TBI Fuel Injector Wire Grommets

Factory-Correct Reproductions for GM Throttle Body Injection (TBI) Applications

Manufactured from Black Thermoplastic Elastomer (TPE) Rubber Material

M&H's new TBI Fuel Injector Wire Grommets are designed to replace the original rubber grommets used on many GM throttle body injection systems. These grommets seal the injector harness where it passes through the throttle body housing and help prevent vacuum leaks while protecting the wiring from abrasion.

Produced using original GM engineering drawings, these factory-correct reproductions feature the proper locking groove, correct wire-hole layout, and correct durometer material to fit and function like the originals. Unlike many hard plastic or poorly reproduced alternatives, these grommets are molded from proper elastomer material for correct installation and sealing.

Correct Fit & Seal

These grommets are designed to fit the throttle body housing correctly, helping seal the injector harness opening and protect the wires from abrasion.

Three Versions Available

M&H now offers all three common GM injector wire grommet styles: 4-hole square, 4-hole straight-line, and 2-hole Cross-Fire.

Check Out These Outstanding Features

Original GM Engineering Drawings
Produced using original GM engineering drawings to ensure an accurate factory-correct reproduction.
Correct Elastomer Material
Manufactured from black thermoplastic elastomer (TPE) rubber material with proper flexibility and sealing characteristics.
Correct Durometer Hardness
Proper durometer rubber material helps the grommet install correctly, seat properly, and seal like the original GM component.
Molded Locking Groove
Each grommet features the correct molded locking groove to fit securely in the throttle body housing.
Designed for Correct Wire Size
Hole sizes are engineered for the outside diameter of the correct Tefzel fuel-resistant ETFE insulated wire used in original GM injector connectors.
Not Hard Plastic
Unlike many reproduction grommets currently available, these are molded from proper elastomer material rather than hard plastic or rigid 3D-printed substitutes.