Bosch Power Steering Pump P/N:KS01000594
Keep steering effort light and predictable with the Bosch Hydraulic Power Steering Pump KS01000604. It drops in as a direct-fit replacement for the 2006-2007 Mercedes-Benz C230, 2006 C280, 2006 C350, 2006 CLK350, 2007-2012 GL450, 2008-2012 GL550, 2006-2011 ML350, 2008-2011 ML550, 2006-2009 R350, and the 2006-2007 SLK280 and SLK350 — see the Buyer's Guide tab for the full engine-level list. Manufactured to original equipment specifications, it generates the hydraulic pressure your steering system needs for smooth, consistent assist across driving conditions.
Signs the original pump may need replacing include a whining or groaning noise when turning, heavy or stiff steering effort, fluid leaks, or inconsistent assist. Backed by a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks.
Interchange: 0044667901 · 0044668501 · 0054662201
This part cross-references / interchanges with the following part numbers:
What does this power steering pump do?
It generates the hydraulic pressure the steering system uses to provide power assist, making the wheel easier to turn at low speeds and while parking.
Will this Bosch pump fit my vehicle?
It's a direct-fit replacement for the listed Mercedes-Benz models, including the C230, GL450, ML350, R350, and SLK350. Check the Buyer's Guide tab to confirm your exact year and engine.
Does it come with the pulley and reservoir?
Yes. This unit is supplied with a pre-assembled pulley, mounting bracket, and reservoir to help make installation faster and more straightforward.
What are signs my power steering pump is failing?
Common signs include a whine or groan when turning, stiff or heavy steering effort, fluid leaks, and inconsistent assist. Diagnose the cause before replacing, as other components can produce similar symptoms.
Is this pump tested before shipping?
Yes. Each unit is 100% functionally tested to meet or exceed OE quality standards and to confirm leak-free, reliable operation.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.