591139 593959 Recoil Starter Assembly Replaces Briggs & Stratton 595355 590588 593961 Pull Start Assembly for 08P502 093J02 09P602 09P702 450E 500E 550E 550EX 125cc 140cc Engines

What It Is

This is a complete recoil starter assembly that replaces the pull-start mechanism on Briggs & Stratton engines, specifically for lawn mowers, pressure washers, and other small equipment. It’s designed for engines like the 08P502, 093J02, 09P602, 09P702, and 450E/500E/550E/550EX series (125cc–140cc).

Fitment & Compatibility

Before buying, confirm your engine model number (stamped on the engine shroud or valve cover) matches one of the listed Briggs & Stratton numbers: 08P502, 093J02, 09P602, 09P702, 450E, 500E, 550E, 550EX. This assembly replaces OEM part numbers 595355, 590588, 593961, and 591139/593959. It is an aftermarket part, not OEM Briggs & Stratton. Measure the bolt hole spacing on your old starter – this unit uses three mounting bolts on a standard 4.5-inch (114mm) bolt circle. Verify the rope length (typically 48–60 inches) and that the pulley diameter matches your existing setup. It will not fit engines with a different bolt pattern or larger displacement (e.g., 190cc or 200cc).

Key Things to Know

• Quality vs OEM: Aftermarket; may have slightly thinner plastic housing or less durable spring. Works fine for home use but may not hold up under heavy daily commercial mowing.
• Installation Difficulty: Easy for DIYers – unbolt old starter, transfer rope guide/fan if needed, bolt on new assembly. No special tools required.
• Common Gotcha: The rope may need to be fully unwound and re-tensioned after install. Also, check that the starter pawls (dogs) engage properly with the flywheel – some aftermarket units have slightly different pawl angles.
• Return Policy: Since fitment varies, buy from a seller with a clear return policy if it doesn’t match.

Should You Buy It

If you have a compatible Briggs & Stratton engine (125–140cc) and your existing recoil starter is broken, this is a budget-friendly, easy replacement for home lawn mower repairs. It’s not ideal for commercial use or high-hour equipment, but for the price, it’s a solid fix for a broken pull cord or seized spring.