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Automann · Exhaust
562.U90400C
In stock · ships from Knoxville
A 4-inch chrome exhaust rain cap for heavy-duty truck straight stacks.
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Fits 4-inch outside diameter stacks; commonly used on semi-trucks and other heavy-duty vehicles with vertical exhaust stacks.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 13 of 13.
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It uses a counter-balanced flap that opens by exhaust pressure while the engine is running, and closes automatically when the engine is off to keep rain, debris, and soot out of the exhaust system. This prevents water from entering the muffler and engine, which can cause rust and internal damage. Rain caps are typically replaced when the hinge becomes worn, the flap sticks, or the cap is missing.
Part Number: 562.U90400C
RAIN CAP 4 CHROME
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside exhaust
