2 MULE TEAM Exhaust Manifold Gasket Set for GM LS Engines — 2 Gaskets & 12 Bolts, Direct-Fit Leak Repair

2 MULE TEAM Exhaust Manifold Gasket Set (12617944) is a complete replacement kit that restores a sealed, vibration-resistant exhaust connection on compatible GM LS engines.

If your Silverado, Sierra, Suburban, Yukon, Escalade or CTS with an LS-series engine is showing exhaust leaks, ticking noises near the manifold, or reduced engine smoothness, this kit offers a direct-fit solution. The set contains two precision-cut gaskets plus the necessary bolts, engineered to match OEM form and function for part numbers 12617944 and 12600530. Built from durable materials and produced with professional equipment, these gaskets help re-establish a tight exhaust seal while resisting heat and corrosion typical of exhaust manifold applications.

How do these gaskets address exhaust leaks and manifold noise?

Worn or damaged manifold gaskets allow exhaust gases to escape where the manifold meets the cylinder head, creating audible ticking and sometimes performance symptoms. Replacing the gaskets with a matching set restores the sealed joint and reduces heat transfer to surrounding components. Proper torque on the included bolts prevents future leaks from vibration or thermal cycling.

• Direct-fit replacement for GM part numbers 12617944 and 12600530
• Includes 2 gaskets sized for LS engine flange dimensions
• 12 bolts supplied to replace corroded or stretched fasteners
• Material choice minimizes compression set and blowout risk

Which vehicles and engines will this gasket set fit?

This kit is designed for a broad range of GM LS-series engines (excluding the LS7) found in many trucks and SUVs. It fits LS-family variants like LM7, LQ4, L33 and numerous others listed in compatibility notes, and works with model applications such as Silverado 1500/2500HD, Sierra, Suburban, Yukon, Escalade and CTS when those engines are specified. Always verify fit using your vehicle’s year, engine code and original part number.

• Compatible with many LS engines: LM7, LQ4, L33 and others (not LS7)
• Fits GM trucks and SUVs: Silverado, Sierra, Suburban, Yukon, Escalade, CTS
• Cross-references OEM numbers 12617944 and 12600530 for confirmation

What’s included and what should I expect during installation?

The package contains two exhaust manifold gaskets and twelve bolts — enough to replace both sides and secure the manifold properly. Installation requires standard hand tools and care to clean mating surfaces; replacing corroded or warped bolts is recommended for achieving correct torque and long-term sealing. If manifold studs are damaged or cylinder head surfaces are warped, additional repair steps may be necessary.

• Included: 2 exhaust manifold gaskets + 12 mounting bolts
• Preparation: clean head and manifold mating surfaces before install
• Tools: torque wrench recommended to meet manufacturer specs
• Inspection: check studs/threads and manifold flatness for best results

How durable are these gaskets and what materials are used?

Manufactured using quality materials and professional production methods, the gaskets are made to resist high temperatures and corrosion common in exhaust systems. Their construction aims to maintain a reliable seal through thermal expansion and contraction cycles, reducing the chance of recurring leaks. Longevity depends on correct installation and the condition of surrounding components.

• Engineered for heat resistance and reduced compression set
• Produced with precision equipment for consistent flange fit
• 12 bolts replace aged fasteners to improve clamping reliability

Who is this for: Technically minded DIYers, professional mechanics and fleet technicians who maintain GM vehicles with LS-family engines will benefit from this kit. It’s suitable when you need a direct OEM-replacement gasket set to stop exhaust leaks, replace corroded manifold hardware, or complete a manifold service on Silverado, Sierra, Suburban, Yukon, Escalade and similar models. Check engine code and OEM part numbers before purchase to ensure compatibility.