Holley Carburetor Choke Thermostat
0 results found
No products match your current filters
Try the following
- Remove some filters to broaden your results.
- Clear the vehicle filter to see all available products.
- Check a different category or manufacturer.
- Browse the top categories below to find what you need.
Holley Carburetor Choke Thermostats: Genuine Parts From the Fuel System Authority
When it comes to keeping a carbureted engine starting cleanly and idling smoothly in cold conditions, the choke thermostat is an unsung hero. And there's no more trusted source for this component than Holley — the brand that has defined carburetor engineering for well over a century. Carburetor choke thermostats from Holley are purpose-built to work seamlessly with the same carburetors Holley designed and manufactured, making them the obvious choice for restoration, maintenance, and performance builds alike.
What the Choke Thermostat Does — and Why the Source Matters
The choke thermostat — commonly called an electric choke cap — houses the bimetal thermostatic coil or electric heating element that controls how long the choke plate stays closed during cold starts. A worn or damaged choke cap can cause hard starting, rough idle, excessive fuel consumption, or a choke that simply never opens fully. Using a genuine Holley replacement ensures the unit is calibrated to the exact tolerances of your carburetor, not a generic approximation.
Holley's replacement electric choke cap, part number 45-258, is the benchmark in this category. It is a direct-fit replacement for several of Holley's most popular carburetor families, including the 2300 two-barrel and the iconic 4150, 4160, 4010, and 4011 four-barrel models. It also fits Holley choke kits 45-223 and 45-224. The cap is constructed from durable ABS plastic and includes a new choke cap gasket, ensuring a proper seal right out of the box.
Built for Holley's Most Iconic Carburetors
Holley's 4150 platform is one of the most recognizable carburetors in motorsport history. Holley has been producing carburetors since 1903, and the 4150 four-barrel debuted on the 1957 Ford Thunderbird — launching the modular Holley four-barrel era that continues to this day. Whether you're maintaining a classic muscle car, a street rod, or a marine application, the choke thermostat you install should match the engineering pedigree of the carburetor it serves.
The 45-258 electric choke cap is also compatible with marine applications, making it a reliable choice for boat owners running Holley two- or four-barrel carburetors on Ford V8 engines. Its broad compatibility across Holley's carburetor lineup means a single genuine part can serve a wide range of builds — from vintage truck restorations to high-output performance street machines.
Why Choose a Genuine Holley Choke Thermostat?
- OEM-calibrated fit: Designed specifically for Holley 2300, 4150, 4160, 4010, and 4011 carburetor models
- Complete kit: Includes the replacement choke cap gasket for a leak-free installation
- Broad compatibility: Also fits Holley choke kits 45-223 and 45-224, as well as compatible marine carburetor setups
- Trusted engineering: Backed by more than 120 years of Holley fuel system expertise
- Durable materials: ABS plastic construction built to handle engine bay heat and vibration
For enthusiasts who demand that every component of their carburetor system meets the same standard as the rest of their build, Holley's carburetor choke thermostats deliver the confidence that comes from using parts engineered by the people who built the carburetor itself. Explore the full range of Holley products to find everything you need to keep your carbureted engine performing at its best.