Starter Motor for UNITED TECHNOLOGIES Lester 5726 OEM 5675640-M030SM 12V 0.6kw 10T

1. Wide Application Range

This starter motor is professionally calibrated to match 30 HP to 60 HP Mariner and Mercury outboard engines, covering mainstream models released between 1994 and 2009. It fits multiple classic series, including 30EHO, 30ELO, 40ELPTO, 40EO Jet 30, 50ELHPTO, 60ELPTO Big Foot and 60EO Jet 45, with cylinder displacements of 39.3ci, 43.9ci and 59.0ci. Whether you own a small recreational fishing boat, a daily commuter boat or a light-duty working vessel equipped with the above outboard motors, this starter serves as an ideal OEM replacement part to restore normal engine startup function. It is also fully interchangeable with dozens of cross-reference part numbers from well-known brands like WAI, Sierra Marine and Mercury Marine, bringing great convenience for parts replacement and fleet maintenance.

2. Marine-Grade Environmental Adaptability

Unlike ordinary automotive starters, this unit adopts specialized marine-grade manufacturing techniques and corrosion-resistant materials, specially optimized for harsh marine working scenarios. Its fully sealed housing effectively resists seawater splashes, salt fog erosion, high humidity and long-term engine vibration, preventing internal circuit and gear components from rusting or malfunctioning. Reinforced internal structures can withstand frequent start-stop operations and drastic temperature changes on open water, delivering stable performance during coastal sailing, offshore cruising and all-day continuous use. It greatly reduces the risk of startup failure caused by severe environments and avoids vessel stranding at sea due to starter breakdown.

3. Complete Matching Accessories & Low Maintenance Cost

To facilitate installation and daily upkeep, this starter is compatible with a full set of supporting repair parts, including starter brush kits, drive assemblies and retainer kits. All accessories follow unified industrial standards, so local marine repair shops can easily source and replace worn parts. Thanks to its solid overall construction and wear-resistant gears, the starter features an extended service life and low failure rate. Compared with expensive original factory components, it provides equivalent OEM quality at a more budget-friendly cost, cutting long-term maintenance expenses for individual boat owners and marine equipment operators.

4. Stable Power Output & Safety Performance

Rated at 12V working voltage, the motor outputs steady torque to drive the engine crankshaft quickly. The precise 10-tooth gear design ensures tight meshing with the engine flywheel, eliminating slipping, abnormal noise or hard cranking during startup. It places a reasonable load on the boat’s battery and electrical system, protecting the whole circuit from overload damage. Every unit undergoes strict factory testing before delivery to guarantee stable cold-start and hot-start performance. It works reliably in low-temperature early mornings and high-temperature summer voyages, fully meeting the safety and operational requirements of marine navigation.

5. Easy Installation & Universal Replacement