A-Premium Lower Intake Manifold Gasket Set for GM V8 4.8/5.3/6.0/6.2L — OEM Fit, Heat-Resistant Composite

A-Premium lower intake manifold gasket set seals the intake manifold to the cylinder heads for OHV 8-cylinder 4.8, 5.3, 6.0 and 6.2L GM engines, restoring proper air sealing and engine performance.

This comprehensive gasket kit is engineered to match OEM fit and function for a wide range of Chevrolet, GMC, Cadillac, Hummer, Saab and select commercial vehicles. Built from durable composite materials, the set resists heat, pressure and fuel vapor corrosion while providing a reliable seal where the lower intake manifold meets the engine. The kit includes the correct parts referenced to common OEM numbers to simplify replacement and reduce installation time.

How does this gasket set improve engine operation?

Replacing a worn or leaking lower intake manifold gasket restores the intended air and vacuum pathways, which helps the engine run smoothly and reduces rough idle or drivability issues caused by leaks. The OEM-compatible materials maintain a consistent seal under repeated thermal cycling.

• Precisely cut sealing surfaces to prevent air and vacuum leaks.
• Composite formulation resists heat and gas corrosion for longevity.
• Matches common OEM reference numbers for accurate fitment.
• Helps maintain proper engine vacuum and sensor readings.

Which vehicles and engines will this gasket kit fit?

This A-Premium set is designed for many GM 8-cylinder OHV applications including Chevrolet Silverado/Tahoe/Suburban, GMC Sierra/Yukon, Cadillac Escalade, Hummer H2/H3 and several more models across model years primarily from the early 2000s through mid 2010s. Always cross-check compatibility with your vehicle's year, engine displacement and OEM reference numbers before ordering.

• Fits 4.8L, 5.3L, 6.0L and 6.2L OHV V8 GM engines.
• Compatible with Chevy, GMC, Cadillac, Hummer, Saab and Workhorse models listed in product details.
• Cross-references MS92211, 25356659, 89017589 and other OEM numbers.
• Check vehicle-specific listings to confirm year and model fitment.

What makes this A-Premium gasket set durable and reliable?

The set uses a high-grade composite material engineered to withstand elevated temperatures, constant pressure and exposure to fuel vapors and coolant. Manufacturing tolerances follow OEM expectations so the parts align cleanly during installation and resist deformation over time.

• Composite material for high-temperature resilience and corrosion resistance.
• Designed to meet or emulate OEM sealing dimensions and thicknesses.
• Maintains seal integrity through repeated heating and cooling cycles.
• Sold as a complete lower intake manifold seal kit for correct replacement parts.

How easy is installation and what should I prepare?

Installation follows standard intake manifold replacement procedures. While the gasket kit is designed for direct fit, competent mechanical experience and the proper tools are recommended. Replace associated seals and clean mating surfaces for the best long-term result.

• Requires intake manifold removal—allow time and follow repair manual torque specs.
• Clean and inspect cylinder head and manifold mating surfaces before fitting.
• Use correct torque sequence and values; replace any damaged bolts or fasteners.
• Consider replacing related gaskets or seals simultaneously for complete repair.

Who is this for: This A-Premium lower intake manifold gasket set is intended for professional mechanics, DIY enthusiasts and fleet maintenance teams working on GM small-block OHV V8 engines from the compatible vehicle list. It’s especially useful for anyone diagnosing vacuum leaks, rough idle or coolant/fuel seepage around the intake area and who wants an OEM-style replacement that simplifies installation and restores proper engine sealing.