A-Premium Lower Intake Manifold Gasket Set for OHV V8 4.8L/5.3L/6.0L — Graphite Composite & PA66-GF33, OEM Fit

High-strength A-Premium lower intake manifold gasket set engineered to restore a leak-free seal between the intake manifold and cylinder head on OHV V8 6.0L, 5.3L and 4.8L engines.

This A-Premium gasket kit supplies the lower-side sealing components used across a wide range of GM and related platforms from late 1990s through early 2000s. Built from a graphite composite sheet plus PA66-GF33 molded gaskets, the set is a direct replacement for OE-style parts and is packaged for convenient installation. It’s designed for technicians and DIYers who need a durable, high-temperature resistant gasket that matches OEM fitment and function for vehicles including Chevrolet, GMC, Cadillac, Hummer and Isuzu models listed below.

Which vehicles and engines will this gasket set fit?

This particular A-Premium set is made for OHV V8 engines in the 4.8L, 5.3L and 6.0L family used in many GM trucks and SUVs from 1999–2003. Confirm factory part references and engine code before purchase to ensure compatibility.

• Cadillac: Escalade 02–03, Escalade EXT 02–03, Escalade ESV 2003
• Chevrolet: Avalanche 1500 (02–03), Express vans (03 models), SSR (03), Silverado (99–03), Suburban/Tahoe (00–03), TrailBlazer EXT (03)
• GMC: Sierra 1500/2500 (99–03), Savana vans (03), Yukon/Yukon XL (00–03)
• Other: Hummer H2 (2003), Isuzu Ascender (2003)

What materials and parts are included in the package?

The kit combines a graphite composite sheet gasket with two PA66-GF33 molded gaskets to cover the lower intake sealing surfaces. Components are boxed and supplied as a direct-replacement assembly for the original lower intake seals.

• 1x graphite composite sheet lower intake manifold gasket (black)
• 2x PA66-GF33 molded intake gaskets (red/black as applicable)
• Reference numbers: MS16340 and MS92211 to match OEM cross-references
• Packaged in A-Premium branded box for shipping and storage

How does this gasket set perform under real-world conditions?

Materials were selected to tolerate intake temperatures, pressure cycles and exposure to intake gases while maintaining sealing integrity. The graphite composite and reinforced nylon (PA66-GF33) provide resistance to thermal distortion and common chemical exposure found in engine environments.

• High sealing performance to reduce intake air leakage and maintain manifold vacuum
• Heat- and corrosion-resistant construction for extended service life
• Meets OEM fitment standards for straightforward replacement and proper torque behavior

What warranty and confidence does A-Premium provide?

A-Premium backs this gasket set with a one-year unlimited-mileage guarantee and supports a broad range of automotive replacement parts. The warranty and part tracing help shops and owners feel confident when reinstalling intake components after repair.

• One-year unlimited-mileage limited warranty from A-Premium
• Quality control and packaged replacement parts for professional or DIY installation
• Broad aftermarket fitment coverage across GM and related platforms

Who is this for: This gasket set is intended for automotive technicians, independent mechanics and informed DIYers working on OHV V8 4.8L, 5.3L or 6.0L engines in late-1990s to early-2000s GM-based trucks and SUVs. Use this kit when replacing a leaking lower intake seal, during manifold removal for maintenance or when restoring proper intake manifold vacuum and engine performance. Always verify your vehicle’s VIN, engine code, and original part reference numbers (MS16340 / MS92211) before ordering to ensure exact fitment.