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SKU:
NLT2T03698
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Water Pump for Kubota V2003 V2203 V2403 / KX91-3 KX121-3 KX161-3 – 1A051-73032
$101.69
In Stock
$101.69
Sale price
$101.69
Regular price
This water pump replaces Kubota 1A051-73032 and related 1A051-7303x numbers on V2003, V2203 and V2403 engine applications.
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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
| Brand / Equipment | Compatible Models / Engines | Fitment Notes |
|---|---|---|
| Kubota | V2003, V2203, V2403 | Diesel engines |
| Kubota | KX91-3, KX91-3S, KX91-3S2; KX121-3, KX121-3S, KX121-3ST | Excavators |
| Kubota | KX161-3; U35, U35-4, U35S, U35-S2; U45S, U45ST | Excavators |
| Kubota | R520S | Wheel loader |
Product Overview
Kubota parts documentation identifies 1A051-73032 as a water-pump assembly. Cross-reference suppliers also list 1A051-73030, 1A051-73035 and 1A051-73036, with applications spanning KX91-3, KX121-3, KX161-3, U35/U45 variants and the R520S loader.
A leaking mechanical seal or worn pump bearing can cause coolant loss, pulley wobble, noise and eventual overheating. When replacing the pump, inspect the belt, pulley alignment, thermostat/cooling system and use the correct gasket/seal procedure for the engine.
Key Features & Performance
- Kubota-style belt-driven water pump with hub
- Cross-references 1A051-73032 / 1A051-73030 / 1A051-73035 / 1A051-73036
- Expanded applications include multiple KX and U-series excavators
Reference Part Numbers
- 1A051-73032
- 1A051-73030
- 1A051-73035
- 1A051-73036
Product Details
- Component: Engine water pump assembly
- Drive: Belt driven
What to Verify Before Ordering
Confirm the part number by engine and machine serial number. Compare hub/pulley mounting and coolant-port configuration with the old pump.
Frequently Asked Questions
What are common water-pump failure signs?
Coolant leakage, bearing noise, pulley wobble and repeated overheating are common signs.
Does 1A051-73032 appear on equipment beyond KX91-3/KX121-3?
Yes. Cross-reference data also lists KX161-3, U35/U45 variants and R520S applications.