Skip to product information
12V Starter Motor 129698-77010 129608-77011 For Komatsu PC20R-8 PC27R-8 PC35R-8

12V Starter Motor 129698-77010 129608-77011 For Komatsu PC20R-8 PC27R-8 PC35R-8

Write A Review
Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$213.99
Sale price  $213.99 Regular price 

Available to Order

Usually ships in 2–4 business days.
Designed for compatible Komatsu equipment, this aftermarket starter motor helps restore strong, dependable engine cranking.
Shop at Northline Parts Best Customer Service Best Online Parts

Not sure which part fits your equipment?

Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7

Call us

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Product Overview

The starter motor turns the engine during startup. Slow cranking, clicking, intermittent engagement, or no rotation can result from a worn starter as well as battery, cable, relay, or ground problems.

Replacement references include 129698-77010 and 129608-77011. Match the part number, voltage, tooth count, power rating, rotation, mounting flange, and terminal location with your original part.

Key Features & Performance

  • Restores engine-cranking power
  • Designed for compatible flywheel and mounting arrangements
  • 12V design for compatible electrical systems
  • Practical replacement for a worn starter

Fitment & Compatibility

Compatible with select Komatsu PC20R-8 PC27R-8 PC35R-8 applications. Serial-number breaks, production changes, or equipment options may affect the required part.

Technical Specifications

  • Product Type: Starter Motor
  • Compatible Brand: Komatsu
  • Part Number(s): 129698-77010, 129608-77011
  • Voltage: 12V

Frequently Asked Questions

Q: How do I confirm the correct starter motor? A: Match the voltage, tooth count, rotation, mounting pattern, electrical terminals, and original part number.

Q: Is this an original OEM part? A: This is a high-quality aftermarket replacement and is not supplied by the original equipment manufacturer.

Confirm the original part number and physical configuration before ordering, especially when multiple versions were used.

Customers also purchased

Keywords (Used as search references only) View IP policy.