KIKITE 799584 Carburetor Compatible with Briggs and Stratton 550EX 625EX 675EX 725EXi 09P702 103M02 TB110 TB200 LC121P Lawn Mower Engine replace 594058 594057 592361 594529 Lawnmower Carburetor

What It Is

This is an aftermarket carburetor assembly designed to replace the stock carb on Briggs & Stratton 550EX, 625EX, 675EX, and 725EXi engines (and compatible models like 09P702, 103M02). It’s intended for walk-behind lawn mowers, typically 20-22 inch deck sizes, where the original carb becomes clogged, leaks, or fails to deliver fuel.

Fitment & Compatibility

Before buying, check your engine’s model number (stamped on the blower housing or valve cover). This carb fits:

• Briggs & Stratton engines: 550EX, 625EX, 675EX, 725EXi, 09P702, 103M02
• Common mower brands: Troy-Bilt TB110, TB200, Craftsman, Cub Cadet LC121P, and others using those engines
• Replaces OEM part numbers: 594058, 594057, 592361, 594529

What to verify:

• Engine model, not mower brand – a Husqvarna may use the same B&S engine.
• Fuel line size – some mowers use 1/4-inch lines; this carb uses standard 5/16-inch. You may need an adapter or new line.
• Throttle/governor linkage – check that your existing linkage pattern matches the carb’s arm (most do, but older models vary).
• Gasket and air filter – the kit includes new gaskets, but you may need to reuse or replace the air filter separately.

Key Things to Know

• Quality is decent for the price – users report it runs well after a simple bench tune (idle screw adjustment). Not OEM-level, but functional.
• Installation is moderate – expect 20-40 minutes. You’ll need small screwdrivers, pliers, and possibly a fuel line clamp. No special tools.
• Common gotcha: fuel line compatibility – the carb’s inlet is 5/16 inch. If your mower uses 1/4-inch line, you’ll need to swap the line or use a reducer.
• May require minor adjustments – the idle speed screw is preset but may need tweaking. A lean/rich mix screw is also present (usually 1.5 turns out as baseline).
• Check for debris in the fuel tank – old gas often clogs the new carb. Clean the tank and replace the fuel filter if present.

Should You Buy It

If your B&S 550EX–725EXi engine has a failing carb (hard start, surging, leaking) and you want a budget fix that usually works, this is a solid choice. It’s not a long-term OEM replacement, but for $20 and a half-hour install, it’s a practical solution for DIY mower owners who don’t want to rebuild the original. Skip it if you need exact OEM fitment for a commercial mower or if your engine model isn’t listed.