HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsAtlantic Automotive Enterprises 50166N Power Steering Pump
Part #: 50166N

Atlantic Automotive Enterprises 50166N Power Steering Pump

New Power Steering Pump
⚙️ 15 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦New Power Steering Pump
🚗Fitment: Audi, A4, A4 Quattro, A5, and A5 Quattro
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

OE-Style Power Steering Pump for Audi

Restore hydraulic steering performance with Atlantic Automotive Enterprises New Power Steering Pump, part number 50166N. This application-specific replacement is built for select Audi A4, A4 Quattro, A5, and A5 Quattro models with the correct OE-style fitment and hydraulic operation.

AAE’s New Power Steering Pump line focuses on OE-quality components, tested operation, and direct-fit replacement for service work on Audi steering systems.

Key Features

  • Return pipe included and preinstalled for the listed applications.
  • Each unit is 100% hydraulically tested under load in the USA.
  • Engineered to meet or exceed OE specifications for performance, fit, and function.
  • Sold without a core charge.
  • Application-specific design for select Audi A4, A4 Quattro, A5, and A5 Quattro vehicles.

Detailed Description

Atlantic Automotive Enterprises 50166N is a new hydraulic power steering pump for 2009-2012 Audi A4 and Audi A4 Quattro, plus 2010-2012 Audi A5 and Audi A5 Quattro models with PR Code 1N1 or 1N3. It is supplied with the return pipe preinstalled and is listed without a reservoir, matching the specified OE-style configuration. For buyers searching for a new power steering pump for Audi A4 Quattro or a replacement power steering pump for Audi A5, this part number 50166N provides a direct-fit service solution.

Before shipment, each pump is inspected and tested to verify hydraulic operation and fitment. The manufacturer also recommends flushing the steering system with OE-approved power steering fluid and replacing the steering fluid reservoir when installing a new pump, since a restricted reservoir can starve the replacement unit.

What It Helps Address

  • Hard or inconsistent steering effort
  • Whining or noisy hydraulic steering operation
  • Low hydraulic pressure from a worn pump
  • Leaks or failure at the original power steering pump assembly
  • Steering performance issues on Audi A4, A4 Quattro, A5, and A5 Quattro applications

Installation Notes

  • Verify PR Code 1N1 or 1N3 before ordering.
  • Confirm the vehicle uses the listed configuration with pulley, without reservoir, and with return pipe.
  • Flush the steering system before installing the new pump.
  • Use OE-approved power steering fluid only.
  • Inspect the steering fluid reservoir and replace it if restricted or contaminated.

Quality Assurance

AAE New Hydraulic Power Steering Pumps are manufactured with OE-quality components and tested in the USA under load before shipment. Part number 50166N is built to meet OE-style performance and fitment expectations for the listed Audi applications. This part cross-references 8K0145153F for the same application.

BrandAtlantic Automotive Enterprises
Part Number50166N
PositionNew Power Steering Pump
Application TypeApplication specific
Bullet Point 1Return pipe included and preinstalled.
Bullet Point 2Each unit is 100% hydraulically tested under load in the usa.
Bullet Point 3Aae pumps are engineered to meet or exceed oe specifications in p
Bullet Point 4It is highly recommended to replace steering fluid reservoir when
Bullet Point 5Aae new p/s pumps are sold without a core charge.

This part fits 15 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2012AudiA42.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2012AudiA4 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2012AudiA52.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2012AudiA5 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2011AudiA42.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2011AudiA4 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2011AudiA52.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2011AudiA5 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2010AudiA42.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2010AudiA4 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2010AudiA52.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2010AudiA5 Quattro2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2009AudiA4Sedan2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2009AudiA4 QuattroSedan2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2009AudiA4 QuattroWagon2.0LL4N/ANew, w/PR Code 1N1, 1N3, w/Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

8K0145153F

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.