GM GENUINE PARTS LS-Series Oil Pan Gasket 12612350 — OEM fit, durable seal for most LS engines (excl. LS7/LS9)

The GM Genuine Parts 12612350 oil pan gasket is an original-equipment replacement designed to seal the oil pan on most GM LS-series engines (excluding LS7 and LS9).

This oil pan gasket restores factory-grade sealing performance using the same specifications GM applies to its replacement parts. Engineered to match fit, finish, and durability expectations, the 12612350 is intended as a one-per-engine replacement to ensure proper sealing and oil containment. It’s manufactured and updated under GM’s OE standards so it integrates improvements in materials and production processes where applicable.

What engines is this gasket compatible with?

The 12612350 gasket fits the broad family of GM LS-series powerplants, with the exceptions of LS7 and LS9 engines. It’s supplied as the correct GM-recommended replacement when the original gasket needs changing on compatible LS engines.

• Fits most LS-series engines from factory GM applications
• Not compatible with high-performance LS7 and LS9 variants
• Sold as one gasket per engine — replace the entire gasket when servicing the oil pan

How does this OEM gasket compare to aftermarket alternatives?

As a GM Genuine Part, the 12612350 is produced to the same engineering standards as the original component, focusing on consistent fit and long-term reliability. Aftermarket gaskets can vary in material and dimensions; this GM part reduces guesswork by matching factory tolerances and design intent.

• Manufactured to GM OE specification for accurate fit and sealing
• Quality control consistent with factory replacement parts
• Updates in production and materials are part of GM’s part revision process

When should I replace the oil pan gasket, and what should I expect during installation?

Replace the oil pan gasket if you observe oil seepage at the joint, during oil pan removal for service, or as part of routine overhaul work. Installation typically requires draining engine oil, removing the oil pan, cleaning mating surfaces, and installing the new gasket per factory torque specifications. Always use one gasket per engine as recommended.

• Replace if visible oil leakage or during oil pan service
• Requires draining oil and removal of the oil pan for proper fit
• Follow GM torque and installation guidelines for best results

What are the quality and reliability highlights of this GM part?

The 12612350 is built to GM’s standards for replacement parts, emphasizing long-term durability and consistent performance. GM updates production and service parts over time, so this gasket benefits from controlled manufacturing and material choices intended to preserve seal integrity under engine operating conditions.

• GM-recommended replacement for original factory component
• Engineered for consistent form, fit, and function with GM engines
• Quality and reliability aligned with GM OE expectations

Who is this for: The GM Genuine Parts 12612350 oil pan gasket is ideal for owners, mechanics, and restorers working on GM vehicles equipped with LS-series engines (excluding LS7 and LS9). Choose this part if you want a factory-spec replacement that simplifies installation, preserves engine sealing, and aligns with GM’s documented service recommendations.