Best GM Replacement Gaskets: Top Picks for a Perfect Fit

1. AUTOBABA GEN 3 III LS Gasket Set Kit & LS Head Gaskets Compatible with 1999-2010 GM Chevy Silverado GMC Sierra 1500 2500 Engine LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L Replace# 12558178 12551933 12611384

The AUTOBABA GEN 3 III LS Gasket Set Kit is perfect for GM Chevy Silverado and GMC Sierra engines. It fits 1999-2010 models with 4.8L, 5.3L, 5.7L, and 6.0L engines. This kit is designed to replace multiple part numbers, making it a reliable choice for repairs.

It offers excellent sealing to keep oil, coolant, and gas in the cylinder. The durable materials handle high pressure, heat, and corrosive conditions. This ensures long-lasting performance and optimal engine operation.

Easy to install, engineered to OEM specs, and minimizes leaks. Perfect fit for your vehicle. Contact us with any questions.

2. Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

The Michigan Motorsports LS MLS Header Manifold Exhaust Gasket is a direct replacement for GM 12617944. It’s perfectly designed for LS and LQ engines.

Made from multi-layer steel (MLS), it ensures maximum durability and superior sealing. It prevents exhaust leaks in high-performance conditions.

Ideal for LS swaps, engine rebuilds, and header installations. No special tools needed—easy DIY installation. A must-have for performance builds.

3. labwork Engine Valley Cover Gasket Bolts Kit 12598832 Replacement for 2007-2013 GM Truck Gen 4 LS LS2 LS3 LS7 Non AFM DOD

The Labwork Engine Valley Cover Gasket Bolts Kit is a perfect replacement for 2007-2013 GM trucks. It fits Gen 4 LS engines without AFM/DOD. This kit uses part numbers 12598832 and 12610141.

It protects your engine, reduces noise, and keeps your engine bay clean. Always check compatibility and compare old parts before buying.

4. Intake Hat Gasket for GM Vortec 5.7L (350) V8, 5.0L (305) V8, 4.3L V6 Engines – Replace for 15998532

The Intake Hat Gasket is designed for GM Vortec engines. It fits 5.7L, 5.0L, and 4.3L models perfectly. This gasket ensures a tight seal for better performance.

It replaces multiple part numbers, including 15998532, 15998577, 25147204, and 25147235. This makes it a reliable replacement for your vehicle. It works with trucks, blazers, and vans.

The gasket eliminates vacuum leaks, restores engine performance, and improves fuel efficiency. Its flexible design allows for quick and easy installation. The tapered shape ensures correct orientation every time.

5. BTR Brian Tooley Racing MLS LS9 Head Gasket Pair – 4.100″ Bore – Replaces GM Part #12622033 – Multi-Layer Steel for Turbo, Supercharged & Performance LS Builds

BTR LS9 Head Gaskets are made for high-performance engines. They handle turbo, supercharged, and nitrous setups. Perfect for big bore builds.

These gaskets fit 4.100” bore engines. They are multi-layer steel for durability. Replaces GM 12622033 with better sealing.

Built for boost, these gaskets won’t fail under pressure. Ideal for performance and racing engines. Enhance your LS build today.

6. GM Genuine Parts 29549684 Automatic Transmission Fluid Pan Gasket

GM Genuine Parts 29549684 is a reliable automatic transmission fluid pan gasket. It is a recommended replacement for your GM vehicle. This part is made in the United States.

This gasket offers quality and durability. It is manufactured to GM standards for a perfect fit.

Keep your GM vehicle running smoothly. Trust this genuine part for optimal performance. Replace your old gasket with confidence.

7. GM Genuine Parts 12617944 Exhaust Manifold Gasket

The GM Genuine Parts 12617944 Exhaust Manifold Gasket is a reliable part for your vehicle. It prevents exhaust leaks and ensures a tight seal where the exhaust manifold meets the engine block.

This gasket is designed by GM engineers for Chevrolet, Buick, GMC, or Cadillac vehicles. It meets rigorous standards and is backed by General Motors.

Some GM Genuine Parts were once called ACDelco GM Original Equipment (OE). This part is tested and validated to work perfectly with your car.

8. GM Genuine Parts 12609291 Camshaft Cover Gasket Kit

The GM Genuine Parts 12609291 Camshaft Cover Gasket Kit is a reliable choice for your vehicle. It is designed and tested to meet high standards. This kit ensures a perfect fit for your GM car.

GM engineers create these parts specifically for Chevrolet, Buick, GMC, and Cadillac models. The design and materials are regularly updated to include the latest technologies.

This gasket kit may have been previously known as ACDelco GM Original Equipment. It is backed by General Motors, ensuring quality and performance. Trust this kit for your car’s needs.

9. 25PCS M12 Car Oil Drain Plug Gasket, Rubber Sealing Gasket Replacement for GM 12616850 3536966, Engine Oil Pan Crush Washers for SUV, Truck, RV and More (12mm)

Keep your engine oil secure with these 25PCS M12 Car Oil Drain Plug Gaskets. Made from high-quality rubber, they ensure a tight seal and prevent leaks. Perfect for DIY enthusiasts and professionals alike.

These gaskets fit most vehicles, including Buick, Isuzu, and Saturn, and are easy to install. With 25 pieces, you’ll always have extras on hand for future replacements.

10. GM Genuine Parts 251-663 (12630223) Water Pump Gasket

The GM Genuine Parts 251-663 (12630223) Water Pump Gasket is a reliable replacement part for your GM vehicle. It is designed to match the original factory component, ensuring a perfect fit.

This gasket is made from high-quality materials, either fiber or rubberized composite, to provide durability and long-lasting performance. It meets GM’s strict standards, so you can trust its quality and reliability.

Easy to install, fits like the original, and keeps your engine running smoothly.