Komatsu Engine Stopper Pinion KD1-23181-0020

Komatsu Engine Stopper Pinion KD1-23181-0020 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number KD1-23181-0020 is listed as Stopper Pinion. Search also by the no-dash alternate number KD1231810020.

Engine book references

This part appears in Komatsu engine parts book paths such as:

• ENGINES / S6D105-1AH S/N 94066-UP / ELECTRICAL SYSTEM / STARTING MOTOR (7.5KW) (0662)
• ENGINES / S6D105-1AJ S/N 86535-UP / ELECTRICAL SYSTEM / STARTING MOTOR (7.5KW) (0661)
• ENGINES / S6D105-1G S/N 12124-UP / COOLING AND ELECTRICAL SYSTEMS / STARTING MOTOR (1/2)(#53244-) (555)
• ENGINES / S6D105-1JJ S/N 79301-UP / ELECTRICAL SYSTEM / STARTING MOTOR (7.5KW) (0662)
• ENGINES / S6D105-1PP S/N 81520-UP / ELECTRICAL SYSTEM / STARTING MOTOR (7.5KW) (COLD TERRAIN SPEC.) (EXCEPT JAPAN) (0662)
• ENGINES / S6D105-1QQ S/N 82173-UP / ELECTRICAL SYSTEM / STARTING MOTOR (7.5KW)(#92780-) (0662)

This part appears in 882 Komatsu engine book paths in our reference data.

Verification note

Always confirm final fitment by engine model, serial range, diagram callout, and part number before ordering. Hub references are provided to help buyers find the right engine section and related parts faster.

Keep Ops Moving

19PARTS organizes Komatsu engine parts around searchable engine-model hubs so rebuild shops, equipment owners, and fleet teams can identify parts and keep repairs moving.