Audi A8/S8 Power Steering Return Hose / Line 4H1422891AP

OEM Part #: 4H1-422-891-AP (4H1422891AP)

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The OEM Power Steering Return Hose (Part Number: 4H1422891AP) is a crucial component designed for optimal hydraulic fluid transfer in Audi vehicles. This genuine factory-original part is compatible with the 2013-2016 Audi A8 Quattro and S8 models, specifically the 4.0L V8 gasoline engines. Located between the power steering gear and cooler, it plays a vital role in the power steering system, ensuring smooth steering performance. Common issues such as leaks or diminished steering responsiveness often arise from a worn or damaged return hose. Utilizing this authentic return line ensures restored functionality and reliability. Alternative names for this part include Return Line or Hose. Additional compatible part numbers include 4H0422887P, 4H1422893BG, and others. Rest assured, this is a direct replacement part sourced from salvage vehicles, maintaining the performance and integrity expected from Audi engineering.

Specifications

Specifications for Power Steering Return Hose / Line 4H1422891AP
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4H1-422-891-AP (4H1422891AP)
CategorySteering

Compatible Vehicles

Fits 15 vehicle configurations across 1 make, 2013-2018.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A8 2013-2018 · 9 variants
  • S8 2013-2018 · 6 variants
View all 15 vehicle configurations
Full vehicle fitment list for Power Steering Return Hose / Line 4H1422891AP
Year Make Model Trim Engine Note
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2013 Audi S8 Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2014 Audi S8 Sedan 4.0L V8 Turbo
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2015 Audi S8 Sedan 4.0L V8 Turbo
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2016 Audi S8 Sedan 4.0L V8 Turbo
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2017 Audi S8 Sedan 4.0L V8 Turbo
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2018 Audi S8 Sedan 4.0L V8 Turbo

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