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Komatsu 6204-61-1204 is the engine coolant pump: cast iron body, bearing and shaft, mechanical seal and impeller, with flange hub. It is used on Komatsu 4D95 engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Water Pump |
| Replaces | Komatsu 6204-61-1204 |
| Fits | Komatsu 4D95, S4D95 and 4D95L engines, including the PC60-5 excavator and Komatsu forklifts |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Komatsu machines
Check the part number on your old unit before ordering.
| Komatsu Part No.(SPM Part No.) | Fits |
|---|---|
| 6204-61-1204(SPM-HEP-4464) | Komatsu 4D95, S4D95 and 4D95L engines, including the PC60-5 excavator and Komatsu forklifts |
What it does
It circulates coolant through the block, head and radiator. A worn seal or bearing lets coolant out and the engine overheat.
Where it is used
Made for the Komatsu 4D95, S4D95, 4D95L engines, including the PC60-5 excavator and 1 more. The full list is in the tables above.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| Forklift America | USD 133.10 | 29 Oct 2026 |
| Yem Parts | USD 152.43 | 1 Nov 2026 |
| eBay (8 aftermarket sellers) | USD 167.14 to 426.12 | 29 Oct 2026 |
| Buy Machinery Parts | USD 275.30 | 1 Nov 2026 |
| Spare Part Mart | USD 106.48 | Today |
Our price of USD 106.48 is 20% to 75% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the Komatsu 4D95, and 4 more listed under compatible equipment. Check the old water pump is marked 6204-61-1204 or one of the cross references, because makers change parts between serial ranges.
On the Komatsu 4D95, often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
Most failures come from contamination, cavitation from a restricted inlet, or running low on fluid. Check the inlet and the fluid before fitting the new water pump.
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
No. It is an aftermarket water pump made to replace the Komatsu 6204-61-1204. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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