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Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer in Saudi Arabia Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer in Saudi Arabia Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer in Saudi Arabia Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer in Saudi Arabia Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer in Saudi Arabia

Moker LS Rear Block Cover - Crankshaft Rear Oil Seal for 1998-2020 GM, Replaces GM 12639250 Housing Assembly, Includes Seals & Bolts - Rear Main Seal Retainer

SAR 188
Brand
Moker
Weight
1.1 kg
– 1 +

Special Features

  • Direct OEM Replacement Fit - Specifically designed and validated for Chevrolet, GMC, Buick, and Cadillac applications. Each housing matches OEM specifications to ensure a seamless fit and easy installation—no guesswork or modification required.
  • Durable Billet Aluminum Construction - Machined from high-strength billet aluminum for superior rigidity and corrosion resistance. Unlike factory cast pieces, this upgraded housing resists cracking and distortion, providing long-term leak prevention under high-stress conditions.
  • Reliable Oil Leak Protection - Engineered to seal the gap between the crankshaft output flange and engine block, effectively stopping and preventing oil leaks. Keeps your engine bay clean, oil pressure stable, and performance consistent.
  • Precision Engineering You Can Trust - Each Moker housing is CNC machined and pressure-tested to ensure exact tolerances and dependable sealing. You get OE-level quality with enhanced durability for street or performance applications.
  • Perfect for Repairs or Engine Builds - Ideal for replacing a damaged or leaking rear main cover or as part of a new LS engine build. Moker's one-piece design fits all production LS engine blocks, making it the go-to choice for mechanics, builders, and DIY enthusiasts alike.

Description

Upgrade your engine's sealing system with the Moker Rear Main Seal Housing, a premium one-piece aluminum replacement engineered for precision fit, durability, and long-lasting oil leak protection. Whether you're repairing a daily driver or building a high-performance LS project, Moker delivers factory-level reliability with aftermarket strength. Application & Compatibility: Compatible with Chevrolet, GMC, Cadillac, and Buick LS engines. Direct fit replacement for factory rear main seal housing. Designed for production LS engine blocks.

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