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Brake hose Genuine Porsche part 99335506004

Code: 99335506004

Genuine Porsche part

Brake hose

The product code 99335506004 was also found on these diagrams

604-10 - brake hose

brake lines front axle underbody rear axle 993 1994-98

604-12 - brake hose

brake lines front axle underbody 993 M224, 993 M339 (All-wheel drive) 1995 onwards, 993 TURBO and 993 CARRERA RS 1994-98

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

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4 4 4 4

Caliper brake hose, REAR. Porsche 993 C2/C4 up to >>09.1994

99335506004/1

Product Information

Caliper Brake Hose, REAR.
The OE Match Rear Brake Caliper Hose is a premium-quality replacement flexible brake hose designed to deliver hydraulic brake fluid from the rigid brake line to the rear brake caliper on compatible Porsche models. Manufactured to OE specifications for fit, pressure resistance and durability, this brake hose ensures consistent hydraulic pressure is transferred to the rear braking system, providing safe, responsive and reliable braking performance.

Fits:

Porsche 993 (911) C2 1994-97
Porsche 993 (911) C4 1994-97
Porsche 993 (911) RS 1994-97
Porsche 993 (911) C2S 1994-97
Porsche 993 (911) C4S 1994-97
Porsche 993 (911) TURBO 1994-96

Diagram Ref No 14

Constructed from high-strength, multi-layer reinforced rubber with corrosion-resistant OE-style metal end fittings, the hose is engineered to withstand extreme hydraulic pressures, repeated flexing, road debris, moisture and temperature fluctuations. Precision-manufactured for direct OE-style fitment, it provides a secure, leak-free connection while allowing unrestricted suspension and wheel movement.

What This Product Does:

Transfers hydraulic brake fluid to the rear brake caliper.
Maintains consistent hydraulic braking pressure.
Allows suspension and steering movement without stressing the brake line.
Provides a secure, leak-free hydraulic connection.
Supports smooth, responsive braking performance.
Withstands high brake system pressures and temperatures.
Helps maintain balanced rear braking performance.
Forms an essential part of the vehicle's hydraulic braking system.

Symptoms Of Wear Or Failure:

Brake fluid leaks around the hose or fittings.
Soft or spongy brake pedal.
Cracked, split or perished rubber hose.
Bulging hose when brake pressure is applied.
Corroded or damaged metal fittings.
Reduced rear braking performance.
Brake warning light caused by low brake fluid.
Brake caliper sticking due to internal hose collapse.
Uneven brake pad wear.
MOT or vehicle inspection failure due to deteriorated brake hose condition.

Why Replacement Matters:

Brake hoses are subjected to constant hydraulic pressure, repeated suspension movement, high braking temperatures and continuous exposure to road salt, moisture and debris. Over time, the rubber hose can deteriorate internally and externally, while corrosion may affect the metal fittings, increasing the risk of fluid leaks or restricted brake fluid flow.
A failing brake hose can reduce braking performance, create an inconsistent brake pedal feel and, in severe cases, lead to partial or complete hydraulic brake failure. An internally collapsed hose may also prevent brake fluid from returning correctly, causing the rear brake caliper to bind and accelerating brake pad and disc wear.
Replacing a worn or damaged rear brake caliper hose restores safe, consistent hydraulic pressure and reliable braking performance. The OE Match replacement provides factory-style fitment, premium-quality reinforced construction and long-lasting durability, helping maintain the braking performance, safety and reliability expected from your Porsche.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99335506004

99335506002

99335506003

99335506004

The product you are viewing cross references to these numbers

5 5 5 5 5

Caliper brake hoses SET OF 4, Front & Rear. Porsche 993 up to >>09.1994

99335513902/1.2KIT

Product Information

Front & Rear caliper brake hose for Porsche 993 up to >>09.1994 — part number 99335513902 & 99335513902. A direct-fit replacement hose for the left or right front and rear calipers that matches original length, end fittings and mounting support. Designed to restore correct hydraulic feel and eliminate the safety risks of aged flexible hoses (leaks, swelling, collapse).
SET OF 4

front

Porsche 993 up to >>09.1994

Why these should be replaced:

Flexible rubber brake hoses age with heat, road grime and brake fluid exposure — they can dry-rot, crack, bulge or leak, creating an immediate safety hazard. Even without visible leaks, inner-liner deterioration or partial collapse can cause a soft/spongy pedal and uneven braking. Replacing old hoses with correct-fit OE hoses restores reliable pedal feel and prevents catastrophic fluid loss.

Common issues & failure modes:

External cracking / dry rot from UV, heat and age — visible on inspection.
Fluid leaks at hose body or end fittings due to perished rubber or corroded threads.
Internal liner collapse (not visible) — causes restricted flow, delayed pressure build and a soft brake pedal.
Mounting damage / chafing where the hose rubs against suspension parts — can wear through the outer cover and cause sudden failure. The OEM-style support/grommet helps prevent this.

Diagram ref no 1 & 16

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99335513902

99335513900

96435513900

99335513902

99335513901

99335506004

The product you are viewing cross references to these numbers

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Brake hose Genuine Porsche part 99335506004