Boatrip Starter Gear 14-Tooth Steel Replacement for Briggs & Stratton — Hardened OEM-Compatible

Boatrip 5777 is a 14-tooth steel starter gear designed as a direct-fit replacement for select Briggs & Stratton, Craftsman, John Deere and Cub Cadet small engine starters.

This heavy-duty steel starter gear (model 5777) gives a reliable, OEM-compatible replacement for worn or damaged starter drive gears on a range of lawn tractor and small-engine applications. Made with hardened steel and produced under an IATF/ISO-quality process, it’s engineered to match the tooth count, pitch and bore tolerances needed for smooth engagement with starter pinions and flywheels.

Will this gear fit my engine model?

Compatibility depends on tooth count, shaft bore and overall geometry. The Boatrip 5777 is a 14-tooth gear made to replace part numbers such as Briggs & Stratton 593934, 693551, LG693551 and OEM references used by Craftsman, John Deere L100/D105 and Cub Cadet LT1018 models with compatible HP ranges.

• 14 teeth, steel construction matching common starter drives
• Intended for specific Briggs & Stratton-compatible starter assemblies
• Cross-references: 593934, 693551, LG693551 and similar OEM numbers
• Verify bore size and keyway before ordering for a correct fit

How durable is this replacement gear?

The gear is manufactured from hardened steel and produced in a factory certified to IATF 16949 standards, which controls material traceability and dimensional accuracy. That combination delivers improved wear resistance versus softer cast parts, helping extend starter life under normal use.

• Hardened steel for superior wear resistance
• Precision machining for accurate tooth profile and engagement
• Manufactured under automotive-grade quality systems
• Backed by a 2-year limited warranty for added confidence

How easy is installation and what tools do I need?

Installation is straightforward for mechanically minded owners: remove the starter from the engine, separate the old drive gear from the starter shaft, press or slide the new gear into place and reassemble. Basic tools and a press or mallet with protective sleeves are usually sufficient; some applications require removing a retaining clip or circlip.

• Starter removal typically requires socket set and pliers
• Press or gentle hammering (with protector) to seat the gear
• Confirm keyway alignment and any retaining clips are secure
• Check starter engagement on bench before reinstalling

What specifications and performance should I expect?

The 5777 gear is built to match OEM geometric and material expectations so the starter engages cleanly and transfers torque reliably. It’s suitable for a range of small engines commonly used in lawn tractors and residential mowers within the indicated horsepower brackets.

• 14-tooth configuration with OEM-style pitch
• Steel construction for consistent torque transfer
• Precision bore for tight fit and minimal slop
• Intended for 14.5–19 HP engines referenced by OEM cross-listings

Who is this for? The Boatrip 5777 steel starter gear is aimed at DIY mechanics, lawn and garden equipment repair shops, and fleet-maintenance technicians who need a durable, exact-fit replacement for worn starter drive gears on compatible Briggs & Stratton, Craftsman, John Deere and Cub Cadet engines. If you replace parts yourself and you need a hardened, precision-cut gear with OEM-style dimensions and a factory-backed warranty, this part is designed for your use. Always confirm part numbers, tooth count and shaft dimensions before purchasing to ensure proper fitment.