ONER AUTO PARTS Driver Side Valve Cover Kit for GM V8 1999-2010 — Aluminium, Includes Gasket & Bolts

ONER AUTO PARTS driver side valve cover with gasket and mounting bolts is a direct-fit replacement for select 1999–2010 Chevy, GMC and Cadillac V8 engines (replaces 12570427 / 264-965) to restore a clean seal and prevent oil leaks.

This complete kit includes the aluminum valve cover, a matching rubber gasket, the necessary bolts and a tube of sealant so you can replace a worn cover without sourcing extra parts. Manufactured to OEM-style specifications and bench-tested before shipping, the unit fits many 4.8L, 5.3L, 5.7L, 6.0L and 6.3L V8 applications in trucks, SUVs and performance cars. Use this part when you need a reliable, cost-effective repair that restores proper sealing and reduces oil seepage and engine bay contamination.

Which vehicles and engines does this valve cover fit?

This driver-side valve cover is designed for a broad group of GM V8 platforms from model years roughly 1999 through 2010. Confirm your vehicle’s year, engine size and side before ordering to ensure compatibility.

• Direct replacement for part numbers: 12570427 and 264-965.
• Common fits: Chevy Silverado, Suburban, Tahoe, Avalanche, Express, Trailblazer, Corvette; GMC Sierra, Yukon, Savana, Envoy; Cadillac Escalade, CTS, plus some Buick and Pontiac V8 models.
• Engine sizes typically covered: 4.8L, 5.3L, 5.7L, 6.0L and 6.3L V8s.
• Check fitment lists for exact year & model matches before install.

How does this kit simplify the repair process?

The part ships as a ready-to-install kit so you won’t need extra seals or fasteners, saving time and trips to parts stores. The cover is pre-drilled for stock bolt patterns and the gasket matches the sealing surface to provide an effective oil barrier when installed correctly.

• Includes valve cover, rubber gasket, mounting bolts and sealant.
• Aluminum cover prepped to OEM-style specifications for bolt alignment.
• Gasket designed to sit in the groove and keep oil from leaking onto the exhaust or wiring harness.
• Bench-tested for fit and basic sealing before shipping.

What should I expect during and after installation?

Installation is straightforward for anyone comfortable removing ignition coils and loosening peripheral components. Tighten bolts to manufacturer torque specs and allow sealant to cure as directed for optimal sealing. After replacement you should see reduced oil residue around the valve cover and no oil dripping under the engine or onto hot exhaust parts.

• Remove ignition coils and related wiring to access the cover area.
• Clean mating surfaces thoroughly before placing the new gasket.
• Apply supplied sealant sparingly where manufacturer recommends and torque bolts evenly.
• Inspect after first few hundred miles for proper sealing and re-torque if needed.

Why choose this ONER AUTO PARTS cover over dealer options?

This aftermarket valve cover kit is priced to be budget-friendly while matching OEM fit and materials for many applications. It’s ideal when you want a like-for-like replacement without dealer wait times, and comes with a one-year support promise for added confidence.

• High-quality aluminum construction with a factory-style rubber seal.
• Tested at the factory to verify fit and basic sealing performance.
• Lower cost than many dealer parts while still replacing the same part numbers.
• One-year assistance for questions or fit issues after purchase.

Who is this for: This valve cover kit is aimed at DIY mechanics, independent shops and fleet owners who maintain GM V8 vehicles from the late 1990s through the late 2000s. It’s especially useful when oil leaks, burning oil smells or oil on the exhaust/wiring indicate a failing valve cover or gasket. If you want an affordable, tested replacement that arrives complete with bolts and sealant, this ONER AUTO PARTS kit is built to get you back on the road with a clean engine bay.