Water Pump with Gasket for Kubota D722/D782/D902/Z602 – 1G820-73035
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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 Engines | D722; D782; D902; Z602 |
| Kubota Equipment | Selected K008, KX018, KX41, U10, U15, U17 and G-series applications |
| Other Equipment | Selected Toro Dingo 525 applications using the matching Kubota engine/pump |
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.
Replacement catalogs group 1G820-73035 with related 1G820-73030, 1G820-73036 and 1G820-73037 numbers. The same pump family appears in compact excavators, mowers and utility equipment built around these Kubota engines.
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
- Primary Reference: 1G820-73035
- Related References: 1G820-73030; 1G820-73036; 1G820-73037
- Cross References: Toro 110-3824 / 117-0330 on applicable machines
- Included: Gasket when supplied as listed
Before You Order
Match the original pump number and compare the hub, mounting face and outlet location. Small Kubota diesel engines can use different pump revisions even when displacement is similar.
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.