No Products in the Cart
Yanmar 119802-42000 is the aluminium engine water pump: the four hole pulley flange on a sealed bearing, the inlet pipe, the threaded ports and the thermostat housing cast into the body. It is used on Yanmar 3TNV82A and 3TNV76 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 | Engine Water Pump |
| Replaces | Yanmar 119802-42000 |
| Type | Engine coolant (water) pump |
| Engine | Yanmar 3TNV82A, 3TNV76, 3TNV75, 3TNE82 |
| Body | Aluminium |
| Pulley flange | 4 hole |
| Also listed as | 119802-42001 |
| Fits | Yanmar 3TNV82A, 3TNV76, 3TNV75 and 3TNE82 engines, as in the Yanmar B25V, B27, B30V, VIO30 and VIO35, Case CX20B, CX27B and CX31 and Komatsu PC20R, PC27R and PC20-7 mini excavators |
| 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 |
|---|---|
| 119802-42000(SPM-HEP-5329) | Yanmar 3TNV82A, 3TNV76, 3TNV75 and 3TNE82 engines, as in the Yanmar B25V, B27, B30V, VIO30 and VIO35, Case CX20B, CX27B and CX31 and Komatsu PC20R, PC27R and PC20-7 mini excavators |
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 Yanmar 3TNV82A, 3TNV76, 3TNV75, 3TNE82 engines and 11 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 |
|---|---|---|
| eBay, aftermarket seller | USD 62.00 | 4 Nov 2026 |
| Diselmart | USD 94.00 | 4 Nov 2026 |
| Fab Heavy Parts | USD 96.31 | 4 Nov 2026 |
| WDPART | USD 128.70 | 4 Nov 2026 |
| Spare Part Mart | USD 46.37 | Today |
Our price of USD 46.37 is 25% to 64% 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 Yanmar 3TNV82A, and 14 more listed under compatible equipment. Check the old water pump is marked 119802-42000 or one of the cross references, because makers change parts between serial ranges.
On the Yanmar 3TNV82A, 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 Yanmar 119802-42000. 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.
