Water Pump for Mitsubishi S3L2 K3E K3B K3D – Volvo Pel-Job Kobelco Cat Mini Excavators
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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.
We do our best to list all compatible models, but equipment can vary by engine, serial number and production configuration. Use the part numbers and fitment details below to confirm your application.
| Equipment / Engine | Compatible Application |
|---|---|
| Mitsubishi engine | S3L2 |
| Mitsubishi engine | K3E / K3B / K3D |
| Equipment applications | Select Volvo/Pel‑Job, Kobelco and Caterpillar compact machines |
Product Overview
The water pump circulates coolant through the engine and radiator so heat can be carried away from the cylinder block and head. Bearing noise, shaft play, coolant leakage at the weep hole or recurring overheating can point to a worn pump.
These Mitsubishi industrial engines appear in several brands of mini excavators and compact machines, but pump castings and pulley arrangements can vary by engine build. Match the pump body, bolt pattern, pulley/flange arrangement and engine identification tag rather than relying only on the equipment brand.
Key Features & Performance
- Cooling-system pump for multiple Mitsubishi compact diesel engine families
- Supports coolant circulation under continuous industrial duty
- Relevant to compact excavator and mini-equipment applications
- Designed as a service replacement when the original pump leaks or develops bearing play
Specifications
| Part type | Engine coolant water pump |
| Engine families | S3L2 / K3E / K3B / K3D |
| Fitment method | Verify engine tag and pump casting |
Before You Order
Compare the engine model, pump casting, bolt pattern, hose ports and pulley/flange arrangement to your existing pump before ordering.
Frequently Asked Questions
What are common signs of a failing water pump?
Coolant seepage, wobble at the shaft, bearing noise, unexplained coolant loss and overheating are common reasons to inspect or replace the pump.
Is this an OEM part?
This listing is for a replacement component for the applications shown above. Match the reference number, physical configuration and machine or engine details before ordering.