5/16in Grommet 10pk

The 5/16in Grommet 10pk by Allstar Performance is essential for mechanics and vehicle builders who require reliable hardware for wire and hose routing. These grommets are ideal for fabricating custom harnesses, securing vacuum lines, and organizing brake tubing in tight engine bays. They protect lines from abrasion and maintain clean separation in high-vibration environments.

Each grommet features a robust molded design that fits securely into drilled holes, preventing lines from shifting or chafing against sharp edges during engine operation. The slightly oversized inner diameter accommodates standard fuel lines, coolant hoses, and wiring without excessive compression, which helps reduce the risk of kink failures or electrical shorts. Made from durable elastomer compounds, these grommets resist oil, coolant, and heat, making them suitable for underhood and chassis applications.

Professional restorers, race teams, and DIY builders will find this 10-pack particularly beneficial for engine swaps, fuel system upgrades, or rewiring projects that require multiple penetrations. Installation is straightforward—simply drill or use existing holes, then press the grommet in place until the flange seats flush against the panel.