Engine Coolant Water Pump for John Deere 03 & 5E Series (3029 HPY Engines) - Part Number: 11258869
The engine coolant water pump (part number 11258869, original equipment references RE536356, RE553223) is a high-precision OEM-standard mechanical component designed for forced coolant circulation on John Deere 3-cylinder 3029-series diesel engines (PowerTech 2.9L) in HPY build specifications. Engineered with high-temperature sintered mechanical seals and shielded rolling bearings, it ensures consistent heat transfer away from the cylinder liners and head, preventing thermal spikes, cavitation, and equipment downtime on John Deere 03 Series (5303, 5403, 5503) and 5E Series (5055E, 5075E) utility and farm tractors.
Key Features & Engineering Benefits
- Hydraulically Calibrated for John Deere 3029 Engines: Tailored impeller profile delivers uniform, surge-free volumetric coolant flow across all operating RPM ranges, ensuring cooling stability under heavy PTO and drawbar workloads.
- Heavy-Duty Sintered Mechanical Face Seal: High-grade friction rings resist abrasive wear, coolant crystallization, and chemical degradation from conventional or modern organic acid technology (OAT/HOAT) formulations.
- High-Capacity Sealed Double-Row Bearings: Built to absorb continuous radial tension loads from auxiliary drive belts without developing shaft play, runout, or rotational vibration.
- Direct OEM Interchangeability (Plug & Play): Flange geometry and mounting hole pitch conform precisely to factory John Deere machining tolerances, serving as a direct drop-in replacement for RE536356 and RE553223.
- Long-Term Durability in Heavy Field Use: Rugged housing casting with corrosion-inhibiting treatment protects against internal cavitation damage, scaling, and galvanic corrosion.
Technical Specifications
| Commercial Part Number |
11258869 |
| Original Equipment References (OEM) |
RE536356, RE553223 |
| Product Classification |
Centrifugal engine coolant water pump |
| Vehicle Make Compatibility |
John Deere (Agricultural & Utility Tractors) |
| Engine Build Models |
3029HPY33, 3029HPY36, 3029HPY39, 3029HPY40, 3029HPY41, 3029HPY42, 3029HPY44, 3029HPY46, 3029HPY56, 3029HPY57, 3029HPY58 |
| Coolant Media Compatibility |
Ethylene glycol mixtures, OAT, HOAT formulations, and treated water |
John Deere Tractor Application Coverage
| Series Family |
Compatible Tractor Models |
| 03 Series (Utility) |
5303, 5403, 5503 |
| 5E Series |
5055E, 5075E |
Installation & Service Note: Drain and flush the cooling circuit thoroughly prior to installation to clear abrasive sediment, rust particles, and scale buildup. Thoroughly degrease the engine block mounting surface. Install matching gaskets dry without liquid paste or petroleum grease, and torque mounting bolts in a diagonal sequence to John Deere workshop specifications. Refill with recommended coolant, bleed the system to purge trapped air, and run to operating temperature to verify hermetic sealing.
