Original Cummins engine auto parts water pump 5681293

Built as the core of the engine’s cooling system, this water pump features an optimized centrifugal impeller design to maximize heat dissipation efficiency. The impeller (cast aluminum alloy) adopts a curved vane structure (12 vanes, 45° angle) that generates a water flow rate of 180L/min at the engine’s rated speed (2100rpm)—increasing cooling capacity by 30% compared to aftermarket alternatives. It maintains stable coolant circulation even at low engine speeds (800rpm), preventing overheating during idling or light-load operation. For the X15 engine, the pump keeps operating temperature within 82-90℃, ensuring optimal combustion efficiency and reducing thermal stress on cylinder heads and pistons by 40%

Engineered to endure the harsh conditions of heavy-duty engine operation, the pump features a rugged build. The pump body is precision-cast from A380 aluminum alloy with internal reinforcement ribs, resisting deformation under 150kPa coolant pressure. The shaft (40Cr alloy steel) undergoes quenching and tempering treatment (HRC 50-55) to withstand radial loads of 500N, while the bearing (double-row ball type) ensures smooth rotation with a service life of ≥300,000km. A mechanical seal (silicon carbide vs. carbon) prevents coolant leakage, with a leakage rate tested to ≤0.01mL/h—far below the industry limit of 0.1mL/h

Designed to adapt to various coolant types (ethylene glycol, propylene glycol) and operating environments, the pump exhibits exceptional resistance. The impeller and pump body interior are coated with a corrosion-resistant ceramic film (ZrO2), preventing pitting and erosion from low-quality coolant or hard water. The mechanical seal’s secondary O-ring (HNBR rubber) resists swelling and degradation in coolant, maintaining elasticity at temperatures ranging from -40℃ to 130℃. The external housing undergoes electrophoretic coating (80μm thickness), passing 1800-hour neutral salt spray testing (ASTM B117) to prevent rust in coastal or saline-alkali regions

The water pump is optimized for low noise operation and long-term cost savings. The impeller’s balanced design (dynamic balance tolerance ≤3g·cm) reduces vibration and operating noise to ≤65dB(A)—30% quieter than non-OE pumps, enhancing driver comfort. Its reliable performance prevents engine overheating, avoiding expensive repairs (e.g., cylinder head warping, piston seizure) that can cost thousands of dollars. Installation is simplified via the flange-mounted design and pre-aligned mounting holes, reducing replacement time by 40% (two technicians can complete the job in 2 hours). Backed by a 2-year/250,000km warranty, it provides consistent performance for long-haul logistics, mining, and construction applications