DOC HARLEY: OIL COOLERS

Welcome to the Service Clinic at Low Country Harley-Davidson with Doc Harley. Here he talks about the pros and cons of oil coolers.

[@bobmohr4952]

Doc Harley is the kind of tech we all wish we had at our favorite repair shop. Love to listen to this guy.

[@neil426]

Doc, your voice was made for radio!

[@januarioqueiroz3122]

Agree!!!

[@jimfisher3161]

I thought the same thing

[@SebSar-ef4zj]

Like a sports commentator ? !

[@reddog907]

Ha ha , someone told me I had a face for radio.

[@SebSar-ef4zj]

We won't have any problem if Doc Harley is Moto GP Commentator . Like Mr Murray Walker was for Fomula 1.

[@allenhawker3911]

I don’t even have a motorcycle but love listening to Doc Harley and learning about them! So interesting!!!!

[@arthurleino]

I bought a Harley Davidson oil cooler for my 1983 FXWG in 87 before Squadron moved to Japan. Left it on when I got transferred to the Philippines. Still have it installed!

[@lobo176]

I live in Arizona and none of us run oil coolers. I bought the Harley oil cooler with thermostat, always leaked around the adapter. I took it off and have never used it since. We ride all year even above 110 deg. HD does testing on new bikes out here in the middle of the summer. If they needed them they would come from the factory with them. Just ride and don’t worry about it. There are a lot of high mileage Harley’s out here in AZ without coolers and no problems.

[@Tripp216]

Lobo 176 same thing here in Las Vegas

[@garybaldwin1061]

While your at it take the transmission cooler off your cars transmission. How do you know how hot the oil temp gets on your harley. An oil temp gauge is also a good idea.

[@beri232]

What bike do you have and what oil temps do you see? I live in Canada and ride a 2014 Fatboy Lo. Oil temps on the dipstick show 250 - 270 degrees at temp. I’ve got an S&S 124 with 585 cams… Seems hot cuz the old 103 usually ran around 220 degrees.

[@mrkapusta9935]

Doc i've watched a lot of your videos and YOU BY FAR as the most knowledgable som bitch i've ever seen on HD bikes. Thorough, great radio voice, and informative. Keep up the great work and ride on!

[@charles1440]

This guy could star on any documentary! He is the.ultimate professional announcer ,

[@petethepunisher3015]

Great addition, I put a Harleydavidson fan assisted oil cooler on my 2018 RGS after it got installed with a hotted up SE stage 4 , I like it and it does help I've put 32000ks on bike since install.allso I put a fender skirt on my front gaurd and mounted it 1/2" lower to protect my fan assisted oil cooler , I get no mud,dirt, stones on cooler ,still looks brand new , I do across the board , riding.

[@johnardis6027]

Engineering Ph.D.? It's great to listen to someone who delivers a structured narrative and who avoids jargon. Respect!

[@LowCountryHarleyDavidson]

Thank you for your kind words…..Doc

[@donwaltman4276]

Great video Doc, there's so much more to oil than I realized. Thanks so much for explaining it to us non techs.

[@LowCountryHarleyDavidson]

You bet!

[@six8415]

I love the way he said “Hopefully” 😂

[@northerniltree]

I watched this oily in the morning. It was way cool.

[@franckycath]

THANKS clear and clean explanation!!

[@whodafokcares]

Here in SE Louisiana its 90 F at 7 am part of the year. Get caught in traffic and you quickly know your 20k motorcycle is going to start overheating . On my 2013 Ultra I had the "Reefer" by UltraCool, it kicked on a lot in the city and traffic, and after I would pull off a long hard interstate run on to an off ramp on the interstate. The 20217 FLHXS had the HD fan assist on the factory oil cooler that did the trick. once i added the S&S cam and High flow oil pump it helped keep it a lot cooler. Now I'm on a 2021 Triglide and looking at DK cooler/filter relocation or UltraCool cooler , but you have to cut part of your lower out to mount it . I know it solves the heat problem no matter what performance mods I do later. My thought is cool engine ='s longevity and better performance.

