Hand Fuel Priming Pump for Komatsu 4D95L Engines – 152200-5420
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Komatsu engine variants | 4D95L-1FF |
|---|---|
| 4D95L-1GG-BW |
Product Overview
The primer is used to refill the low-pressure side of the fuel system and purge air after filters or fuel lines have been opened. A primer that leaks externally, will not draw fuel or never becomes firm can make routine service difficult and may contribute to hard starting after the machine sits.
The original application lists 4D95L-1FF and 4D95L-1GG-BW engine variants. Komatsu equipment can use different filter-head/primer arrangements by machine and serial number, so the physical pump should be compared before ordering.
Key Features & Performance
- Manual fuel-system priming and air bleeding
- Reference 152200-5420
- Application to Komatsu 4D95L-family diesel fuel systems
- Service replacement for damaged or non-pumping hand primers
Part Numbers & Specifications
- Part number: 152200-5420
- Component: hand fuel priming/feed pump
Before You Order
Confirm the 152200-5420 number, mounting threads and fuel-port arrangement. If the system loses prime repeatedly, check the filter head and suction hoses for air entry.
Frequently Asked Questions
What is the primer used for?
It manually pulls/pushes fuel through the low-pressure circuit to remove air after service.
Can it cause a no-start?
A leaking or failed primer can contribute to loss of prime, although many other fuel-system faults can also cause a no-start.
Should I match the engine or machine?
Match both when possible, with the part number and physical pump configuration taking priority.