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Magnetic Relay YM129100-77910 for Komatsu Engine 4D94E-1A 4D98E-1A-TR Excavator PC110R-1 PW95R-2 Loader WB140-2
Magnetic Relay for Engine,Excavator,Loader,Off-Road Truck
Engine,Excavator,Loader,Off-Road Truck Magnetic Relay
Magnetic Relay compatible with Engine,Excavator,Loader,Off-Road Truck
 Magnetic Relay For KOMATSU
FridayParts Magnetic Relay
Magnetic Relay For KOMATSU Engine,Excavator,Loader,Off-Road Truck
Magnetic Relay YM129100-77910 for Komatsu Engine 4D94E-1A 4D98E-1A-TR Excavator PC110R-1 PW95R-2 Loader WB140-2 for less

Magnetic Relay YM129100-77910 for Komatsu Engine 4D94E-1A 4D98E-1A-TR Excavator PC110R-1 PW95R-2 Loader WB140-2

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Product Details

Magnetic Relay YM129100-77910 for Komatsu Engine 4D94E-1A 4D98E-1A-TR Excavator PC110R-1 PW95R-2 Loader WB140-2

Replacement Part Number: YM129100-77910, YM12910077910

Fit for Komatsu Engine: 4D94E-1A, 4D98E-1A-TR

Application:
Fit for following models:
Komatsu Truck: HD20-1, HD25-1
Komatsu Excavator:
PC110R-1, PC75R-2, PC75R-2HD, PC95R-2, PW110R-1, PW75R-2, PW95R-2
Komatsu Loader:
WB140-2, WB140-2N, WB140PS-2, WB140PS-2N, WB150-2, WB150-2N, WB150AWS-2, WB150AWS-2N, WB150PS-2, WB150PS-2N, WB150WSC-2, WB91R-2, WB93R-2, WB97R-2, WB97S-2, WB98A-2

Product Highlights
Compatible Model Brand
Model Number
Replacement Part Number
For KOMATSU
PC75R-2, PW75R-2, PC110R-1, PW110R-1, WB140-2N, WB140PS-2N, WB150-2N, WB150AWS-2N, WB150PS-2N, WB93R-2, WB97R-2, WB97S-2, WB98A-2, PC95R-2, PW95R-2, WB140-2, WB150-2, WB91R-2, WB150WSC-2, WB150PS-2, WB140PS-2, WB150AWS-2, PC75R-2HD, HD20-1, HD25-1
YM129100-77910, YM12910077910
Compatible Engine Brand
Engine Number
Replacement Part Number
For KOMATSU
4D94E-1A, 4D98E-1A-TR
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TIM BOWERS
Reviewed on 21/11/2025
Excellent Replacement for Komatsu Equipment

The installation was straightforward, and the relay is working flawlessly. It restored the electrical system's reliability, and now the machine starts and operates smoothly without any issues. I’ve also noticed an improvement in the overall response time, which was a nice bonus!

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