[@andrewtheodorethomas]

Got my daily dose of Doctor Harley

[@jarocla665]

I never got the oil air cool concept but they cleared up a lot for me

[@christidmas3995]

Quality of video and presentation is great.I agree with the other guys that you have a great radio presenters voice for sure.

[@wolfemanbog4176]

I am going to install the fan assisted oil cooler on my 2017 ultra classic run hot and wanted to not worry on street lights

[@PonchMuniz]

Good stuff Doc! Thanks!

[@YanCFLSantos]

Hello @Low Country Harley-Davidson My name is Yan and I have a v rod muscle 2014 and I am doing the coolant replacement. In the service manual says 2.4L, is already open the Radiator drain plug and Front Cylinder Coolant Drain Plug in just removed 2L coolant. Is that correct? How do I find the Rear Cylinder Coolant Drain Plug? I can not find it ... could you help me?

[@robertjbyrd1]

My 2017 Freewheeler did not come with fan. Heating at rear of back cylinder head can be diminished by removing that cat that adds major back pressure in a short distance to back cylinder. Also using the EITMS ? to kick out fuel heating in back cylinder in summer traffic is a must imo.

[@dodge33445]

Doc, Will an oil cooler help for my bike? I have a stage 4 setup and it runs hotter than normal with the cams, and heads . But in traffic I dont think this would help? at lights and such.

[@kpnomad7]

Doc , would a twin cooled benefit from a oil cooler and filter relocation system?? Who has this available for the twin Cooled?? Thx!

[@Heavy69Metal]

I have a 2018 Road Glide Special and I’m running @300-316 and in stop and go detour at one time and got up to 369. I have the stock air cooler. Will a fan behind it work to lower it? I track my temp via My Power Vision engine temp. What’s a good replacement aftermarket that’s a direct replacement with fan. Or add a second oil cooler to side with fan assist. What’s your thoughts?

[@dennism103]

Brilliant advice

[@dannybryant4459]

Thank you Doc

[@jondoe8816]

I put a Harley on my 08 sglide and 09sbob hoses bent to fit. And was hoping they had thermostats. Thanks for informing me. Not much room for a fan though 🍻

[@jeanvanderschuren5719]

Hello Doc, thanks for your videos!! I own a road king 103 from 2011- original-except air intake I believe. EIMTS is often on. I would like to make sure that the engine is cooled enough and improve the comfort. With the catalysator there is also lot of heat from the exhaust: what is the best for my me: cool flow fan, or adding the Harley fan cooled radiator. I believe that each of them can be mounted, possibly not with all the functionalities.

[@LowCountryHarleyDavidson]

According to my catalog neither will fit your bike. A HD oil cooler will help the motor. I prefer the Jagg 10 row with fan or the ultra cool with fans. To help you feel cooler....stick your knees out in the wind :) Thanks ~ Doc

[@smoothsam7]

Always helpful thank you

[@mario930131]

Hey doc I have a xvs vstar 250 with cold air intake custom pipes drag style and a 115 main jet I took off the air injection system I use mobile 1 racing 4t oil would you recommend an oil cooler for my bike

[@supermanlol67]

How come the oil cooler that HD makes for the sporsters doesn't come with a thermostat?

[@michaelseroy9586]

I have a 2019 Street gluid, I put on the Harley Davidson air cooler with the fan behind it. My question is at what temperature does that fan kick on?

[@jamesdjesse]

you present info well. thanks

[@exupakias]

Thanks for your time

[@dennism103]

I'm very pleased with my 2018 road king, it's fun to ride.

[@slit4659]

You sound like a 12 year old.

[@paulfitzgerald6426]

07 FLHT. Dealer fitted the Harley CVO oil cooler (my request) which was located low on the front tubes as per all CVO's. Lasted maybe 2-3,000 mile before it was holed and credited under warranty. Guess I was one of the unlucky ones.

[@GunsHarleysUSA]

I have a question I hope you have an answer to..My GF has an 06 1200 Sportster which has the pop up oil cap and the problem is her leg keeps popping up the cap while riding and oil seeps out all over everything and I can not inure out how to prevent this from happening. Do you know of any way to stop this..?

