RE521503 Water Pump John Deere (Help Parts)
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Engine Water Pump RE521503 for John Deere
The replacement part RE521503 is a water pump for John Deere agricultural machinery engines, which ensures forced circulation of coolant (anti-freeze) in the internal combustion engine cooling system. It is mounted in PowerTech series engines (particularly 6081A, 6081H, etc.) and guarantees even cooling even during intense operation of the equipment.
This pump has been designed with consideration for high loads in field conditions and is characterized by high wear resistance, which helps ensure stable operation of the cooling system and prevents engine overheating.
Specification
- Article: RE521503
- Type: Engine cooling water pump
- Purpose: Circulation of coolant in the engine
- Compatibility: John Deere 6081A/6081H, 6090H PowerTech Plus engines (mounted in combines, tractors, and other machines)
- Compatibility: Pump with impeller and gasket seats
- Material: Durable metal housing and working components
- Features: High efficiency and durability
- Condition: New part, high-quality OEM equivalent
- Weight: approximately 4-4.5 pounds (~1.8-2 kg)
- Analogues/OEM: RE500317, RE509599, SE501595, A-RE521503 (replacement numbers)
Application
The RE521503 pump is used in the cooling system of John Deere diesel engines, where it provides:
forced circulation of coolant throughout the engine;
Effective heat dissipation from the cylinder block and head;
Prevention of engine overheating during prolonged and intense work;
Stable operation under increased load in the field or with agricultural machines.
This water pump is an extremely important replacement part for the normal operation of the engine – its timely replacement helps avoid serious damage caused by overheating and ensures a long lifespan of the equipment.

