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Yamaha Starter Motors

Starter Motor for Yamaha 40HP ENDURO

SKU: MXST-0081

$415.00
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The B132 ST-0081 is a 12-volt aftermarket starter motor designed for selected Yamaha 40HP Enduro 2-stroke outboard engines. Featuring a 9-tooth drive gear, counterclockwise rotation and permanent magnet direct drive construction, it provides reliable electric starting performance. Suitable for replacing worn, damaged or faulty original starter assemblies, this replacement unit is designed for compatible Yamaha 66T-series outboards manufactured from 1998 onwards.

Key benefits

Key Benefits

  • - 12V electric starter motor for Yamaha 40HP Enduro outboards
  • - 9-tooth drive gear for starter engagement
  • - Counterclockwise (CCW) rotation
  • - Permanent Magnet Direct Drive (PMDD) design
  • - Replacement for selected Yamaha 66T-series starter assemblies
  • - Suitable for servicing and restoring electric starting systems

Specifications & Dimensions

  • - Part Number: B132
  • - Additional Reference: ST-0081
  • - Product Type: Electric Starter Motor
  • - Voltage: 12V DC
  • - Drive Gear: 9 teeth
  • - Rotation: Counterclockwise (CCW)
  • - Starter Design: Permanent Magnet Direct Drive (PMDD)
  • - Drive Gear Outside Diameter: 29 mm (1.14")
  • - Drive Gear Inside Diameter: 11.9 mm (0.47")
  • - Drive Gear Reference: 5008

Compatible Outboard Motors

  • Yamaha Outboards
  • 40HP Enduro – 2-Cylinder, 2-Stroke
  • - Yamaha 40XWT – 1998–2000
  • - Yamaha 40XWTL – 2001–2015
  • - Yamaha E40XMH – 1998–2000
  • - Yamaha 40HP Enduro / CV (66T series) – selected 1998–2018 models
  • Confirm the engine model and serial number before ordering.

Cross-Reference / Replacement Part Numbers

  • Yamaha OEM
  • - 66T-81800-01
  • - 66T-81800-02
  • - 66T-81800-03
  • - 66T-81800-04

Signs the Starter Motor Needs Replacing

  • - Engine fails to crank despite a fully charged battery
  • - Clicking noise when attempting to start
  • - Slow or intermittent engine cranking
  • - Grinding or abnormal noises during starting
  • - Starter motor overheating
  • - Worn or damaged drive gear teeth
  • - Corrosion or damage to the starter housing or electrical connections

Important Fitment Information

  • - Designed for selected Yamaha 40HP Enduro 2-cylinder, 2-stroke outboards.
  • - Confirm the original starter operates on 12V DC.
  • - Check the 9-tooth drive gear and CCW rotation.
  • - Compare the original starter against Yamaha OEM references.
  • - Verify engine model, serial number and mounting configuration.
  • - The B132 starter must not be confused with starters used on Yamaha 40HP 3-cylinder or 4-stroke models.

Shipping

Ships Australia-wide