[@brucesantacory1390]

Mike, i have a 2012 FLHRC that looks like it has a factory oil cooler but my TC103 even with synthetic seems to run hot and limp mode comes on too soon in my opinion......help any ideas?

[@Vic-ng8if]

Very informative mate. Dont think I'll need on in Ireland but just checking, and now I know.

[@glenhardy4770]

Liked Sunday late afternoon 18 April 2021! Okay, when I have my pre-owned 2001 Sportster 883 tow-trucked in to the “vintage Harley-Davidson repair shop” for its imminent internal cylinder head rebuild, I will have them install an oil cooler. A short story about the Harley-Davidson Customer Care Department: they do not care about their own customer’s motorcycles once they see it as vintage. 😀

[@firegrunt03]

Thank you professor

[@garyzanghi9272]

Great video Mike

[@LowCountryHarleyDavidson]

Thank you

[@benjohnson3700]

One of the thing you didn't mention is that oil temperature at crank bearing and rod bearing while driving it is lot hotter, if you take stock bike and you put cam and pistons and ride like sport bike, yes you should use oil cooler.

[@boomerpaschall]

Thanks again doc, salute 🤚

[@LowCountryHarleyDavidson]

Salute👍….Doc

[@arkansasredneck7358]

Glad to hear Harley Motorcycles are updating their engineering. USA built Victory adapted this 20 years ago. Welcome Harley. Keep the improvements coming.

[@trigun890]

Yet look who went out of business????

[@eronfitz]

@trigun890. You need to look into why Polaris halted production of Victory, The reason had nothing to do with Harley & everything to do with Indian. Typical response!

[@denniskapczynski562]

My 1979 HD low rider came with a factory installed oil cooler

[@DanielRyanScott]

You know Harleys have had Oil Coolers for a long time now right? They are just not included in all models or packages.

[@claudelarocque3655]

Unfortunately victory is gone but Harley is still here. Makes you wonder who's smarter

[@arod5215]

Does the oil that cycles through the oil cooler the primary oil. ? Sorry I honestly don’t know. And I had something hit my oil cooler and it began to leak slowly.

[@rodgersheller5477]

Have you ever tested whether it's really worth it to purchase a Dooxi Car Adaptation products?

[@JamesFrost74659]

1979, I bought a brand new Superglide with the new 80-CI engine. No oil cooler, after about an hour of riding, the rear cylinder would get so hot it would start to predetonate. The rear pipe would start popping flames with a loud POW POW POW. I would have to pull over on the side of whatever road, shut the engine off and let the air cooled engine cool. I sold that bike a few years later, I was sick and tired of dealing with it. Yes I told the buyer why I was selling it for only $3000 dollars in excellent condition. I quit riding Harleys for 28 years. I now own two more, BOTH have thermostat fan assisted Ultra Cool oil coolers and the Electraglide also has Love Jugs. Even tho a V-twin engine configured fore and aft is a dreadful design flaw, I'm riding Harleys again. If I ever have a single problem trying to keep a V-twin (incorrectly configured) air cooled engine cool again, I'm selling both damn Harleys and I will buy a brand new, the best motorcycle in the World, a Honda Goldwing. (get a thermostat fan assisted oil cooler.) Have a nice day.

[@LowCountryHarleyDavidson]

Please stop in Low Country Harley-Davidson in Charleston SC and explain to me why you took the time to post this comment…..Doc

[@JamesFrost74659]

@@LowCountryHarleyDavidson Good morning Sir, I will do that. I live in Myrtle Beach.

[@sashunter4352]

Hey Doc I have a 2018 Harley Breakout anniversary with a 117 Screaming Eagle kit fitted can I upgrade the oil cooler on my bike does the one you show fit my bike and can I get it from you I'm in the UK

[@afghanyeti]

I have a 05 FXSTDI, live in Southern CA Hermosa Beach, in the summer I can't get high enough on my toes to get away from my oil tank. Going to put an ultra Cool w/a fan on my bike. I'll take 20⁰ temp reduction, smaller blister😬 my bike now has 10k miles on it, so I do ride a bit.

