YTM 12V/11T/1.2KW starter motor 661564015/3A61174010/185086291/185086410 for Shibaura 3-Cylinder replacement parts

The YTM 12V/11T/1.2KW starter motor (part numbers 661564015, 3A61174010, 185086291, 185086410) is a direct-fit replacement unit engineered for Shibaura 3-cylinder engines. Built to OEM specifications, it delivers reliable cold-start performance and long service life in construction machinery and industrial applications.

Every YTM starter motor is developed to original equipment standards. Installation dimensions and internal components are produced on OEM-standard machining centers, ensuring full interchangeability with the original part.

• Grease: Gearbox and drive gear use German-imported lubricating oil rated to military high/low temperature standards (−50°C to 230°C).
• Bearings: Domestic first-tier brand deep groove ball bearings combined with INA needle roller bearings imported from the United States.
• Copper: Stator coil bare copper wire and armature pure copper enameled wire meet international OEM standards, withstanding temperatures up to 230°C.
• Steel: Stator casing made from fine-drawn seamless steel tube; drive gear produced via 20# steel cold chamber forging process.
• Aluminum: All aluminum components manufactured from international-standard ADC12 alloy.
• One-Way Gear: Songer system standard quality for dependable engagement.
• Relay: Taiwan Songer imported relay with integrated chip to prevent burning.
• Generator Core: Silicon steel sheet construction for effective magnetic field performance.
• Enameled Wire: F-grade 180°C high-temperature wire sourced from major domestic manufacturers (Xiandeng, Great Wall).
• Insulation Material: 350°C high-temperature resistance with inner fiber and outer rubber hose, insulating paper, and Valeo unified parameter platform.
• Rotor: Claw pole and rigid ring design; brushless motors add magnetic steel to improve low-speed performance through technological innovation.
• Electronic Components: Supplied by four major domestic manufacturers (Xuzhou Yunyi, Xuzhou Xiangyue, Ningbo Chewang, Shanghai Changbo).
• Testing: 100% production, warehouse, and factory testing. Each motor is validated on OEM-standard "DV" testing equipment provided by the DV testing platform company of North America, Canada.

Founded in 2008, Yute Motor specializes in the production of starter motors and alternators. The company operates a production workshop exceeding 20,000 square meters, equipped with advanced machinery including high-precision CNC machining centers, CNC lathes, automatic rotor spot welding machines, CNC milling machines, on-site foaming machines, modern automatic production lines, and automatic insulation treatment equipment. Annual output value exceeds 200,000 units.

After more than 14 years of continuous development, Yute has become a pioneer in the construction machinery industry. Its products have successively passed ISO9001:2000, QS-9000, and ISO/TS16949 certifications. Yute motor series have reached the international advanced level, and the company maintains a year-round leading sales volume in construction machinery applications such as excavators and heavy trucks.