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CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap
CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap

CTS Turbo Audi B9/4M Billet Coolant Reservoir Cap

CTS TURBO
Availability:
5+ in stock, ready to be shipped

Ships in 3–5 business days

SKU CTS-ACC-003
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
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CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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CTS Turbo is proud to announce our newΒ  Audi B9/4M Coolant Tank Lid. Our cap is made from 6061-T6 Billet aluminum and black anodized for a sleek appearance and corrosion resistance. This is a direct replacement coolant cap. **To install you will need to transfer the valve from the OEM cap

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 12 applications
Q7
Make Model Engine Years
AUDI Q7 2016–2017
AUDI Q7 (4M) 2016–2017
A5
Make Model Engine Years
AUDI A5 2017–2021
AUDI A5 (B9) 2017–2021
A4
Make Model Engine Years
AUDI A4 2017–2021
AUDI A4 (B9) 2017–2021
S5
Make Model Engine Years
AUDI S5 2018–2021
AUDI S5 (B9) 2018–2021
S4
Make Model Engine Years
AUDI S4 2018–2021
AUDI S4 (B9) 2018–2021
SQ5
Make Model Engine Years
AUDI SQ5 2018–2021
AUDI SQ5 (B9) 2018–2021

Fitment data last updated: 2026-11-10

Fits 12 vehicle applications Check vehicle fitment before ordering View fitment

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