[@Hello-vr1md]

Hi im building a 2013 street glide air cooled harness etc.... ive bout everything for it from ebay.. so..when it came to getting the engine.. ive purchased an 2014 liquid cool ultra limited twin 103 engine.. now.. ive purchased the liquid cooling system..but how to hook it up to a 2013 oil cool harness and bike...

[@exexpat11]

I almost thought you were going to down them like a lot of techs do. I am all for function over looks (unless it is as ugly as a Suzuki Maduro or B-King). I am thinking about getting one for the crazy hot summer rides.

[@HealthvsWealth4me]

Thank you for this video Doc. I looked into putting on one of these coolers until I heard from a forum member a while ago...that in cold/cooler temps, the cooler can cause the oil to "froth" up and that would NOT be a good thing. I didn't hear you address this. ???

[@LowCountryHarleyDavidson]

The Harley-Davidson oil cooler mentioned has a built in thermostat that is used to prevent a "froth" up from occurring due to cold temperatures.

[@CarlosGarcia-ls4hn]

@@LowCountryHarleyDavidson I understand that you can also add a bypass valve that you can shut off the flow to the cooler for those of you who live in colder climates.

[@nicholashutson8985]

Do you recommend a oil cooler for 2019 Harley iron 883 ?

[@stewartmackay539]

I have ridden a HD for years and the one thing that always comes to mind is how so far behind the curve HD are when it comes to adding positive innovations. This is a prime example. Always playing catch up.

[@DanielRyanScott]

Just because its not standard on all models doesnt mean its new. Harley had stock oil coolers on their bikes since the 70's. Its just a different package, like how some cars could get the power window upgrade back in the day.

[@artmchugh5644]

I would never ride a HD but I like your thoughts!! 😆😆😆🏍🏍🏍🏍🍺🍺

[@ryanmoore2779]

@@artmchugh5644 yet here you are commenting on and watching HD material. 🤡

[@artmchugh5644]

@@ryanmoore2779 I am a motorcyclist!!! Everything cycle related interest me , itchy boots videos are great ,about her travels. Moto GP videos are great because of the balls those racers have!!! But lots harley videos are about fixing problems with their bikes !!! I just find it interesting that they seem to think that straightin out that crap is normal !! Watch the " our ride life " new video, 95.000 miles on the chrome air compressor and it needed cams,oil pump and other stuff and they were smiling going to pick up the bike . I would be PISSED paying $$$$$$$$ for all those repairs!!!🤮🤮🤮🤮🤮🏍🏍🏍🍺🍺🍺

[@ut1004bp]

I'm going to have to slightly disagree with the reason for HD putting the fan cooler on the Trike models; rather than because they are moving slower, more stop and go or that they are in traffic more often, I believe its because of the higher 114 displacement, more engine load due to extra weight and rear running gear, and that they typically have or get Lower fairings which tend to block some free flowing air.. I live in the ozarks area, have a 107 Street Glide, and added Lower Fairings and I'm considering adding a fan to the OEM cooler and maybe I will be able to keep the Rear cylinder auto Shut-off feature disable..

[@donwaltman4276]

If you have it installed at a Harley dealership they can do it correctly and then no worries. I do know from watching Doc, the computer on the bike looks at everything and if it sees something it doesn't like, it causes problems.

[@kennethking8943]

Doc What's your opinion on Love Jugs oil cooler ?

[@WindsurferHD]

I ride my 2002 Fatboy here in the Texas heat….without an oil cooler runs great no issues

[@LowCountryHarleyDavidson]

Thanks for sharing….Doc

[@abiprates5943]

Is it possible to ad a oil cooler on a Yamaha V Star 750? Your comment! Thank you.

