Quadrajet Choke Thermo stat

The Quadrajet choke thermostat by JET PERFORMANCE is an electric choke control system designed for classic and high-performance Quadrajet carburetors. This thermostat regulates choke operation through precise temperature sensing, eliminating the unpredictable behavior of mechanical choke systems and delivering consistent cold-start performance. Built for enthusiasts and builders who demand reliable engine startup in varying climates, the Quadrajet choke thermostat transforms cold-weather driveability on street rods, muscle cars, and vintage performance builds.

This electric thermostat leverages thermostatic sensing to automatically adjust choke richness as engine temperature rises, replacing the guesswork of stock mechanical designs. The system includes all necessary wiring harnesses and connectors for straightforward integration into existing Quadrajet installations. By maintaining optimized fuel mixture during warm-up cycles, the thermostat reduces stumbling, hesitation, and excess fuel consumption—critical advantages when tuning Quadrajets for consistent street or strip performance. The compact design fits within standard engine bay constraints while delivering repeatable, tuned choke operation across a wide ambient temperature range.

Quadrajet owners upgrading from worn mechanical choke systems benefit most from this thermostat, particularly those running perceived fuel-sensitive builds or operating vehicles in cold climates. Installation is straightforward on any Quadrajet four-barrel carburetor, and the included wiring simplifies integration into 12-volt systems. Weighing just 0.23 lbs and fitting compact dimensions, the unit handles year-round driving without sacrificing under-hood real estate. This is an essential upgrade for restorers and performance builders seeking reliable, repeatable cold-start behavior and refined part-throttle response.