Engine Coolant Water Pump for John Deere PowerTech 4.5L / 6.8L Equipment - Part Number: 74712172

The engine coolant water pump (part number 74712172, original equipment references SE501227, RE546918, RE523169, RE509813, RE546906) is a heavy-duty, OEM-standard mechanical hydraulic component engineered for forced coolant circulation on John Deere PowerTech 4.5-liter and 6.8-liter diesel engines. Featuring precision sintered mechanical face seals resistant to chemical wear and high-load sealed double-row bearings, it ensures continuous heat transfer and thermal equilibrium, preventing hot spots, cavitation damage, and head gasket failure across an extensive line-up of John Deere utility, row-crop, telescopic handlers, self-propelled sprayers, and combine harvesters.

Key Features & Engineering Benefits

• Hydraulic Calibration for PowerTech 4.5L & 6.8L Engines: Impeller vane curvature is hydrodynamically balanced to deliver uniform, high-volume coolant circulation across all engine RPMs, protecting cylinders under severe field towing and PTO applications.
• Heavy-Duty Sintered Mechanical Face Seal: High-purity friction rings resist coolant crystallization, cavitation, and aggressive chemical corrosion from modern ethylene glycol and OAT/HOAT organic acid formulations.
• High-Capacity Double-Row Ball Bearings: Sealed-for-life bearing assembly absorbs continuous radial drive-belt tension without developing shaft endplay, tilt, or operational chatter.
• Direct OEM Interchangeability (Plug & Play): Flange geometry and mounting dimensions are precision-machined to match factory John Deere specifications, directly replacing OEM codes SE501227, RE546918, RE523169, RE509813, and RE546906.
• Rugged Anti-Corrosion Housing: Structural casting engineered to withstand cavitation erosion, internal rust scaling, and heavy thermal expansion cycles throughout multi-season harvesting operations.

Technical Specifications

John Deere Application Coverage

Series Family	Compatible Machine Models
5E / 5M / 5R / 5RN Series	5085E | 5085M, 5100M, 5105M, 5115M, 5115ML | 5080R, 5090R, 5100R, 5115R, 5125R
6D / 6E / 6MC Series	6100D, 6105D, 6110D, 6115D, 6125D, 6130D, 6140D | 6105E | 6090MC
6M / 6R Series	6105M, 6110M, 6115M, 6120M, 6125M, 6130M, 6135M, 6140M, 6145M | 6105R, 6110R, 6115R, 6120R, 6125R, 6130R, 6135R
6005 / 6010 / 6010SE / 6015 Series	6205, 6505 | 6010, 6510, 6610, 6810, 6910, 6910S, SE6010, SE6110, SE6210, SE6310, SE6410, SE6510, SE6610 | 6215, 6215 (PC4367), 6515
6020 / 6020SE / 6025 Series	6120 (PC4356), 6220, 6320 (PC4357), 6420 (PC4357), 6420S, 6520, 6620, 6820, 6920, 6920S, SE6020, SE6120, SE6220, SE6320, SE6420, SE6520, SE6620, SE6920 | 6225, 6325, 6425, 6525
6030 / 6030 Premium Series	6130, 6230, 6230 PR, 6330, 6330 PR, 6430, 6430 PR, 6530, 6530 PR, 6534, 6534 PR, 6630, 6630 PR, 6830 PR, 6930 PR
7005 / 7010 / 7030 / 7210 Series	7005 Series | 7610, 7710, 7810 | 7130 PR, 7230 PR, 7330 PR, 7430 PR, 7530 PR, 7630, 7730, 7830, 7930 | 7210
8030 / 8030T / 9000 Series	8130 | 9560
Utility, Telehandlers & Sprayers	1165 | Telehandler 3800 | Self-Propelled Sprayer 5430I
Combine Harvesters (CWS, WTS, T, W)	1570 | T550 | W540, W550, W650 | WTS 9540, WTS 9540i, WTS 9560, WTS 9560i, WTS 9580i

Installation & Service Note: Drain and flush the entire cooling system prior to pump replacement to eliminate abrasive particulate matter, scale, and rust deposits. Thoroughly clean and degrease the engine block mounting face. Fit matching gaskets dry without silicone sealant or petroleum grease, and torque mounting bolts in a diagonal criss-cross pattern to factory John Deere torque settings. Refill with approved antifreeze, bleed trapped air from the circuit, and perform an operating temperature test to ensure leak-free operation.