No Products in the Cart
Hyundai 25100-42541 is the engine coolant pump: an aluminium body with a four hole pulley hub, a side outlet and a flanged mounting face. It is used on Hyundai D4BB and Mitsubishi 4D56 engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as Hyundai 25100-42540.
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 | Hyundai 25100-42540 |
| Engine | Hyundai D4BB, Mitsubishi 4D55, 4D56 |
| Pulley hub | 4 hole |
| Cross references | Hyundai 25100-42541 |
| Fits | Hyundai D4BB engines and Mitsubishi 4D55 and 4D56 engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Hyundai machines
Check the part number on your old unit before ordering.
| Hyundai Part No.(SPM Part No.) | Fits |
|---|---|
| 25100-42540(SPM-HEP-4655) | Hyundai D4BB engines and Mitsubishi 4D55 and 4D56 engines |
| 25100-42541(SPM-HEP-4655) | Hyundai D4BB engines and Mitsubishi 4D55 and 4D56 engines |
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 Hyundai D4BB engines, Mitsubishi 4D55 and 4D56 engines. 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 |
|---|---|---|
| FridayParts | USD 43.55 | 31 Oct 2026 |
| Buy Machinery Parts | USD 57.24 | 2 Nov 2026 |
| eBay, aftermarket seller | USD 62.99 | 31 Oct 2026 |
| SINOCMP | USD 139.00 | 31 Oct 2026 |
| Spare Part Mart | USD 42.39 | Today |
Our price of USD 42.39 is 3% to 70% 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 is a direct replacement for the Hyundai 25100-42541 with the same fitting.
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.
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
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.
No. It is an aftermarket water pump made to replace the Hyundai 25100-42541. 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.
Join and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that. Turn points into a discount whenever you like.
Opens the Marty Mates panel. No password: you enter your email, we send a code, and that is you in with your 200 points waiting. Joining signs you up to our emails and you can leave any time from the link in any of them. See our terms and conditions.
Member deals, specials before they go public, and easy ways to stack up points. Plus a nudge when a part you bought is due, so you are not caught out mid job.
You can leave any time from the link in any email we send. See our terms and conditions.
We will only bother you when it is worth it: a member deal, a specials drop, a way to earn points faster, or a heads up that a part you bought is due.
Join Marty Mates and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that.
No password: you enter your email, we send a code, and that is you in.
