03.7718-5018.1 Vacuum Brake Booster Oil Seal
This vacuum brake booster oil seal is referenced by part number 03.7718-5018.1. It is intended as a replacement sealing component for selected SEAT, Audi, Škoda, Volvo, Volkswagen and Mercedes applications listed on the product page.
This product is an individual vacuum brake booster oil seal, not a complete brake booster assembly. The product page states that the seal can be ordered individually.
Reference Numbers
- 03.7718-5018.1 — primary product reference shown on the listing
- KL03771850181 — product SKU, not identified as an OEM number
Part Type
- Vacuum brake booster oil seal
- Brake booster sealing component
- Individual replacement seal
- Not a complete vacuum brake booster assembly
What This Part Does
The oil seal helps maintain sealing within the vacuum brake booster system. When the seal becomes unusable and vacuum leakage develops, the brake pedal may become significantly harder to press and greater pedal effort may be required.
Compatible Vehicles
According to the product listing, this vacuum brake booster oil seal is suitable for selected vehicles from the following brands:
- SEAT
- Audi
- Škoda
- Volvo
- Volkswagen
- Mercedes
The product page does not specify exact vehicle models, model years, engine codes or engine displacement. Compatibility should therefore be confirmed using the existing part reference and physical application before ordering.
Common Symptoms of Seal Failure
- Hissing noise near the brake pedal area
- Brake pedal becoming unusually hard to press
- Increased effort required to operate the brake pedal
Why Choose This Replacement Seal
- Allows replacement of the individual brake booster oil seal without purchasing a complete booster assembly
- Targets vacuum leakage symptoms associated with a worn or unusable seal
- Supplied as an individual replacement component
Important Before Ordering
- Verify that your existing part or application corresponds to reference 03.7718-5018.1.
- Do not rely on vehicle brand alone to confirm compatibility.
- The product page does not provide exact models, years, engine codes, dimensions or technical material specifications.
- This product is an individual oil seal and not a complete vacuum brake booster assembly.
What does 03.7718-5018.1 fit?
The product page lists selected SEAT, Audi, Škoda, Volvo, Volkswagen and Mercedes vehicles. Exact models, years and engine specifications are not provided, so compatibility should be verified using the existing part reference and application.
Is 03.7718-5018.1 an OEM or ATE part number?
The product page uses 03.7718-5018.1 as the primary product reference but does not explicitly identify it as an OEM number or attribute it to ATE.
What does a vacuum brake booster oil seal do?
The seal helps maintain sealing within the vacuum brake booster system. A failed seal may allow vacuum leakage and affect brake pedal assistance.
What symptoms can indicate vacuum brake booster oil seal failure?
The product listing describes a hissing noise near the brake pedal, a brake pedal that becomes unusually hard to press and increased pedal effort as relevant symptoms.
Is this a complete vacuum brake booster?
No. This product is an individual vacuum brake booster oil seal and is not a complete brake booster assembly.
How do I confirm compatibility before ordering?
Verify that your existing component or application corresponds to reference 03.7718-5018.1. Because the product page does not list exact models, years, engines or dimensions, vehicle brand alone should not be used to confirm fitment.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings