Crankshaft Seal 14-22 Chevy 5.3L 6.2L

The crankshaft seal for 14-22 Chevy 5.3L and 6.2L engines is a critical wear component that prevents oil leakage from the front of your engine block where the crankshaft emerges. This MAHLE ORIGINAL/CLEVITE seal is engineered for modern GM truck and SUV platforms, including Silverado, Sierra, Tahoe, and Suburban models equipped with these powerplants. Whether you're performing routine maintenance, rebuilding an engine, or addressing an active oil weep, this OEM-equivalent seal delivers the durability and precision fit you need to maintain proper engine oil pressure and prevent contamination.

MAHLE ORIGINAL seals are manufactured to exacting OEM specifications using premium elastomer materials that resist thermal cycling, chemical breakdown, and wear. The dual-lip design creates a robust barrier against oil escape while minimizing drag on the crankshaft—critical for maintaining fuel economy and reducing parasitic losses in these efficient small-block and big-block platforms. The seal's precision bore diameter and contact surface are engineered to work seamlessly with factory crankshaft geometry, ensuring zero compromise on engine performance or longevity. Installation requires proper alignment during front cover assembly to guarantee consistent compression and lasting reliability.

This seal is essential for mechanics and enthusiasts tackling engine rebuilds, head gasket service, timing chain replacement, or addressing oil leakage at the front seal location. Both naturally aspirated and turbocharged variants of these LS-based engines benefit equally from proper seal integrity. Installation is straightforward during front cover work—use a seal driver to prevent lip damage and ensure the seal seats flush with the cover bore. Keep this MAHLE ORIGINAL part on hand during any major engine service on 14-22 model year Chevy trucks and full-size SUVs to guarantee factory-correct sealing and avoid future oil weeping.