ABS Pump
ABS Hydraulic Unit. Porsche 993
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 C4 / C4S / Turbo
M224 - for cars with Automatic limited slip differential
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Related, superseded, cross reference or alternative numbers for comparison.
99335595550
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12 Month Warranty
Worldwide Delivery
ABS pump with pressure switch. Porsche 964 / 993
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C4S 1994-97

Fits:
Porsche 964 C4
Porsche 964 Carrera RS
Porsche 993 C4/C4S (Not for TURBO-LOOK)
Porsche 993 Carrera RS
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99335595302
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Porsche Hydraulics & ABS Pumps | Precision Braking & Stability Control Performance
Hydraulic systems and ABS pumps are essential to your Porsche’s braking and traction control systems. The ABS (Anti-lock Braking System) pump regulates brake fluid pressure during hard braking, preventing wheel lockup and maintaining grip. Together with hydraulic control units, these components ensure safe, balanced, and responsive braking under all conditions.
At Design911, we supply premium hydraulic units and ABS pumps that meet or exceed original performance specifications. Built from precision-machined materials and designed for exact pressure regulation, our components deliver consistent braking performance, long-term reliability, and improved safety across all Porsche models.
Whether you’re restoring a classic system or servicing a modern Porsche with advanced driver aids, our hydraulic and ABS components ensure stable, dependable performance mile after mile.
What Do Hydraulic Systems & ABS Pumps Do?
Hydraulic units and ABS pumps manage brake pressure and hydraulic flow within the braking system to provide precise control and improved stability.
Core Functions:
- ABS
Pump: Prevents wheel lock by modulating brake pressure during heavy
braking.
- Hydraulic
Unit: Distributes fluid to maintain even brake force across all
wheels.
- Supports traction and stability control functions.
- Enhances braking response and driver confidence.
- Maintains consistent brake pressure in all road conditions.
Without a functioning ABS pump or hydraulic control unit, braking performance can degrade dramatically, increasing stopping distances and risking wheel lock or skidding.
Why Do Hydraulics & ABS Pumps Fail or Malfunction?
Because they operate under high pressure and heat, hydraulic systems and ABS pumps can wear or fail over time.
Common Causes of Failure Include:
- Internal corrosion from moisture-contaminated brake fluid.
- Electrical failure in the ABS control module or pump motor.
- Clogged or leaking hydraulic valves.
- Damaged seals or worn solenoids.
- Overheating due to prolonged or aggressive braking.
When these components fail, you may experience warning lights on the dashboard, pulsating brakes, or complete loss of ABS and traction control functionality.
Why Replace or Upgrade Your Porsche Hydraulic or ABS Pump?
Replacing a worn or faulty hydraulic system or ABS pump restores full braking efficiency, improves safety, and ensures proper communication between brake and stability systems.
Key Benefits:
- Restores responsive, balanced braking performance.
- Prevents loss of ABS and traction control functions.
- Eliminates brake pedal pulsation and system warning lights.
- Ensures correct fluid pressure distribution across all wheels.
- Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, Cayenne, and classic models.
- Ideal for maintenance, system overhauls, or performance upgrades.
Regular brake fluid servicing and inspection help extend the lifespan of your ABS pump and hydraulic components.
Highlights
- Precision-engineered Porsche hydraulic and ABS pump units.
- Designed for reliability, pressure accuracy, and safety.
- Direct-fit replacements for both modern and classic Porsche models.
- Prevents brake fade, lockup, and traction loss.
- Essential for performance driving, restoration, or safety repairs.
- Built from corrosion-resistant materials for long-lasting service life.