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Fuel Tank Accessories · Fuel System
FTAC80
In stock · ships from Knoxville
This is a heavy-duty locking diesel fuel cap designed to replace the factory cap on many Volvo, Mack, and International semi-trucks.
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Verified fitment for 5 applications
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All confirmed applications for this part number.
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Fits tanks with a 3-7/16" (3.37") inside diameter filler neck. Not compatible with tanks labeled "Low Sulfur" or "PNG" style tanks. Verify your existing cap's inside thread diameter matches 3-3/8" before purchase.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It prevents fuel theft and siphoning with a keyed locking mechanism, while its built-in pressure and thermal relief vents (up to 190°F) help keep the tank at a safe operating pressure. It's made from durable aluminum and includes a safety chain and bail to secure it to the filler neck. You'd replace a worn, leaking, or non-locking cap with this to improve security and maintain proper tank venting.
Part Number: FTAC80
Fuel Tank Accessories Locking Fuel Cap for Volvo/Mack/International
Dealer: Knox Trailers
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