Apex AMS3912 Fuel Injection Plenum Gasket Set - Upper

Fuel Injection Plenum Gasket Set for GM V8 Applications

The Apex AMS3912 fuel injection plenum gasket set is a direct-fit sealing solution for upper intake service on a wide range of GM trucks, SUVs, and commercial vehicles. It is built for applications where a reliable seal between the plenum and intake components is critical to maintaining proper engine performance.

Key Features

• Fuel injection plenum gasket set for upper intake sealing
• Fits a broad range of Chevrolet, GMC, and Hummer applications
• Designed for upper-position service on 1992-2004 vehicles
• Applies to popular platforms such as Chevrolet C1500, GMC Yukon, and Hummer H1
• Part number AMS3912 for ordering and reference

Detailed Description

Apex AMS3912 is a fuel injection plenum gasket set used in upper intake sealing applications across multiple GM platforms. It is listed for vehicles including the 1992-2000 Chevrolet C2500, 1994-1998 GMC K1500, 1995-1999 Chevrolet Tahoe, 1994-1997 GMC C1500, and 2002-2004 Hummer H1. The part number AMS3912 is also a useful reference when matching service parts for upper intake work on Chevrolet C1500 Suburban, GMC Savana 3500, and related models.

Common Problems It Can Address

• Upper intake vacuum leaks
• Rough idle caused by sealing loss at the plenum
• Air leakage around the fuel injection plenum
• Driveability issues tied to worn intake gaskets
• Service replacement during intake manifold repair

Installation Notes and Tips

Verify engine and intake configuration before installation, since fitment is listed by year, make, model, and upper position. Clean all mating surfaces thoroughly and inspect the intake components for warpage or damage before installing the new gasket set. Confirm the application against the vehicle listing for Chevrolet C2500, GMC K2500, and other supported GM platforms before final assembly.

Quality Assurance

Apex AMS3912 is cataloged as an automotive sealing component for upper intake service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.