Carburetor for B&S 594601 796587 591736 19 19.5 20 20.5 21

High-quality TANG replacement carburetor engineered to fit Briggs & Stratton 19–21 HP Intek single-cylinder OHV engines, supplied with gasket and cleaning tools for a ready-to-install swap.

This TANG carburetor is a direct-fit aftermarket replacement designed for Craftsman riding lawn tractors and other equipment powered by B&S engines using part numbers like 594601, 796587 and 591736. Built to match OEM dimensions and flow characteristics, the unit includes a gasket and basic cleaning tools so you can restore proper fuel delivery and get your engine running smoothly again.

Will this carburetor fit my Briggs & Stratton 19–21 HP engine?

If your engine lists any of the referenced B&S part numbers (594601, 591731, 796109, 594593, 796587, 591736) or is a 19, 19.5, 20, 20.5 or 21 HP Intek single-cylinder OHV model, this TANG carburetor is made to match the mounting and throttle/linkage geometry. Verify compatibility by comparing intake flange bolt pattern and throttle/choke linkage type on your original carburetor.

• Compatible with listed B&S part numbers and Intek single-cylinder OHV engines.
• Includes gasket to match standard flange sealing dimensions.
• Designed for Nikki-style needle/seat and standard fuel inlet positions.

How will this carburetor affect engine performance?

Installed correctly, the TANG carburetor restores consistent fuel metering, which can improve throttle response, reduce hesitation and help the engine idle more smoothly. It is cast and machined to meet OEM tolerances so the engine receives predictable fuel-air mixtures across operating ranges.

• Delivers steady fuel flow for improved acceleration and steady idle.
• Optimized orifice sizing to balance fuel efficiency and power output.
• Durable construction intended to resist wear and maintain tuning longer.

What comes in the box and what tools do I need to install it?

Your purchase includes the TANG carburetor, a replacement gasket and cleaning tools to help clear passages before installation. Basic hand tools—wrenches, screwdrivers and pliers—plus a clean work area and fuel-safe container for draining lines are all you need for a typical swap.

• Included: carburetor, gasket, and small cleaning kit for jets and passages.
• Recommended: wrench set, screwdriver, carburetor cleaner, and fuel catch container.
• Installation time: most hobbyists complete the swap in 30–90 minutes.

How should I maintain and troubleshoot the new carburetor?

Keep the fuel system clean and use fresh gasoline to reduce gum and varnish buildup. If you encounter rough idle, flooding or hard starting, check the float, needle/seat and fuel inlet for blockage and confirm linkage adjustments and choke operation.

• Regularly inspect and replace fuel filters and pre-filters as needed.
• Use the supplied cleaning tools to clear jets and tiny passages during service.
• Store equipment with stabilized fuel to prevent long-term varnish issues.

Who is this for: The TANG carburetor is intended for DIY mechanics, small-engine repair shops and lawn equipment owners who need a reliable replacement for Briggs & Stratton 19–21 HP Intek single-cylinder OHV engines. It suits anyone restoring performance on Craftsman riding mowers, tractors or similar equipment and who wants a part manufactured to OEM-style specifications with a basic warranty and included installation supplies.