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Power Steering Pipes / Hoses / Radiators

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DISPLAYING 1 to 16 (of 20 products)
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Special Order item
00004330574
Product Information
Product Information
Power steering fluid.  1 Litre

Pentosin Hydraulic System Fluid

porsche

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00004330574
00004320656
00004330574

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Special Order item
99923054340
Product Information
Product Information
Power steering line seal set, Pressure line to rack.
Sold each.

Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1  Cayman 2006 - 2008
Porsche 996 Carrera 1998 - 2005
Porsche 996 Turbo 2000 - 2005
Porsche 996 GT3 1999 - 2005
Porsche 997.1 Carrera 2005 - 2008
Porsche 997.1 Turbo 2007 - 2009
Porsche 997.2 GT2-RS 2010 - 2013

Diagram ref no 17

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99923054340
99923054340

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Special Order item
99923054240
Product Information
Product Information
Power steering line seal, return line to rack.
Sold each.

Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1  Cayman 2006 - 2008
Porsche 996 Carrera 1998 - 2005
Porsche 996 Turbo 2000 - 2005
Porsche 996 GT3 1999 - 2005
Porsche 997.1 Carrera 2005 - 2008
Porsche 997.1 Turbo 2007 - 2009
Porsche 997.2 GT2-RS 2010 - 2013

Diagram ref no 18

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99923054240
99923054240

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Special Order item
99734756000
Product Information
Product Information
Power steering pressure line holder, for RHD cars

porsche

Fits:
for RHD cars
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12

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Diagram ref no 20

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99734756000
99734756000

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Special Order item
98734744305
Product Information
Product Information
Power steering pressure line, Rear.

porsche

Fits:
Porsche 987C.1 Cayman 2005-08

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Diagram ref no 11

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98734744305
98734744305
98734744304

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Special Order item
99734756412
Product Information
Product Information
Power steering pressure line, for RHD cars.

porsche

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987C.2 Cayman 2009-12
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Porsche 997 GT3 2007-11

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Diagram ref no 17

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99734756412
99734756411
99734756412

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Special Order item
9A134744316
Product Information
Product Information
Power steering pressure line.

porsche

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987.2C Cayman 2009-12

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Diagram ref no 7
Special Offer
9A134744316/1
Product Information
Product Information
Power steering pressure line.

oematch

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987.2C Cayman 2009-12

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Diagram ref no 7

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9A134744316
10415020
9A134744316
9A134744315
9A134744314
9A134744313
9A134744312

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Special Order item
99734756404
Product Information
Product Information
Power steering pressure line.

porsche

Fits:
For RHD Cars
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo / GT2 2007-10
Porsche 997.1 GT3 >>2008
Porsche 997.2 GT2 RS
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08

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Diagram ref no 22

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99734756404
99734756404
99734756403
99734756402

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98734743905
Product Information
Product Information
Power steering return line.

porsche

Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 12



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98734743905
98734743905
98734743901
98734743904

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Special Order item
98734744907
Product Information
Product Information
Power steering return line for LHD cars.

porsche

Fits:
For LHD cars
Porsche 987 Boxster / Boxster S 2005-08
Porsche 987C Cayman 2005-08 (not for S models)
Porsche 997.1 Turbo 2007-10
Porsche 997.2 GT2 RS 2011-13

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Diagram ref no 2

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98734744907
98734744907
98734744905
98734744903

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Special Order item
98734765004
Product Information
Product Information
Power steering return line, RHD cars only.

porsche

Fits:
Porsche 987.1 Cayman 2005-08 RHD cars

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Diagram ref no 2

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98734765004
98734765004
98734765003

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Special Order item
9A134743921
Product Information
Product Information
Power steering return line.

porsche

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987C.2 Cayman 2009-12

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Diagram ref no 8

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9A134743921
9A134743921
9A134743920
9A134743915
9A134743916
10415019

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Special Order item
99734746204
Product Information
Product Information
Power steering return line. For RHD cars

porsche

Fits:
For RHD cars only
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2006-08
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo 2007-09
Porsche 997.2 GT2 RS 2010-13
Porsche 997 GT3 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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99734746204
99734746204
99734746203
99734746202
99734746201

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Special Order item
9P1698009
Product Information
Product Information
Repair kit hydraulic pipe comprising spring and o-ring. 

porsche

Fits: 
Porsche 987.2 Boxster / Cayman - 2009 to 2012
Porsche 997.2 - 2009 to 2012
Porsche 991.1 - 2012 to 2016
Porsche 991.2 - 2016 to 2019
Porsche 991 turbo - 2012 to 2019
Porsche 970 Panamera - 2010 to 2016

For power steering of PDDC hydraulic lines

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Diagram ref no 21


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9P1698009
99734794500
9P1698009

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Special Offer
99734701208P
Product Information
Product Information

Replacement Pipes (Steel) For RHD Steering Rack (Pair)
For Right Hand Drive Cars ONLY!  

