ODM 5291445 Water pump (Cummins) Engine Cooling Pump Replacement for 6C8.3 G8.3 Manufacturer, Exporter

Cummins 5291445 Coolant Pump is an OEM replacement part designed for engines such as the 6C8.3 and G8.3 series. It is compatible with construction machinery, heavy-duty vehicles, and generator sets, directly replacing models like 3973114 and 3940052 to ensure efficient cooling system circulation and stable engine operation. The 5291445 cooling water pump serves as the core power component of Cummins engine cooling systems. Manufactured to OEM specifications, it matches the flow and pressure parameters of the original equipment pump. It drives coolant circulation between engine water jackets, radiators, and other components under high-temperature, high-pressure conditions, promptly dissipating heat generated during engine operation to prevent overheating. Compatible with 6C8.3, G8.3, 6CT, 6CTA, ISC, ISL, ISL9, and QSL engines. It is widely used in construction machinery such as excavators and loaders, as well as in heavy-duty vehicles and generator sets.

Product Description

OVERVIEW

5291445 Cooling Water Pump Replacement Part features a high-quality cast iron housing, wear-resistant impeller, sealing assembly, and precision bearings. It delivers excellent sealing, stable operation, low noise, and minimal wear. Manufactured to OEM standards, it ensures stable flow and pressure while withstanding high-temperature and high-pressure conditions. This guarantees efficient cooling system circulation, prevents engine overheating, and extends engine lifespan. Includes mounting gaskets and bolts for direct replacement of old pumps without additional modifications, reducing maintenance complexity and time costs. As a universal replacement part for multiple Cummins engine models, it offers high compatibility, simplifying procurement and inventory management. Market supply is ample, ensuring easy access to replacement parts.

SPECIFICATIONS
Part Name Water Pump Part Number 5291445
Product Type Engine Cooling Pump Related Part 3973114, 3940052, 394005200, 4376359
Installation Interface Same as original pump Replacement Parts 5346205, 5528406, 5681295
Drive Mode Mechanical drive (crankshaft pulley) Speed Range Normal operating speed adapted
Operating Temp -40℃ - 120℃ Purpose Repair/replace/aftermarket
Quality OEM standard Origin China
Engine Type Diesel Engine Package Standard industrial packing
Compatible Engine Models 6C8.3, C GAS PLUS CM556, G8.3, ISC CM850, ISC8.3 G CM2180 C101, ISL CM2150, ISL CM850, ISL G CM2180, ISL9 CM2150 SN, ISLE4 CM850, L8.9 L121, L9 CM2670 L132B, QSC8.3 CM850(CM2850), QSL9 CM850(CM2850)
FEATURES
Reliable Performance: Manufactured to OEM standards, delivering stable flow and pressure to prevent engine overheating and extend lifespan.
Structure Optimization: Durable cast iron housing, wear-resistant impeller, and high-performance water seals prevent coolant leakage.
Easy Installation: Fully compatible with original dimensions; includes mounting gaskets and bolts for direct replacement.
Versatile Compatibility: Fits multiple engine models, simplifying procurement and inventory management.
Cost-Effective: Maintains high quality while offering a price advantage over brand-new OEM pumps.
COMPATIBLE MODELS
Compatible Engine Series
6C8.3 C GAS PLUS CM556 G8.3 ISC CM850
ISC8.3 G CM2180 ISL CM2150 ISL CM850 ISL G CM2180
ISL9 CM2150 SN ISLE4 CM850 L8.9 L121 QSC8.3 / QSL9
APPLICATION
Construction Machinery: Used in excavators, loaders, and bulldozers to ensure stable cooling under harsh conditions.
Heavy-Duty Vehicles: Designed for engines in heavy-duty trucks and buses, maintaining optimal temperatures during long-haul transport.
Generator Sets: Provides stable cooling for extended operation in factories, construction sites, and emergency power sources.
Marine & Agriculture: Applicable to marine vessels and agricultural machinery requiring 6C8.3 or G8.3 series engine cooling.
FAQ
Which engines is part 5291445 compatible with?
It is compatible with Cummins 6C8.3, G8.3, 6CT, ISC, ISL, and other series engines. It directly replaces older models such as 3973114 and 3940052.
What are the key steps for installing the 5291445 pump?
Drain old coolant, clean surfaces, and install the new gasket with sealant. Tighten bolts diagonally in 2-3 stages (torque 24-28 N·m). Refill coolant and bleed air before startup.
What should I do if abnormal noise occurs after installation?
Check for improper belt tension, unbalanced pulleys, or poor bearing installation. Adjust the tension and inspect the fan. If the issue persists, consider reinstalling the pump.
Why is the water pump leaking coolant?
Leaks are usually caused by a worn water seal, damaged gasket, or loose bolts. Tighten bolts first; if leakage continues, replace the gasket and water seal.
Why does the engine still overheat with a new pump?
This may be due to insufficient flow from a clogged impeller, low coolant levels, or a blocked radiator. Check coolant levels and inspect the radiator for obstructions.
How can routine maintenance extend the pump's lifespan?
Regularly check coolant levels, use approved coolant, and tighten loose belts. Inspect the pump every 500 hours for leaks or abnormal noises.

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