[@rudeawakening3833]

Doc : thanks for having such clear , concise , and informative videos for us ! I’ve owned quite a few H-D’s since the 70’s , and remember back in the day , the bikers added oil coolers like the Jagg , which as you know mounted to either side of the frame’s down tube . This allowed “ clean “ air to run past it and STILL allowed said clean air to hit the V- twins forward cylinder . I traded my 83’ beloved FXWG Wide Glide in for a brand new FXLR Low Rider , and was SO DISAPPOINTED that Willie G and da boys installed the oil cooler smack dab in front of the engine’s front jug ! Now in the Texas heat , the air is preheating the air to the forward cylinder , and sending a blast furnace of scalding air to the rear cylinder … YOUR opinion please , sir ?

[@LowCountryHarleyDavidson]

My opinion is strong. Every one is under the misunderstanding that this large "oil cooler" in front of the front cylinder is for the motor. It is not! It is only to cool the front and rear exhaust valves. With the size of the M8 motor the Motor it self need a 10 row with fan oil cooler besides the center oil cooler. Like the old days. Yes I would rather have two oil coolers on each side of the frame tubes and let the front cylinder receive fresh air. I am stepping down from my box now....Doc

[@rudeawakening3833]

@@LowCountryHarleyDavidson Thanks for that most detailed response ! I was “ happy “ to see them install this oil cooler ; I was just shaking my head and asking myself - “ WHAT were their engineers THINKING ? “

[@glfmarmadison5126]

Hey Doc, Would I need an oil cooler on my 2017 Street Bob? It’s got stage 2, aftermarket Reinhart exhaust , and the engine cam. Or is it good for the engine over a the lifetime of the engine or bike, high mileage, etc? Not planning on doing stage 3 or 4 but maybe in the future.

[@LowCountryHarleyDavidson]

Glfmar Madison your bike should do well as is, just make sure it has a good tune.

[@Knuckledragnation]

Hello Doc. Thanks for the info. I was curious if adding an oil cooler messes with the PSI rating of the oil system itself on the motorcycle? I was just curious if the stock oil pump can handle the extra oil lines, cooler, and all of the curves and ups and downs. Maybe I'm overthinking it. Anyways just curious and since you didn't mention it maybe it's not an issue. Also while I have you could I add a stock H-D oil cooler from say a 2017 Ultra or Freewheeler to my 2016 Ultra with liquid-cooled heads? Thanks Doc.

[@LowCountryHarleyDavidson]

Two points, purchasing an oil cooler designed for your Harley-Davidson will work with your designed oil pump. So installing an M8 oil cooler on a twin cam is not a good idea….Doc

[@nevr2hi]

Sir, It gets hot out here in Texas. I have a 2017 CVO Street Gide. It’s set up to be water cooled. Would it be overkill to add a fan assisted oil cooler. What do you suggest the temperature should be for the 2 fans come on? What should the temperature be to turn them off or what should the differential temperature be? I was told 8 degrees I think it should be more.

[@LowCountryHarleyDavidson]

Yes I would add an oil cooler with fans. Read the fine print when choosing. Many oil coolers with fans do not fit on twin cooled Harley-Davidson with the lowers and water pump. My Jagg with fan comes on at 210. Thanks ~ Doc

[@nclinagirl]

I have a 16 Heritage with true duals and a big air breather. The pipes are wrapped. I recently added a fan assisted cooler with thermostat. I rode yesterday and it was a pretty cool day. The bike temp got up to 273 in stop and go traffic but was running around 250 otherwise. I’m worried about the summertime. Is there anything else I can do to cool it down?

[@LowCountryHarleyDavidson]

You have checked all the right boxes. Keep the oil clean as much as possible. Make sure your “tune” is correct. Too lean will raise the temperature. And keep moving, this is an air cooled motor👍…Doc

[@kenbuttone8775]

Doc Saw a vid that recommends add a small amount of mmo to the gas tank with each fill up. What are your thoughts on this Tha ks sir.

[@jamesfisher2478]

@gemini232003 Marvel Mystery Oil

[@olironrider8918]

Living in South (HOT) FL. Thinking seriously about getting an Iron.. but concerned about the heat. Can an oil cooler be installed on the new Irons??

