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Cummins · Hardware & Fasteners
3684284CUM
In stock · ships from Knoxville
A sealing washer made by Cummins, part number 3684284. It is designed to create a tight, leak-proof seal between mating surfaces, often used in fuel, oil, or air system connections on Cummins diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
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All confirmed applications for this part number.
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Other applications
Listings reference ISX and PACCAR-Cummins applications, but exact fitment should be confirmed via Cummins service manual.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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Replace this washer whenever it shows signs of wear, crushing, or after disassembly to maintain proper sealing and prevent fluid leaks.
Part Number: 3684284CUM
WASHER - SEAL
Dealer: KP Services Crossville
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