Item Description

Yanmar Fuel Injection Pump 129A00-51000 129C28-51000 | 3TNV88 4TNV98

Replacement Fuel Injection Pump designed for compatible Yanmar and Komatsu diesel engine applications. This injection pump is an excellent replacement for a worn, damaged, or failed fuel injection pump and is designed for a wide range of industrial, construction, and equipment applications.

Replacement Part Numbers

129A00-51000
129C28-51000
YM129A00-51000
YM129C28-51000
YM129A0051000
YM129C2851000
129A0051000
129C2851000
0445020509 / 0 445 020 509
0445020538 / 0 445 020 538
0445020553 / 0 445 020 553
7270450
2451300026
VV129A00-51000
VV129A0051000
Y129A00-51000
Y129A0051000

Engine Applications

Komatsu

4D88E-7

Yanmar

3JH40
4JH45
4JH57
4JH80
3TNV86 series
3TNV88 series
4TNV86 series
4TNV88 series
4TNV98 series

Compatible engine variants include numerous 3TNV86, 3TNV88, 4TNV86, 4TNV88, and 4TNV98 configurations. Please see the fitment information below and verify your original part number before ordering.

Equipment Applications

Komatsu Loaders

WA70M-8E0
WA80M-8E0

Komatsu Excavators

PC45MR-5
PC55MR-5
PC45MR-5E0
PC55MR-5E0
PC58MR-5E0
PC80MR-5
PC80MR-5E0

CASE Excavator

CX55B

New Holland Excavator

E55BX

Takeuchi Excavator

TB260

Product Features

Replacement diesel fuel injection pump
Replaces multiple Yanmar and equipment manufacturer part numbers
Designed for compatible Yanmar and Komatsu diesel engines
Helps provide proper fuel delivery to the engine
Ideal for replacing a worn, damaged, or malfunctioning injection pump
Suitable for construction equipment, excavators, loaders, and industrial diesel applications

Important Fitment Information

Please verify your original injection pump part number, engine model, equipment model, and serial number before ordering. The same engine family can use different injection pumps depending on the engine configuration and application.

Compare your existing pump and part number carefully before purchase to ensure a proper match.

Why Buy From JD Lift Parts?

Competitive pricing
Fast shipping
Large inventory of diesel engine and equipment parts
Parts for Yanmar, Komatsu, Takeuchi, CASE, New Holland, Toyota, Hyster, Yale, and more
Customer-focused service

Shop online for quality replacement equipment parts:

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