Water Pump with 4-Bolt Hub for Kubota B-Series / Bobcat – 15534-73030
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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.
Applications are grouped below. Equipment can vary by serial number, engine, and production configuration.
| Kubota B Series | B4200, B5100, B6200, B1550, B1750 and other cataloged applications using this pump family |
| Other Equipment | Selected Bobcat/Kubota-powered equipment using matching cross-reference numbers |
Product Overview
The water pump circulates coolant through the engine and radiator. Leakage from the vent area, bearing noise, shaft play, overheating, or visible coolant loss around the pump are common reasons to inspect or replace this component.
Kubota parts catalogs supersede 15534-73030 to later 15534-73033 service numbers and tie several 15752-series references into the same replacement family. Replacement-pump specifications commonly identify a four-bolt hub, cast impeller and separate pulley arrangement.
Key Features & Performance
- Cooling-system circulation: Restores coolant flow through the engine when the original pump is leaking or mechanically worn.
- Application-specific mounting: Designed around the matching engine's mounting face, hub/pulley arrangement, and hose connections.
- Service repair: A practical repair point when pump bearing or seal wear is confirmed rather than replacing unrelated cooling components.
Part Numbers & Specifications
- Original References: 15534-73030; 15752-73030
- Later Reference: 15534-73033
- Related References: 15752-73032; 15752-73033
- Hub: 4-bolt hub; verify pulley configuration
Before You Order
Compare the original number, four-bolt hub, outlet position and pulley arrangement. The pulley may not be included with the pump and should be transferred only if serviceable and compatible.
Frequently Asked Questions
Is this an OEM part?
This is a replacement service part intended to interchange with the reference number(s) and applications listed here. It is not represented as a factory-branded OEM part unless the product packaging itself states otherwise.
How do I confirm fitment?
Match the original part number first, then confirm the machine model, engine, connector or mounting arrangement, and any serial-number break that applies to your equipment.