1-1/4 OD x 3/4 ID Alum V/C Rubber Grommets (2)

The 1-1/4 OD x 3/4 ID Alum V/C Rubber Grommets are precision isolation components designed for serious engine builders and performance mechanics working on custom valve cover modifications, intake manifold sealing, and vacuum line routing. These grommets serve as vibration dampeners and weather seals in high-vibration engine compartments, protecting hose lines and fittings from chafing while maintaining optimal fluid or vacuum integrity. Whether you're assembling a stroker motor, upgrading emissions equipment, or fabricating a custom intake setup, these aluminum-core rubber grommets provide the engineered support your build demands.

Constructed with a durable rubber outer sleeve bonded to an aluminum inner core, the 1-1/4 inch outer diameter and 3/4 inch inner diameter design accommodates standard vacuum and coolant hose fittings while the aluminum reinforcement prevents compression under engine bay heat and vibration stress. The rubber material resists fuel, oil, and coolant degradation—critical for long-term reliability in modified engine compartments where stock grommets fail prematurely. Racing Power Co-Packaged engineering ensures consistent wall thickness and bore tolerances, delivering repeatable fitment across multiple installations on your fleet or build projects.

Professional installers and shade-tree fabricators alike depend on these grommets when securing valve cover breather hoses, PCV lines, and custom vacuum distribution on LS swaps, carburetor conversions, and fuel injection retrofits. The two-pack quantity supports typical single-engine builds or provides spares for multi-project shops. Install by inserting hose or line stock through the 3/4 inch ID bore and mounting the grommet body to frame, firewall, or manifold using standard fasteners—no special tools required. Compatible with virtually any naturally aspirated or boosted engine platform requiring isolated hose routing and vibration control.