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Yamaha Starter Motors

Starter Motor for Yamaha 8-50HP

SKU: MXST-0143

$485.00
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The HIT131 is a 12-volt aftermarket replacement starter motor designed for selected 8HP to 50HP 4-stroke outboard engines. Featuring an 11-tooth drive gear with a 33.1mm pinion diameter, this starter provides dependable engine cranking and reliable electric starting performance. Suitable for replacing worn, damaged or faulty original starter assemblies, it offers a practical replacement for compatible outboard motors requiring the correct mounting configuration.

Key benefits

Key Benefits

  • - 12V electric starter motor
  • - 11-tooth drive gear
  • - 33.1mm pinion outside diameter
  • - Suitable for selected 8HP–50HP 4-stroke outboards
  • - Two unthreaded 8.6mm mounting holes
  • - Aftermarket replacement for original starter assemblies
  • - Suitable for outboard servicing and repairs

Specifications & Dimensions

  • - Part Number: HIT131
  • - Additional Reference: ST-0143
  • - Product Type: Electric Starter Motor
  • - Voltage: 12V DC
  • - Drive Gear Teeth: 11
  • - Pinion Outside Diameter: 33.1mm (1.303")
  • - Mounting Hole 1: 8.6mm (0.339") internal diameter, unthreaded
  • - Mounting Hole 2: 8.6mm (0.339") internal diameter, unthreaded
  • - Approximate Gross Weight: 1.87kg (4.12lb)
  • - Engine Type: 4-Stroke

Compatible Outboard Motors

  • Yamaha 4-Stroke Outboards
  • - Yamaha F8 – 8HP
  • - Yamaha F9.9 – 9.9HP
  • - Yamaha F25 – 25HP
  • - Yamaha F30 – 30HP
  • - Yamaha F40 – 40HP
  • - Yamaha F50 – 50HP
  • The above horsepower applications are based on the supplied product information. Exact engine models and production years require verification against the original starter part number.

Cross-Reference / Replacement Part Numbers

  • OEM References
  • - 6G8-81800-11
  • - 68T-81800-00
  • - 6F5-81800-10
  • - 6F5-81800-11
  • - 6J4-81800-01

Signs the Starter Motor Needs Replacing

  • - Engine fails to crank despite a fully charged battery
  • - Clicking noise when turning the ignition key
  • - Slow or intermittent engine cranking
  • - Grinding or unusual noises during starting
  • - Excessive heat from the starter motor
  • - Worn or damaged starter drive gear
  • - Corroded electrical terminals

Important Fitment Information

  • - Confirm 12V electrical operation.
  • - Verify the 11-tooth drive gear.
  • - Check the 33.1mm pinion outside diameter.
  • - Confirm both 8.6mm unthreaded mounting holes.
  • - Compare the original starter against the listed OEM replacement numbers.
  • - Verify the engine model, year and serial number.
  • - Confirm rotation direction and mounting centres before installation.

Shipping

Ships Australia-wide