No Products in the Cart
Yanmar 129919-42010 is the engine coolant water pump with housing, bearing, shaft and impeller. It is used on Yanmar 4TNE98 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 | Yanmar 129919-42010 |
| Fits | Yanmar 4TNE92, 4TNE94 and 4TNE98 engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Yanmar machines
Check the part number on your old unit before ordering.
| Yanmar Part No.(SPM Part No.) | Fits |
|---|---|
| 129919-42010(SPM-HEP-4361) | Yanmar 4TNE92, 4TNE94 and 4TNE98 engines |
Coolant leak from the weep hole
Coolant dripping from the pump body means the seal has failed. Replace the pump before the engine runs low and overheats.
Overheating
A worn impeller moves less coolant. If the engine runs hot with a good thermostat and radiator, check the pump.
Bearing noise or play
A rumble or play at the pulley means the bearing is worn and the seal will follow.
Service at the same time
Change the thermostat, belts and coolant while the pump is off.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| KuduParts | USD 140.00 | 25 Oct 2026 |
| FridayParts | USD 144.90 | 25 Oct 2026 |
| eBay (7 aftermarket sellers) | USD 145.03 to 379.00 | 25 Oct 2026 |
| Buy Machinery | USD 255.53 | 25 Oct 2026 |
| Spare Part Mart | USD 115.92 | Today |
Our price of USD 115.92 is 17% to 69% 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.
No. It is an aftermarket part made to fit in place of Yanmar 129919-42010. It is not made by or affiliated with Yanmar; the Yanmar part number is used only to show what it replaces.
It fits Yanmar 4TNE92, 4TNE94 and 4TNE98 engines. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It is made to the same mounting and connections as the original part. Fit new gaskets and seals where they are used, and check for leaks and correct operation before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
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.
