National Engine Crankshaft Seal for 1992-2005 AM General/Chevrolet/GMC/Hummer/Workhorse C1500/C2500/C3500/K1500/K2500 6.2L 6.5L
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National Engine Crankshaft Seal (part number 3945) - a direct-fit replacement for the vehicles in the compatibility list below.
Fits 1963-2005 across 9 makes including AM General, Avanti, Chevrolet models including C1500, C2500, C3500, K2500, K3500, C2500 Suburban, K1500, K2500 Suburban and more - 6.2L 6.5L 6.6L 7.0L.
Interchange / cross-reference: Mopar T3839, Timken 3945, General Motors 10191640, AM General 5742152, General Motors 0704-D104, Timken 332271N, General Motors 03860095, ACDelco 12303932