Joworthy fuel injection plenum intake gasket for Chevy K1500 K-series 1996–2002 — one-piece, heat-resistant with O-rings

Joworthy MS 90269 is a one-piece fuel injection plenum intake gasket kit engineered to replace the original gasket on compatible Chevy and GMC 1996–2002 trucks and vans.

When an intake plenum gasket begins to leak, drivability and fuel economy can suffer. This aftermarket gasket kit from Joworthy supplies the heat-resistant sealing surfaces and O-rings needed to restore a tight seal between the plenum and intake manifold on a range of Chevrolet and GMC models. The kit is built to match factory dimensions so installation uses the original mounting points and hardware (where applicable).

Which vehicles will this MS 90269 plenum gasket fit?

This gasket kit covers many GM light trucks and vans produced in the late 1990s and early 2000s. It includes fitment for C/K pickup, Suburban, Tahoe, Express vans, and several heavy-duty variants—verify your VIN and engine code before purchase.

• Chevy C1500/C2500/C3500 and K1500/K2500/K3500 (1996–2000/2002 depending on model)
• Suburban and Tahoe models (1996–2000)
• Express 1500/2500/3500 and P30 vans (1996–2002)
• Designed to replace factory MS 90269-style plenum gaskets

How does the Joworthy gasket improve fuel system reliability?

The kit is made from durable, heat-resistant materials that maintain a secure seal under thermal cycling. A proper seal reduces the risk of vacuum leaks and unmetered air, helping the engine run more consistently and limiting fuel trim corrections.

• Heat-tolerant gasket material resists warping and breakdown
• Included O-rings prevent injector or port leaks
• One-piece design simplifies alignment during installation
• Quality control aims to match original mounting geometry

What do I need to know for installation?

Installation is straightforward for anyone comfortable removing the intake plenum and fuel rail. Clean contact surfaces thoroughly and follow torque specs for fasteners; replace damaged bolts and inspect related seals while you have access.

• Requires plenum and fuel rail removal—basic mechanical skills recommended
• Clean mating surfaces of old gasket material and debris before assembly
• Use correct torque sequence to avoid warping the plenum
• Inspect injectors and hoses while the plenum is off

How does this aftermarket kit compare to OEM parts?

Joworthy supplies an aftermarket alternative designed to meet or closely match factory fit and function at a lower price point. It’s sold as a full gasket set intended to restore sealing performance without replacing the entire intake assembly.

• Aftermarket replacement manufactured to match OEM dimensions
• Cost-effective option for routine maintenance or repair jobs
• Includes heat-resistant materials and O-rings for a complete seal
• Not affiliated with or endorsed by original vehicle manufacturers

Who is this for? If you own a compatible Chevy or GMC pickup, Suburban, Tahoe, Express van, or similar 1996–2002 model and you’re experiencing vacuum leaks, rough idle, or suspect a deteriorating plenum seal, this Joworthy MS 90269 gasket kit provides a practical repair option. It’s aimed at DIY mechanics, independent shops, and fleet managers who need a reliable, ready-to-install sealing solution without the OEM price premium. Always confirm vehicle fitment before ordering and follow safe procedures during installation.