Precision Remanufacturing for Cummins ISX Cooling Systems

The Turbo Kings remanufactured Cummins ISX Water Pump (4386576) restores the engine’s cooling efficiency through a controlled rebuild process that meets OEM hydraulic and mechanical standards. Each core undergoes complete disassembly, thermal and chemical decontamination, and ultrasonic bath treatment to remove scale and oxidation.

Machining technicians resurface mount faces and bearing bores to OEM flatness and roundness tolerances before installing new shafts and bearings. Dynamic balancing is performed on both rotational axes to eliminate vibration and maximize bearing longevity under high-RPM load conditions. The result is a pump that delivers steady flow and pressure in severe-duty linehaul and industrial applications.

Seal Integrity and Flow Efficiency

Turbo Kings uses high-temperature, dual-seal systems rated for modern extended-life coolants and pressures beyond 35 PSI. Seal faces are lapped to mirror finish and mounted in precision-machined cavities for a perfect seal interface.

The impeller is restored or replaced to its original curvature profile to ensure balanced coolant distribution across the ISX head and block galleries. Each unit undergoes flow verification to confirm OEM output volume and temperature stability throughout the engine’s operating range. Optimized hydraulics and seal retention mean improved cooling efficiency and a longer service interval between overhauls.

What Makes Turbo Kings Different

Every Turbo Kings ISX pump is individually rebuilt —not batch processed. Each casting is crack-tested, bore-gauged, and measured for porosity before reassembly. New OEM-grade bearings and hardened shafts are installed with micrometer-verified preload to guarantee alignment and longevity.

Final builds are pressure tested under simulated operating temperatures to detect even the slightest seepage. Technicians record torque, runout, and flow data for each serial-numbered pump — a level of traceability rarely found outside OEM production lines. This process produces a reman pump that performs equal to or better than new.

Our Process at a Glance

• Disassembly & Cleaning: Complete teardown and multi-stage thermal and ultrasonic cleaning.

• Inspection & Machining: Housing and shaft bores restored to OEM tolerance.

• Bearing & Seal Replacement: Installed new with verified clearances.

• Impeller Reprofiling: Balanced and calibrated for original flow output.

• Pressure Testing: Leak and flow validation under hot-cycle simulation.

• Warranty: 6-Month / Unlimited Mileage coverage.

Why Fleets and Owner-Operators Trust Turbo Kings

Turbo Kings brings engineering-grade discipline to every remanufactured ISX water pump. Our controlled inspection and dynamic balancing processes ensure OEM-spec performance for the 4386576 unit, delivering reliable cooling and zero leak tolerance for thousands of miles.

This pump represents the pinnacle of remanufactured quality — precision built, pressure tested, and validated for real-world operation by Turbo Kings technicians who understand the demands of the Cummins ISX platform.