BlueDevil

BlueDevil built its name on pour-in repair chemistry — stop-leak and sealant formulas for radiators, head gaskets, oil pans, and rear main seals that let a shop or DIYer fix a leak without pulling the part apart.

BlueDevil built its name in the automotive aftermarket around a simple pitch: a permanent, pour-in fix for the leak points that usually mean a teardown, sold through the same auto parts retailers where shops and DIYers already shop for everyday maintenance chemicals.

Products like this move in small pack sizes but steady volume — exactly the kind of catalog Bulk55's bulk model is built to carry. We stock BlueDevil's core lineup by the case, so shops doing routine leak repairs can reorder in bulk instead of buying single bottles at retail markup.

We carry BlueDevil in bulk, including the Rear Main Sealer and Hydraulic Stop Leak. Browse the full BlueDevil lineup here.