Other than buying a completely new steering rack or having your existing steering rack refurbished, which are both very expensive options, we now offer replacement steering rack pipes which are normally not available separately, the two replacement pipes fit to the steering rack, these pipes normally deteriorate. The steering rack of a power-assisted car needs a hydraulic circuit: a pressure line (high pressure) from the power steering pump (or pump + reservoir assembly) to the steering rack, and a return line (low pressure) from the rack back to the reservoir (or pump return side). 


oematch

Fits:

  • ·         Porsche Boxster 987 2.7L 2005 -08/08
  • ·         Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • ·         Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • ·         Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • ·         Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • ·         Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  • ·         Porsche 997 MK1 TURBO 2007-09
  • ·         Porsche 997 MK1 GT3 2007-09
  • ·         Porsche 997 MK1 GT2 2007-09
  • ·         Porsche 997 MKII Carrera C2 3.6L 2009-12
  • ·         Porsche 997 MKII Carrera C4 3.6L 2009-12
  • ·         Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • ·         Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • ·         Porsche 997 MKII GT3 2010-11
  • ·         Porsche 997 MKII Turbo 2010-13
  • ·         Porsche 997 MKII GT2 RS 2011-13
  • ·         Porsche Cayman 2.7L 987C 2006-08
  • ·         Porsche Cayman S 3.4L 987C 2005-08



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99734701208P
99634701208
99634701205
996347012087
99634701210

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DISPLAYING 1 to 16 (of 20 products)
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About Power Steering Pipes / Hoses / Radiators

Porsche Power Steering Pipes, Hoses & Radiators | Design911 Hydraulic Components for Precision Steering

Power steering pipes, hoses, and radiators are vital for maintaining smooth, responsive steering performance in your Porsche. These components transport and cool the hydraulic fluid that powers the steering system, ensuring precise control, minimal resistance, and consistent handling under all driving conditions. A well-maintained hydraulic circuit not only enhances steering feel but also protects your steering pump, rack, and associated components from wear and overheating.

At Design911, we offer an extensive selection of power steering pipes, hoses, and cooling radiators, engineered for exact fitment, reliability, and high-pressure performance. Manufactured using durable materials such as reinforced rubber, stainless steel, and aluminium, our range is ideal for servicing, restoration, and performance upgrades — keeping your Porsche’s steering system operating at its sharpest.

What Do Power Steering Pipes, Hoses & Radiators Do?

Power steering pipes and hoses transfer hydraulic fluid between the pump, rack, and reservoir, while radiators (or coolers) regulate fluid temperature for consistent performance.

Core Functions:
• Deliver hydraulic fluid to assist steering input.
• Maintain consistent pressure within the steering circuit.
• Prevent overheating of steering fluid during high-load use.
• Ensure responsive, effortless steering at all speeds.
• Reduce wear on the pump, seals, and steering rack.

Together, these parts form the backbone of your Porsche’s power steering system, ensuring smooth handling and precise feedback whether on the road or track.

Why Do Power Steering Components Fail or Degrade?

Continuous heat, pressure, and exposure to fluids can cause deterioration of hoses and pipes over time, while radiators may corrode or leak.

Common Causes of Failure Include:
• Cracked or brittle hoses from age or heat exposure.
• Corrosion or pitting in metal pipes.
• Leaks at joints or seals from fluid pressure fluctuations.
• Blocked or damaged steering coolers reducing efficiency.
• Contamination of hydraulic fluid causing internal wear.

When these components fail, drivers may experience stiff steering, fluid leaks, noise, or overheating — all of which can lead to expensive steering system damage if left unaddressed.

Why Replace or Upgrade Your Porsche Power Steering Pipes, Hoses & Radiators?

Replacing or upgrading these components restores safe, consistent hydraulic operation and improves overall steering precision. High-quality materials and modern design offer improved durability, pressure resistance, and corrosion protection.

Key Benefits:
• Restores smooth, consistent steering response.
• Prevents fluid leaks and overheating.
• Extends life of steering pumps and racks.
• Constructed from premium, heat- and pressure-resistant materials.
• Fits Porsche 911, 944, 968, Boxster, Cayman, Cayenne, and Macan models.
• Ideal for restorations, repairs, or performance upgrades.

Design911’s Porsche power steering pipes, hoses, and radiators provide durability, precision, and reliability — ensuring confident handling and performance on every drive.

Highlights

• Premium Porsche power steering hoses, pipes, and cooling radiators.
• Engineered for precision fitment and leak-free performance.
• Reinforced construction for high-pressure durability.
• Corrosion-resistant and temperature-stable materials.
• Suitable for both classic and modern Porsche models.
• Perfect for maintenance, restoration, or upgrades.

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