Water Pump MM409302 for Satoh ST1640D ST1840 S373D S470 S2320 234 244
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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.
| Application | Fitment Notes |
|---|---|
| Satoh ST1640D / ST1840 | Use only with the matching original part/configuration. |
| Satoh S373D / S470 | Use only with the matching original part/configuration. |
| Satoh S2320 / 234 / 244 | Use only with the matching original part/configuration. |
Product Overview
For buyers repairing Satoh ST1640D, ST1840, S373D, S470, S2320, 234 and 244 tractor applications using the matching pump, this water pump gives you a focused replacement option without adding unsupported claims about applications outside the listed fitment. Restores the coolant movement needed to control engine temperature during normal work.
Fitment matters on service parts like this one. Match MM409302 or the related reference number and compare the pump casting/pulley arrangement to the original.
Key Features & Performance
- Designed for Satoh ST1640D, ST1840, S373D, S470, S2320, 234 and 244 tractor applications using the matching pump.
- Restores the coolant movement needed to control engine temperature during normal work.
- Cross-reference number(s): MM409302, MM407402, MM409303.
- Application: Engine cooling system.
Technical Specifications
- Reference Numbers: MM409302, MM407402, MM409303
- Application: Engine cooling system
OE / Reference Numbers
- MM409302
- MM407402
- MM409303
Common Reasons for Replacement
- Coolant leaking from the pump seal or housing
- Noisy or loose water-pump bearing
- Engine overheating from reduced coolant circulation
Frequently Asked Questions
How do I confirm fitment?
Match MM409302 or the related reference number and compare the pump casting/pulley arrangement to the original.
What should be inspected during water-pump replacement?
Inspect the belt or drive, hoses, thermostat, coolant condition and sealing surfaces so another cooling-system fault is not mistaken for a pump problem.
Is this an OEM part?
This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.