Dorman Choke / Throttle Conversion Kit

Dorman Choke & Throttle Conversion Kits: Practical Solutions for Carbureted Engines

For anyone working on a carbureted engine with a worn-out, broken, or troublesome automatic choke system, Dorman offers a straightforward and cost-effective answer: their line of Choke / Throttle Conversion Kits. Rather than hunting down a full carburetor replacement or sourcing hard-to-find OEM components, these kits let you restore proper choke and throttle function using a complete, all-in-one hardware solution.

What Dorman’s Conversion Kits Do

Automatic choke mechanisms were standard equipment on countless carbureted cars and trucks for decades — but they are also a common failure point. Springs, wires, sensors, and vacuum tubes all contribute to a system that can degrade over time. Dorman’s approach is to eliminate that complexity entirely. Their choke conversion kits replace the automatic choke mechanism with a simple, cable-actuated manual choke, giving the driver direct control from a dash-mounted knob: pull it to close the choke plate for cold starts, push it back in once the engine warms up.

Beyond choke conversion, Dorman also offers throttle conversion kits designed to address broken or damaged throttle cables without requiring a full throttle assembly replacement. As Dorman describes it, the kits are engineered to “eliminate the need to replace the whole throttle assembly or choke system on the carburetor,” saving significant time and labor.

Key Product Lines & Features

Dorman carries multiple SKUs in this category to cover a range of applications and needs, sold under their well-known HELP! product line — a brand umbrella long associated with hard-to-find automotive hardware and repair components. Notable offerings include:

• Part #55101 – Choke Conversion Kit: A versatile universal kit that includes an extra-long manual choke cable with a pull knob, a cable support bracket, a choke knob mounting bracket, choke cover caps in two sizes, a choke plate actuating fork, and a variety of adapters to accommodate most common carburetor designs. Designed to preserve fast idle functionality when installed correctly.
• Part #55104 – Heavy-Duty Choke Conversion Kit: A more robust version of the standard kit, built for applications demanding greater durability. Constructed of high-quality materials and includes all necessary hardware for a complete repair.
• Part #03787 – Throttle Conversion Kit: Targeted at repairing broken or faulty throttle cables, this kit restores throttle function without requiring replacement of the entire throttle assembly.

Why Choose Dorman for This Application?

Dorman has been a fixture in the automotive aftermarket since 1918, and their HELP! line built its reputation precisely on solving the kind of small-but-critical hardware problems that other brands overlooked. For choke and throttle work — a niche that sits squarely in Dorman’s traditional sweet spot of automotive hardware and mechanical repair components — their kits deliver the broad compatibility and complete hardware inclusion that DIYers and professional installers need. Each kit is designed and manufactured to strict specifications, and Dorman backs their products with a dedicated team of product experts based in the United States.

Whether you’re converting an old muscle car’s automatic choke to a cleaner manual setup, or simply repairing a snapped throttle cable on a classic truck, browse the full selection of Dorman Choke / Throttle Conversion Kits to find the right fit for your application.