Viton Needle & Seat - .120

The Viton Needle & Seat - .120 from QUICK FUEL TECHNOLOGY is a precision fuel bowl assembly component engineered for carbureted and fuel-injected performance engines. Whether you're rebuilding a classic muscle car, restoring a street rod, or maintaining high-performance race equipment, this needle and seat set ensures crisp fuel metering and consistent carburetor operation. Fuel delivery consistency directly impacts cold starts, idle quality, and throttle response, making this component essential for anyone serious about engine tuning.

This needle and seat assembly features Viton construction, a fluoroelastomer material that resists ethanol-blended fuels and delivers superior durability compared to traditional rubber materials. The .120-inch orifice size is calibrated for specific fuel flow demands and carburetor designs, providing precise metering to prevent flooding, fuel starvation, or stumbling during acceleration. Viton's chemical resistance ensures the sealing surfaces remain intact over extended service intervals, even in high-heat engine bay environments or when stored long-term with fuel present.

Mechanics and engine builders rely on QUICK FUEL TECHNOLOGY needle and seat kits when refreshing carburetor internals or addressing persistent lean-condition issues. Installation requires draining the fuel bowl and removing the existing seat assembly—a straightforward task that delivers immediate improvement in fuel consistency and engine drivability. Verify your carburetor model and fuel bowl specification before ordering to ensure proper fitment; this .120-inch specification is compatible with most vintage and modern four-barrel and two-barrel designs that call for standard orifice sizing.