Husco Hydraulic Detent Replament and Fix on Kubota B7800

On my 05’ Kubota B7800 the float detent on the HUSCO hydraulic valve got damaged by ice in the cap that had no way to drain out. This is a known defect on these valves as rain and melting snow runs down the valve body and seeps into 4 gaps between the collar, spacers and cap. When I took off the caps, both were 2/3 full of ice with some rust to the interior parts, dented and broken ball bearing housing, crushed spring and flattened ball bearings. HUSCO provide their valves to Kubota on a proprietary basis so you cannot buy directly from them. Kubota do not sell separate parts for this assembly and you have to buy the complete kit for $161.42 CAD. The Detent/Float kit is #7553665400 and the Detent/Regen kit is #7553665100 and is $169.11 CAD. The only difference between the two is the inside profile of the “barrel” that the ball bearing housing fits into.
The fix for this trapped water problem is to drill a drain hole in the bottom of the cap and another at the top of the aluminum collar so the water drains out and you can spray WD-40 in the top hole to flush out any moisture.