Keep steering assist smooth and predictable with the Atlantic Automotive Engineering 5531N. This new hydraulic power steering pump is a direct replacement for a failed original unit on the 2000-2004 Subaru Outback, 2000-2004 Subaru Legacy and 2003-2006 Subaru Baja. The pump pressurizes the steering fluid that provides hydraulic assist, and every unit is 100% tested in the USA before it ships. See the "Vehicles it fits" section for engine details.
- Tested under load: Each pump is hydraulically tested under load in the USA. It is also inspected to confirm OE operation and fitment.
- Pulley and sensor included: The pulley comes with the pump, and the sensor arrives preinstalled. The reservoir is not included.
- OE-level engineering: The pump is built with OE-quality components and engineered to match or surpass OE specs for performance, fit and function.
- No core charge: This new pump is sold without a core charge.
For a 2000-2004 Subaru Outback power steering pump replacement, AAE strongly recommends replacing the steering fluid reservoir at the same time, because a clogged reservoir can starve the new pump. Flush the system and refill it with an OE-approved power steering fluid to help protect the pump's life and normal operation.
Signs a power steering pump may need replacing include a whining or groaning noise when turning, heavier steering effort, or fluid leaking from the pump. Diagnose the cause first, since low fluid, a worn belt or other steering components can cause the same symptoms.
Interchange: 34401AE03B · 34430AE04A · 34430AE04B · 34430AE04C
This part cross-references / interchanges with the following part numbers:
34401AE03B, 34430AE04A, 34430AE04B, 34430AE04C
Frequently Asked Questions
Does this power steering pump come with a reservoir?
No. The 5531N ships without a reservoir. AAE highly recommends replacing the reservoir along with the pump, because a clogged one can starve the replacement pump.
Is the pulley included?
Yes. The pulley is included, and the sensor comes already installed on the pump.
Is this the right 2003 Subaru Outback power steering pump?
The 5531N is listed for the 2000-2004 Subaru Outback, so a 2003 model is covered. Check the "Vehicles it fits" section to confirm the engine details for your vehicle.
How is the pump tested?
Each unit is 100% hydraulically tested under load in the USA before shipment. It is also inspected to confirm OE operation and fitment.
What should I do when installing it?
Flush the steering system and refill it with an OE-approved power steering fluid. AAE also recommends replacing the reservoir, since a clogged reservoir can starve the new pump.
