Vacuum Brake Booster Oil Seal – ATE 03.7718-5028.1 | Universal
A failed vacuum brake booster shaft oil seal allows engine oil to enter the brake booster vacuum circuit — causing a "stiff" brake pedal, degraded brake feel, and internal booster damage. This ATE replacement seal restores a leak-free booster shaft seal and protects the booster from oil contamination.
Fits OEM #03.7718-5028.1.
What's Included
- 1 × Vacuum Brake Booster Oil Seal
OEM Part Numbers and Vehicle Fitment
Additional confirmed fitment
- VOLKSWAGEN CC (358) 2011 - 2016
- VOLKSWAGEN Passat (B6 3C2, B7 362) 2005 - 2014
- VOLKSWAGEN Passat Variant (3C5, 365) 2005 - 2014
- VOLKSWAGEN Passat CC (357) 2008 - 2012
- VOLKSWAGEN Sharan (7N1, 7N2) 2010
- VOLKSWAGEN Tiguan (5N) 2007
- SEAT Alhambra (710, 711) 2010
- AUDI Q3 (8U) 2011-2018
Part Number / PN
03.7718-5028.1, 3C1614106N, 03.7873-4502.4, 3C1614106R, 26774524004, 03.7718-2912.1
Important Fitment Check
Before ordering, compare the part design, dimensions, connectors, and every available OEM/P/N marking with the part installed on the vehicle. Matching OEM/P/N 03.7718-5028.1 is the primary fitment check.
FAQ
How do I confirm fitment for this Vacuum Brake Booster Oil Seal?
Compare the exact OEM/P/N and physical design with the installed part. The primary reference is 03.7718-5028.1. Do not select the part by vehicle model alone.
When should this Vacuum Brake Booster Oil Seal be replaced?
Replace it when inspection confirms wear, damage, loss, or incorrect fit. Compare the original part and mounting dimensions before ordering.
What is included with this Vacuum Brake Booster Oil Seal?
The confirmed kit contents are: 1 × Vacuum Brake Booster Oil Seal.
Does this listing include the complete surrounding assembly?
No. It includes only the item or repair components identified for this SKU. Inspect related parts separately and replace them only when diagnosis confirms a fault.
What should be checked before installation?
Check the OEM/P/N, dimensions, connectors, orientation, and condition of the mating components. Installation should follow the correct service procedure for the specific vehicle and assembly.
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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