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SKU:
NLT2T02419
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Water Pump for Yanmar 330 336 1700B 1900 2000 2500 3000 3100 3810 – 121250-42011
$83.49
In Stock
$83.49
Sale price
$83.49
Regular price
This is a brand new engine water pump for Yanmar tractors: 330, 336, 1700B, 1900, 2000, 2000B, 2500, 2610, 2620, 2820, 3000, 3100 / 3110, 3810, 4300. Key reference number(s): 121250-42011, 721250-42700.
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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.
Compatible equipment / model
| Make / Application | Compatible Models / Details |
|---|---|
| Yanmar tractors | 330, 336, 1700B, 1900, 2000, 2000B, 2500, 2610, 2620, 2820, 3000, 3100 / 3110, 3810, 4300 |
Product Overview
A water pump used on a large group of classic Yanmar compact tractors. Yanmar aftermarket catalog data cross-references this pump to 121250-42011 / 721250-42700 and expands the fitment well beyond the shorter original model list.
Leakage, bearing rumble, pulley play or overheating are typical reasons to replace the pump. On older tractors, also inspect the fan mount, belt and radiator condition.
Key Features & Performance
- Restores coolant circulation through the engine and radiator.
- Addresses leakage, bearing wear and reduced coolant-flow concerns.
- Model/engine and hub or bolt-pattern checks help avoid similar-looking pump mismatches.
Specifications & Reference Numbers
- Reference number(s): 121250-42011, 721250-42700
- Fitment note: Some Yanmar 240 applications require checking the hub/fan-mount size and bolt pattern
Before You Order
Match 121250-42011 or 721250-42700 where possible and compare hub height/bolt pattern. Some Yanmar models use visually similar pumps with different fan mounts.
Frequently Asked Questions
Q: What should I verify before ordering?
A: Match 121250-42011 or 721250-42700 where possible and compare hub height/bolt pattern. Some Yanmar models use visually similar pumps with different fan mounts.
Q: Why would this part need to be replaced?
A: Leakage, bearing rumble, pulley play or overheating are typical reasons to replace the pump. On older tractors, also inspect the fan mount, belt and radiator condition.
Q: Is this an OEM part?
A: This listing is for a replacement component. Manufacturer names and reference numbers are used to identify fitment; compare the original part number and configuration before ordering.