5/16in Grommet 10pk

The 5/16in Grommet 10pk by Allstar Performance provides the reliable wire and hose routing hardware that every serious mechanic and vehicle builder keeps on hand. Whether you're fabricating custom harnesses, securing vacuum lines, or organizing brake tubing in tight engine bays, these grommets protect lines from abrasion while maintaining clean separation in high-vibration environments. Offered in a practical 10-pack, this SKU ALL 18364 ensures you have spares for multiple projects without repeated ordering.

Each 5/16-inch grommet features a robust molded design that seats firmly into drilled holes, preventing lines from shifting or chafing against sharp panel edges during engine operation and suspension articulation. The slightly oversized inner diameter accommodates standard fuel line, coolant hose, and wiring without excessive compression, reducing risk of kink failures or electrical short circuits caused by insulation wear. Allstar Performance's grommets are manufactured from durable elastomer compounds that resist oil, coolant, and heat—critical for underhood and chassis applications where chemical exposure is constant.

Professional restorers, race teams, and DIY builders benefit most from this 10-pack when completing engine swaps, fuel system upgrades, or rewiring projects where multiple penetrations require protection. Installation is straightforward—drill or use existing holes to size, then press the grommet in place until the flange seats flush against the panel. These grommets work equally well in street machines, off-road rigs, and track cars; compatibility spans all engine types and mounting locations where line management and vibration isolation matter.