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Power Steering Pumps

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00004330574
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Power steering fluid.  1 Litre

Pentosin Hydraulic System Fluid

porsche

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99631409104
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Power Steering Pump Bracket.

porsche

Fits:
Porsche 996 GT3 1999-05

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Diagram ref no 3

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99631409104
99631409104
99631409103
99631409102

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99631422351
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Power steering tank cap.

porsche

Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

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Diagram ref no 12

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99631422351
99631422351

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99631405053/1
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Replacement power steering pump.

oematch

Fits:
Porsche 996 Turbo 2001-05 - Tiptronic transmission only.
Porsche 996 GT2 2001-05
Porsche 996 GT3 / GT3 RS 1999-05
--
Porsche 997.1 Turbo 2007-09 - Tiptronic transmission only.
Porsche 997 GT2 / GT2 RS 2007-13
Porsche 997 GT3 / GT3 RS / GT3 RS 4.0L 2007-11


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99631405052
99631405053
996314050BX
996314050DX
996314050DU

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About Power Steering Pumps

Porsche Power Steering Pumps, Hoses & Radiators | Design911 Hydraulic Components for Smooth & Precise Handling

Power steering pumps, hoses, and radiators are the key components that ensure your Porsche’s steering system operates smoothly, quietly, and efficiently. The power steering pump pressurises hydraulic fluid, while hoses transport it throughout the system, and radiators (or coolers) regulate temperature to prevent overheating. Together, these components provide effortless steering control, precise feedback, and the responsive handling that defines Porsche driving performance.

At Design911, we offer a comprehensive range of power steering pumps, hoses, and radiators engineered for precision fitment, durability, and high-pressure operation. Manufactured using premium materials, each component is designed to perform under demanding conditions — whether for daily driving, performance tuning, or restoration projects. Our range helps maintain steering precision, extend component life, and deliver long-term reliability.

⚙️ What Do Power Steering Pumps, Hoses & Radiators Do?

These interconnected components form the core of your Porsche’s hydraulic steering system, providing consistent power assist and cooling for maximum control.

Core Functions:
• The pump generates hydraulic pressure to assist steering input.
• Hoses and pipes transport pressurised fluid throughout the system.
• The radiator (cooler) regulates temperature for consistent operation.
• Maintain smooth, controlled steering effort at all speeds.
• Protect the steering rack and pump from overheating and wear.

This system ensures that steering remains light yet responsive — essential for both precision handling and driver comfort.

Why Do Power Steering Components Fail or Degrade?

Due to constant exposure to heat, pressure, and fluid flow, these components are subject to gradual wear and degradation over time.

Common Causes of Failure Include:
• Leaks from aged seals, fittings, or cracked hoses.
• Contaminated or deteriorated steering fluid reducing lubrication.
• Pump bearing or vane wear from low or dirty fluid.
• Corrosion or pitting in metal pipes and radiators.
• Blocked cooling circuits leading to overheating.

Failure in any of these parts can cause noise, fluid leaks, stiff steering, or even total system failure — making timely replacement critical for safety and reliability.

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

Replacing worn or damaged power steering components restores hydraulic pressure, cooling efficiency, and overall steering feel. Upgrading to improved materials enhances longevity and performance, particularly for high-demand or motorsport applications.

Key Benefits:
• Restores smooth, responsive steering performance.
• Eliminates leaks, whine, or vibration from failing components.
• Extends the life of steering racks and seals.
• Constructed from corrosion- and heat-resistant materials.
• Available for Porsche 911, 944, 968, Boxster, Cayman, Panamera, Cayenne, and Macan models.
• Ideal for maintenance, restorations, or high-performance upgrades.

Design911’s Porsche power steering pumps, hoses, and radiators combine engineering precision, reliability, and superior materials — ensuring your Porsche’s steering stays sharp, responsive, and fluid.

Highlights

• Premium Porsche power steering pumps, hoses, and radiators.
• Engineered for precision fitment and reliable performance.
• High-pressure and temperature-resistant materials.
• Reduces steering effort and enhances handling comfort.
• Suitable for both classic and modern Porsche models.
• Perfect for servicing, restoration, or performance tuning.

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