[@DanielRyanScott]

Yes, they are side mounted, I believe

[@peluchy]

Thanks Doc

[@charleskittler4330]

My 09 Ultra came stock without oil cooler I have added two oil coolers over the years and miles. PS I live and ride in South Florida 😎😎

[@user-pj7go6ie4u]

Ambient temp here in inland Australia varies from-6 to +40 Celsius. Oil cooler with thermostat would be great ❤❤❤😊😊😊😊😊

[@philo5096]

Great vid Doc. I own a 2018 lowrider,does it have an oil cooler.

[@CovertOperation13]

If it does, you will see it on the front lowest part of your frame (in front of the engine) with the lines going into the motor right above the oil filter.

[@philo5096]

@@CovertOperation13 thanx man

[@peterbergeris6510]

Doc, I was listening to Kevin Baxter video on camplate n he talked about oil coolers. He disagrees with Harleys system because it flows dirty oil thru the cooler first n then thru the filter. He uses Jagg coolers.

[@brianb1767]

Hi Doc, what are your thoughts on OILBUD hidden oil coolers, any experience with them? Looking for an oil cooler that will be the most efficient for my 2008 FLHX with a 103ci installed. My bike always ran hot since new, even without the upgrade to the 103ci. Your help and knowledge is deeply appreciated, THANKS and stay safe!

[@LowCountryHarleyDavidson]

Brian I truly appreciate the question. I did not know about oilbud coolers. I am looking into them. Before your question I have been looking into Jegs and ultra-cool. I am a true believer in a fan with a cooler for those stop and go traffic moments. There are key points. 6 row vs 10 row. How much CFM the fan capability. Thermostat fittings and fitment. Do your research as I am. An oil cooler is definitely a great addition to any Harley-Davidson. Thanks ~ Doc

[@brianb1767]

@@LowCountryHarleyDavidson Hi Doc, I want to thank you for taking the time to answer my question and give me suggestions. After my research and much debating, I've decided on the Ultra-Cool 3.0 dual fan assisted oil cooler. I'm looking forward to much cooler ride! Thanks again Doc, be safe!

[@CATmanATL22]

Doc. I have a 2012 Roadking police, I was wounding if Harley makes a fan assist cooler for my bike or do you know of a good aftermarket one

[@LowCountryHarleyDavidson]

Harley-Davidson offers their tried and true premium oil cooler without fan. There are several aftermarket manufacturers who are offering an oil cooler with fan (s)..Jaggs and Ultra Cool are at the top of the list. Do your research, follow the reviews by people who have installed and rode with them in the heat. Thanks ~ Doc

[@stevePHXD]

Well you at least convinced me to get an oilpan cap that has the thermometer for my sporty. After awhile I guess I'll see if I need an oil cooler too.

[@Hillbillyhiker]

Just more stuff to break.and increase weight

[@chrisquas4113]

Where do you ride? I ride in Arizona in the summertime almost everyday, I don’t have any issues

[@peterbergeris6510]

How about using steel braided lines n not worrying about stones flying . I had one on a 85 fxr. Can I get one for an 09 heritage softail? Would you know approximate cost of parts?

[@ralphklink6288]

Steel braid covered oil hoses may well help guard against foreign object damage, however the heat exchanger body itself remains at risk of puncture damage from foreign objects unless protected by a wire mesh screen. Thanks, Ralph K in St Louis, MO

[@kevinbeasley1615]

Is it hard to install on a 2016 Limited

[@CBR250RMAN]

Hey Doc. What's your opinion on Love Jugs? I live in Savannah and as with you, it can reach 110 heat index daily during the summer riding months. My 72 gets me to work and back home as many days that dry weather allows. I was thinking about installing the jugs as opposed to an oil cooler. Any tips would be greatly appreciated.

[@LowCountryHarleyDavidson]

I prefer an oil cooler but the love jugs could work.

[@CBR250RMAN]

@@LowCountryHarleyDavidson thanks for the quick response. My 72 is small in the space category and when you mentioned debris hitting the oil cooler coils, I thought maybe the jugs would accomplish the same for my needs, without the additional risk of a sudden oil leak due to damage at the coils. Thanks again brother.

