Original Cummins engine spare parts water pump C5714791

As the core of the X15/ISX15 engine’s thermal management system, this water pump incorporates an advanced aerodynamic impeller design to deliver exceptional cooling performance. The impeller, forged from heat-resistant A380 aluminum alloy and precision-machined with 16 twisted vanes, generates a coolant flow rate of 220L/min at the engine’s rated speed (2100rpm)—30% higher than standard aftermarket pumps. This high flow rate ensures rapid heat extraction from the cylinder block and head, maintaining the engine’s optimal operating temperature (88-95℃) even under extreme conditions, such as a mining truck working at 45℃ ambient temperature or a long-haul tractor climbing steep grades with full load. The impeller’s streamlined profile also minimizes hydraulic resistance, reducing the engine’s parasitic power loss by ≤1.5%

Engineered to endure the rigorous operating conditions of heavy-duty applications, the C5714791 water pump features a robust, industrial-grade construction. The pump housing is precision-cast from nodular cast iron (GGG40) with reinforced internal ribs, enabling it to withstand 200kPa system pressure without deformation—critical for handling coolant surges during cold starts or high-load operation. The drive shaft is manufactured from 42CrMo alloy steel,quenching and tempering treatment to achieve a surface hardness of HRC 55-58 and a tensile strength of 1000MPa, ensuring resistance to bending and wear. A double-row angular contact ball bearing, sealed with high-temperature fluoroelastomer, provides smooth rotation with a rated lifespan of 300,000km, while a silicon carbide/carbon mechanical seal delivers a leakage rate of ≤0.005g/h, far exceeding industry standards

The C5714791 water pump is optimized to resist corrosion, thermal aging, and chemical degradation in diverse operating environments. The impeller and internal flow channels are coated with a 0.12mm-thick ceramic composite layer, which forms a barrier against corrosion from ethylene glycol coolant, hard water minerals, and diesel engine by-products. This coating ensures no pitting or erosion even after 1500 hours of immersion in high-temperature coolant (130℃). The mechanical seal’s O-ring and gasket are made of HNBR rubber, which maintains elasticity across a temperature range of -40℃ to 150℃, avoiding brittleness in frigid northern climates or swelling in desert heat. The external housing and pulley undergo a two-step protective treatment—zinc plating followed by electrophoretic coating—passing 2000-hour neutral salt spray testing (ASTM B117) to prevent rust in coastal or saline-alkali regions

This original Cummins water pump is designed with both maintenance convenience and long-term cost savings in mind. Its modular structure allows for easy replacement of wear components (such as the mechanical seal and bearing) without replacing the entire pump assembly, reducing repair costs by 60% compared to non-OE alternatives. The 6-bolt mounting flange features precision-located alignment pins, enabling technicians to complete installation in 2 hours—40% faster than aftermarket pumps that require re-drilling or shimming. By maintaining consistent engine temperatures, the pump reduces thermal stress on critical components like cylinder heads and pistons, extending overall engine lifespan by 25% and avoiding costly overhauls (which can exceed $15,000). Backed by a 2-year/250,000km Cummins factory warranty, it provides fleet operators with reliable performance and predictable maintenance costs, minimizing unplanned downtime for heavy-duty vehicles