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WAI 18178N 12V 2.0kW OSGR Starter Motor 15-Tooth Pinion CW Rotation

Manufacturer

Picture for manufacturer WAI Distributors/Wiper Motors

Part Number

18178N
6 reviews
Sale Price

$133.56

1 left at this price

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Usually delivered within 2 days

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Product Details

The WAI 18178N is a new, 12-volt, 2.0kW OSGR (Off-Set Gear Reduction) starter motor featuring clockwise rotation and a 15-tooth pinion gear. Engineered to OE specifications, this starter delivers reliable cranking power for Yanmar diesel engines used in industrial, agricultural, and compact utility applications.

Built to WAI's quality standards, this starter is a direct-fit replacement for the original Denso unit and crosses to multiple OEM and aftermarket part numbers, making it a trusted choice for professional technicians and equipment owners alike.

Key Specifications:

  • Voltage: 12V
  • Power Output: 2.0 kW
  • Rotation: Clockwise (CW)
  • Pinion Teeth: 15
  • Starter Type: OSGR (Off-Set Gear Reduction)
  • Pinion Gear OD: 1.728 in / 43.9 mm
  • Mounting Ear Holes: 13.5mm Unthreaded
  • Bolt Style: External Through-Bolts
  • B+ Terminal: M8-1.25 Threaded
  • Switch Terminal: Female Blade

OEM & Cross-Reference Part Numbers:

  • Denso: 128000-7300, 128000-7301, 228000-7110, 228000-7111
  • Yanmar: 129429-77010, YM129429-77010, 121254-77010, 171058-77010
  • John Deere: AM877284, MIA10300, TY25235
  • Lester: 18178
  • Arrowhead: SND0399
  • Cargo: 110485

The WAI 18178N is backed by WAI's commitment to quality and is an ideal replacement for worn or failed starters on Yanmar 4TN82 and 4TN84 diesel engines found in compact tractors, skid steers, and industrial equipment.

The turbo (s475sx-e) has been my best purchase this year. The order was placed at the end of the workday and Thmotorsports shipped it the very next morning, also the box arrived in magnificent condition, the turbo was picture perfect without a blemish. Thmotorsports was the most affordable out of all ten sites that were considered, with top notch shipping. I have to say Thmotorsports was the best choice for my genuine part.

Your online system would not allow me to put my Alaska address for billing, even though the order was to be shipped to Texas. I sent repeated emails requesting a phone call and no one would call me or provide me a number to call.

I am satisfied with the delivery.

Quick & easy checkout

Very good!

The website was easy to navigate and your facility was the only one that had the product.

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