[@jackcalvar6489]

Doc do you need to re-tune the bike after installing an oil cooler? I ride mostly in city traffic and my 2005 twin cam gets my right thigh medium well while at a traffic light.

[@LowCountryHarleyDavidson]

No re tune with an oil Cooler addition. But maybe look into your tune. Timing might be too advanced at idle....Doc

[@hectorbarajas9316]

Doc, …… i have question: Years ago I had a Sportster (1994) and there used to be an aftermarket round oil cooler that after you removed the oil filter you could screw on the finned oil cooler on and then the new oil filter behind it. It also gave your Sportster slightly more oil capacity along with extra cooling during very hot climates. During the winter time there was a leather sleeve that slid over the cooler to block the now much colder air flow on the fins but still allowed for a tad larger oil capacity w/o having to remove the cooler. I wanna say HD used to sell this product but have not seen one in 26 years. Any ideas on who made these animals and where/how I can get one now for my bike ?

[@LowCountryHarleyDavidson]

Check V-Twin web site and ask the cool dudes at Lowbrow customs...Doc

[@hectorbarajas9316]

K

[@dennism103]

U are a genius...

[@08harleykmackay96]

Ive been wanting one for my 08 xl1200 nightster its had a few mods and I think this is making it run a little bit hotter then normal. I'd love to try one to see if it makes a difference but I'm not sure if it Will fit on my sportster with the forward controls does anyone know if it will fit??

[@LowCountryHarleyDavidson]

HD catalog suggests part # 62700082. Thanks ~ Doc

[@MoeLarrycurly1]

Yep I use and still do a.. transmission or power steering cooler loop.. on my shovel

[@LowCountryHarleyDavidson]

That’s where it all began….Doc

[@jmoskaly1]

Ha Doc, how about the twin cooled model of the 17 CVO with Stage iv? How's that cooling compare?

[@LowCountryHarleyDavidson]

Twin cooled is awesome in controlling heat. I don't believe anyone is offering a larger oil cooler or fan assist at this time. ~ Doc

[@humoroustumor]

My 2019 softail slim came with an oil cooler but without an electric fan. Would it be possible to have an oil cooler with an electric fan installed by the dealership?

[@LowCountryHarleyDavidson]

HD does not offer a fan assisted oil cooler for the Slim. I went with Jagg 10 row with fan..I love it! Doc

[@paulguidry1620]

Does the 2017 fat boy s 110 screaming eagle come with an oil cooler doc? Also now has the 117 stage four upgrade.

[@LowCountryHarleyDavidson]

The M8 comes with an oil cooler

[@katana258]

hey '' doc '' ever hear of a oil cooler screen to protect the oil cooler .. ?? just asking 1960 tec .. maybe you need to learn ..

[@georgedishman3276]

Doc I have a 2016 Heritage with an add on Harley cooler. It runs in the 220 to 230 degree range with 20w 50 oil. I changed my oil and went to straight 60w oil. its over 98 degrees here everyday. I guess the cooler did not like the thicker oil and doesn't flow as good. My temp now goes up to 270. I have went back down to 20w 50 and the temp lowered back down. Have you ever heard of this? I was following the owners manual with the recommended weight of oil for the outside temp. With the thicker oil the engine was quieter. (stock engine clatter)

[@LowCountryHarleyDavidson]

This is news to me. You followed all the right thoughts. What type of oil cooler do you have, and how are you monitoring your oil temp? In theory an oil cooler does have very tiny passages for the thick oil to pass through BUT most oil coolers have a thermostat that controls when the oil passes through the oil cooler so the thickness of the oil should have no influence on control of oil temp by oil cooler. This is a question I will ask Harley after you tell me what oil cooler you have and how you are monitoring oil temp. Thanks ~ Doc

[@georgedishman3276]

@@LowCountryHarleyDavidson The oil cooler is a Harley Davidson Brand. I am monitoring the oil temp with a Harley analog oil temp gauge. The oil cap one. I was running 250 to 260 before I installed the oil cooler with 20-50 oil. I also have the Screamin Eagle oil pump assembly to try and flow more oil.

