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PAI · Truck Parts
900321
In stock · ships from Knoxville
This is a comprehensive O‑ring kit for rebuilding the air‑operated shift‑range cylinder on Eaton Fuller manual transmissions.
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Fits many Class 8 trucks (Freightliner, Peterbilt, Kenworth, International, Mack, Volvo) when they use the corresponding Eaton Fuller shift valve. Always verify the transmission model and shift‑cylinder part number before ordering.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 20.
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It includes all the seals, gaskets, and hardware needed to replace worn components that cause air leaks, sluggish range shifts, or failure to select high/low range. Use this kit when you notice air hissing from the shift valve or experience delayed/incomplete range changes. It is a direct aftermarket replacement for the OEM Fuller K‑3341 kit.
Part Number: 900321
KIT K3341
Dealer: Post Onsite
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