Atlantic Automotive Engineering Power Steering Pump P/N:5663N
Atlantic Automotive Engineering 5999N power steering pump for the 2007-2012 Mercedes-Benz GL450 and other vehicles replaces a failed hydraulic pump in the steering system. This new pump is built with OE quality components and checked for OE operation and fitment.
A whine when you turn the wheel, heavy steering or fluid around the pump can mean the pump is wearing out. Before replacing it, look over the hoses, fittings and reservoir with the engine off for leaks or clogging, since those can show similar signs.
The 2007-2012 Mercedes-Benz GL450, the 2008-2012 Mercedes-Benz GL550 and the 2010-2012 Mercedes-Benz GLK350 are among the vehicles this power steering pump fits, and it fits more; each takes one. Open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
One power steering pump with its pulley and a return pipe adapter. The reservoir, reservoir cap and filter are not included.
Interchange: 0054662001 · 0054662201
This part cross-references / interchanges with the following part numbers:
Is this a 2007-2012 Mercedes-Benz GL450 power steering pump?
Yes. The Atlantic Automotive Engineering 5999N fits the 2007-2012 Mercedes-Benz GL450, and each vehicle takes one pump.
Does the Atlantic Automotive Engineering 5999N come with a pulley and reservoir?
The Atlantic Automotive Engineering 5999N includes the pulley and a return pipe adapter. The reservoir, reservoir cap and filter are not included.
Is the shaft on this power steering pump heat treated?
Yes. The upgraded shaft is heat treated to prevent premature failure, and each pump is 100% hydraulically tested under load in the USA.
What can a whining or stiff power steering pump mean?
A whine when turning, stiff steering or fluid leaking at the pump can mean the pump is wearing out. A shop can pressure-test the running system to confirm.
Should I replace the reservoir when installing the 5999N pump?
Yes, replacing the reservoir is highly recommended, because a clogged reservoir can starve the replacement pump. Flush and fill the system with an OE approved power steering fluid as well.
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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.