[@beri232]

@@georgedishman3276 I ride a 2014 Fatboy Lo with an S&S 124 with 585 cams. My oil measures 250 - 270 degrees also (measured on my analog dipstick). I’d like to shave 40 - 50 degrees but I’ve heard most guys are only seeing a 20 degree drop in temp. I live in Canada…. so no Arizona heat here.

[@alenaniznanska5228]

I have 2014 Tri-Glide need an oil cooler. I can't seem to get one here in the Philippines and haven't found one on hd.com. Do you have one with the proper mounts?

[@tishbaldwin4338]

Try DK Customs in Mississippi. they will be happy to help. Address: 4159 MS-178, Red Banks, MS 38661 Phone: [phone]

[@mohabens5469]

How about an oil cooler for a 103 on a 2017 fatboy.

[@edmundwasilewski]

👍🇦🇺Doc, I've got a 2017 Harley Davidson FLHXS, M8, 107ci. Where can I buy a oil pressure gauge. I'm told they are not available for the M8 engine, where can I buy one?

[@LowCountryHarleyDavidson]

A1cycles.net/oil-pressure-gauges Thanks ~ Doc

[@rudeawakening3833]

Awesome insights Doc ! I’m ( still ) highly disappointed that HD didn’t follow Jagg’s engineering by having the location of said oil cooler to either side of the down tubes of the front of the frame to allow “ clean air “ for the oil cooler AND clean air to hit the front of the front cylinder ! ( instead of placing the new HD cooler directly in front of the engine ) This was a poor choice on the Motor Company’s part ; it would have been NO MORE expensive to have chosen this better location. , IMHO . Peace ☮️

[@Indy509]

I have an '82 fxr with an oil cooler, that looks like a little transmission cooler from a car... now I know it is lol!

[@wb4514]

Whats your thought on the HD 260082-05c cooler for a 2000 RK ? Thanks .

[@LowCountryHarleyDavidson]

Yes go for it. I am a big supporter of a oil cooler on any Harley-Davidson. Thanks ~ Doc

[@mopar340dave]

I bought an extruded cooler, a thermostat and made my own custom brackets. Hardlines are about to happen.

[@boblafountaine9560]

Hey Doc. Is oil cooled different than oil assisted?

[@mopar340dave]

Before the twin-cooled models, they pretty much called them air-cooled, oil assisted but it's bs. The air cools the exterior of the engine, oil lines and tank so the oil itself is a liquid pulling heat away from the engine. Adding an external cooler just makes it work better....still air and oil cooled.

[@benji512]

Doc, I own a dyna low rider 2015 it gets hot often I did everything but it's still hot. Would a oil cooler help?

[@LowCountryHarleyDavidson]

For the motor Yes for you maybe….Doc

[@ml414skidoo]

Hello Doc, thanks for the video. When a fan assisted Harley Davidson oil cooler is installed and plugged into the factory supplied wiring harness on a 2019 touring. Does the ECM need to be programmed to control the fan or does the ECM recognize the cooler fan and begin to control per oil temperature? I assume the HD fan assisted cooler over the counter part is the same as the trike fan you mention. it is a great and surprisingly low cost addition.

[@mahlercdo3]

ml414skidoo did you ever find your answer to your question I was thinking about adding a fan to my 17 street glide

[@ml414skidoo]

mahlercdo3 I asked my local dealer again when I had my first service done and the service advisor said that it will just work when plugged in. But after 5500km now I’ve never heard, seen or felt it turn on, just hope it works I guess 🤨

[@cowboy3300]

Does my 97 ultra have the system that shuts off the back cyclinder?

[@LowCountryHarleyDavidson]

It was an option that year with a special download. Not sure if it is still available for your bike.

[@nobodysreview6137]

Is my 2013 Streetglide a oil cooler upfront that im seeing? lol i gotta go look at the lines

[@LowCountryHarleyDavidson]

Yes. Thanks ~ Doc