Product Information
Product Information
Front caliper brake hose for Porsche 911 (964 / early 993) — part number 99335513902. A direct-fit replacement hose for the left or right front caliper 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) 2pcs required per car
Sold as singles 

- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) TURBO 1994-96
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.
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Diagram ref no 1
Related reference numbersRelated, superseded, cross reference or alternative numbers for comparison.
99335513902 99335513900
96435513900
99335513902
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