GZZTORES Oil Pan Gasket Set for GM 4.8L–6.2L Engines — Direct-Fit Replace 12612350, Durable OEM-Style Seal

GZZTORES Oil Pan Gasket Set is a direct-fit replacement gasket kit engineered to seal the oil pan on compatible GM 4.8L–6.2L engines and stop leaks quickly and reliably.

If your Chevy, GMC, Cadillac or Buick shows signs of oil seepage under the engine, low oil levels or oil accumulating near the exhaust, this gasket set is made to restore a tight seal between the oil pan and engine block. Designed to match OEM geometry and supplied with materials chosen for durability, the kit replaces multiple factory part numbers including 12612350 and OS30693R. It’s intended for model years commonly found across Silverado, Suburban, Tahoe, Avalanche, Colorado, Camaro, Express, Trailblazer, Caprice, Impala, Sierra, Yukon, Savana, Envoy, Canyon, Escalade and Buick Rainier engines spanning 1999–2020.

How will this gasket stop oil leaks?

The gasket forms a continuous barrier where the oil pan meets the engine block, preventing engine oil from escaping and contaminants from entering. Correct fit and material resilience are essential to maintain a long-lasting seal under thermal cycling and engine vibration.

• OEM-style profile for precise sealing surface contact
• Durable elastomer/metal composition resists compression set
• Maintains seal across temperature changes and engine movement
• Helps prevent oil pooling, smoking, and low oil level symptoms

Which vehicles and engines are compatible with this kit?

This gasket set is built to fit a range of GM small- and big-block V8 engines and their vehicle platforms from late-1990s through modern model years. Before purchase, verify your vehicle’s engine displacement and the OEM part numbers to ensure an accurate match.

• Compatible with 4.8L, 5.3L, 5.7L, 6.0L and 6.2L GM engines
• Fits Chevy, GMC, Cadillac and Buick models listed for 1999–2020
• Direct replacement for part numbers like 12612350 and OS30693R
• Cross-references: PG3165, 12558760 and other listed numbers

What makes this an OEM-style but cost-effective option?

GZZTORES designed the gasket to meet or exceed OEM tolerances while using high-quality materials to extend service life. The component offers fitment and function comparable to factory units without the premium price of branded OEM parts.

• Engineered to OEM dimensions for a direct fit installation
• Quality control and material selection target long-term sealing
• Lower cost than many factory replacement parts while maintaining performance
• Packaged and inspected to reduce the chance of shipping damage

How should I approach installation and part confirmation?

Replacing the oil pan gasket typically requires draining the oil, removing the pan, cleaning mating surfaces and installing the new gasket with the recommended torque pattern. Always confirm the part number and visual match to the old gasket before installing to avoid fitment issues.

• Drain engine oil and remove oil pan per vehicle service manual
• Clean mating surfaces of old gasket material and debris
• Use proper bolt torque sequence and specification during reassembly
• Verify replacement part numbers such as 12612350, OS30693R beforehand

Who is this for? This gasket set is aimed at DIY mechanics, independent repair shops and fleet owners who need a dependable, affordable replacement part for GM small- and big-block V8 oil pans. It suits anyone replacing a worn or leaking oil pan gasket on compatible Chevy, GMC, Cadillac or Buick models, and those who value OEM-style fit and durable materials without the OEM price tag. Be sure to confirm part compatibility with your vehicle’s engine code and model year prior to purchase.