Ensure reliable performance with the 3687932 Filler Cap, designed for Cummins Engine models ISX, QSX, X15, QSK, QSM, QSZ, and QSG. Compatible replacements for 2869221 and 3104375. Ideal for secure engine sealing and durability.
Supersedes:2869221 3104375
Condition:New / OEM Quality
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