Main Bearing Set for GM, Chevrolet 5.3L LS-Series Vortec (1999–2013) – 325 OHV V8 16V | 3.780" Bore
Main Bearing Set for GM, Chevrolet 5.3L LS-Series Vortec (1999–2013) – 325 OHV V8 16V | 3.780" Bore
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Main Bearing Set for GM, Chevrolet 5.3L LS-Series Vortec (1999–2013) – 325 OHV V8 16V | 3.780" Bore
Protect your crankshaft and ensure optimal engine performance with this premium Main Bearing Set, engineered for 1999–2013 GM, Chevrolet, and GMC trucks, vans, and SUVs featuring the 5.3L / 325 OHV V8 16V LS-Series Vortec engine with a 3.780" bore.
Why Choose This Main Bearing Set?
Main bearings are critical to crankshaft stability and oil flow. This set delivers OEM-level quality and proven durability for your 5.3L LS engine—ensuring a smooth, long-lasting bottom end whether you're rebuilding for reliability or performance.
Compatibility
Compatibility
Vehicle Compatibility:
Chevrolet: Silverado, Suburban, Tahoe, Avalanche, Express
GMC: Sierra, Yukon, Savana
Cadillac: Escalade (5.3L V8)
Fits both Gen III and Gen IV LS-based engines
Designed for model years 1999–2013
Features
Features
Product Features:
Complete set of main bearings for all crankshaft journals
Manufactured from high-performance tri-metal or bi-metal alloy for exceptional durability
Designed for standard or undersized crankshaft journal applications (confirm size before ordering)
Built to OEM specifications for oil clearance, load capacity, and fit
Helps reduce crankshaft wear, maintain proper oil film, and extend engine life
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