J.C. Whitney JRM51040003 OEM Replacement Power Steering Pump Without Reservoir

The J.C. Whitney JRM51040003 is a direct-fit, OEM replacement power steering pump designed for the Mercedes-Benz GL320, ML320, and R320 equipped with the 3.0L V6 diesel engine. This pump restores proper hydraulic power assist to the steering system, eliminating common symptoms such as stiff steering, whining noises, and loss of steering responsiveness.

Key Features:

• Direct OEM replacement — engineered to match the fit, form, and function of the original factory pump
• Sold without the fluid reservoir — reuse your existing reservoir for a straightforward swap
• Compatible with cross-reference OEM part numbers including 0064663101, 006466310160, 006466310180, and 21-432
• Manufactured to meet or exceed original equipment specifications for reliable, long-lasting performance
• Corrosion- and wear-resistant construction for durability in demanding driving conditions
• New (not remanufactured) unit for maximum service life

This power steering pump is a bolt-on replacement for vehicles that have experienced pump failure or fluid leaks. The reservoir-excluded design allows technicians to retain the original reservoir and related hardware, simplifying the installation process. Always flush and refill the power steering system with the manufacturer-recommended fluid upon installation.