2017-2026 Audi / Porsche Coolant Pipe / Tube / Line Set Rear 4M0121085R
OEM Part #: 4M0-121-085-R (4M0121085R)
Actual photo
The exact part you’ll receive — not a stock photo.
$99.99
Side: Rear
Used
Donor2021 Audi SQ8 · 4.0L · 47k miles
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Only 1 in stock — no guaranteed restock
Genuine OEM Used
SKU: 701478
Donor Vehicle: 2021 Audi SQ8 · 4.0L · 47k miles
2 photos
$99.99
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Audi genuine OEM coolant pipe / tube / line set, part number 4M0121085R (also supersedes 4M0121085Q), removed from a donor vehicle. This rear-mounted coolant pipe set routes engine coolant to and from the rear of the vehicle across Audi Q7, Q8, RS Q8, SQ8, and Porsche Cayenne applications. When this pipe cracks or leaks, coolant loss can lead to overheating or low-coolant warnings. It fits various 2.0L turbocharged, 2.9L, 3.0L gasoline, diesel, and hybrid powertrains.
Specifications
| Fits Vehicle Model | Cayenne, Q7, Q8, RS Q8, SQ8 |
| Fits Vehicle Make | Audi, Porsche |
| OEM Part No | 4M0-121-085-R (4M0121085R) |
| Compatible OEM Part No | 4M0-121-085-Q |
| Side | Rear |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 100 vehicle configurations across 2 makes, 2017-2026.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 100 vehicle configurations — 20 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2026 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2025 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2026 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2026 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2024 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2020 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2025 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2021 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2023 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2025 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2025 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2025 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2026 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2026 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2023 | Porsche | Cayenne | S Coupe SUV | 2.9L V6 Turbo | |
| 2022 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2024 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2024 | Porsche | Cayenne | Coupe SUV | 3.0L V6 Turbo | |
| 2024 | Porsche | Cayenne | S Coupe SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | S Coupe SUV | 3.0L V6 Turbo | |
| 2021 | Porsche | Cayenne | GTS Coupe SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | S SUV | 2.9L V6 Turbo | |
| 2020 | Porsche | Cayenne | S SUV | 2.9L V6 Turbo | |
| 2021 | Porsche | Cayenne | Turbo S SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | Turbo Coupe SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | Turbo GT Coupe SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | GTS SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | Turbo S SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | Coupe SUV | 3.0L V6 Turbo | |
| 2023 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2023 | Porsche | Cayenne | Turbo GT Coupe SUV | 4.0L V8 Turbo | |
| 2020 | Porsche | Cayenne | Turbo S Coupe SUV | 4.0L V8 Turbo | |
| 2020 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2022 | Porsche | Cayenne | S SUV | 2.9L V6 Turbo | |
| 2019 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2018 | Porsche | Cayenne | SUV | 3.6L V6 | |
| 2018 | Porsche | Cayenne | S SUV | 3.6L V6 Turbo | |
| 2018 | Porsche | Cayenne | Turbo SUV | 4.8L V8 Turbo | |
| 2018 | Porsche | Cayenne | GTS SUV | 3.6L V6 Turbo | |
| 2018 | Porsche | Cayenne | S SUV | 3.0L V6 Supercharged | |
| 2018 | Porsche | Cayenne | Turbo S SUV | 4.8L V8 Turbo | |
| 2019 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2019 | Porsche | Cayenne | S SUV | 2.9L V6 Turbo | |
| 2020 | Porsche | Cayenne | Coupe SUV | 3.0L V6 Turbo | |
| 2020 | Porsche | Cayenne | S Coupe SUV | 2.9L V6 Turbo | |
| 2020 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2020 | Porsche | Cayenne | Turbo Coupe SUV | 4.0L V8 Turbo | |
| 2020 | Porsche | Cayenne | Turbo S SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | Turbo Coupe SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | S Coupe SUV | 2.9L V6 Turbo | |
| 2023 | Porsche | Cayenne | S SUV | 2.9L V6 Turbo | |
| 2021 | Porsche | Cayenne | SUV | 3.0L V6 Turbo | |
| 2022 | Porsche | Cayenne | Coupe SUV | 3.0L V6 Turbo | |
| 2021 | Porsche | Cayenne | Turbo S Coupe SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | GTS SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | Turbo GT Coupe SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | Turbo S Coupe SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | GTS Coupe SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | S Coupe SUV | 2.9L V6 Turbo | |
| 2023 | Porsche | Cayenne | Turbo S Coupe SUV | 4.0L V8 Turbo | |
| 2021 | Porsche | Cayenne | Coupe SUV | 3.0L V6 Turbo | |
| 2022 | Porsche | Cayenne | Turbo Coupe SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | Turbo S SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | S SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | S SUV | 3.0L V6 Turbo | |
| 2022 | Porsche | Cayenne | GTS SUV | 4.0L V8 Turbo | |
| 2022 | Porsche | Cayenne | GTS Coupe SUV | 4.0L V8 Turbo | |
| 2023 | Porsche | Cayenne | Turbo SUV | 4.0L V8 Turbo | |
| 2024 | Porsche | Cayenne | Turbo Coupe SUV | 4.0L V8 Turbo | |
| 2022 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2024 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2021 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2024 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2023 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2022 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2023 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2021 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2022 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2024 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2024 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2021 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2021 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2020 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2019 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2020 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2018 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 05/29/17 |
| 2020 | Audi | Q7 | SUV | 3.0L V6 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2017 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2018 | Audi | Q7 | SUV | 2.0L l4 Turbo | For Vehicles with Production Date After 05/29/17 |
| 2017 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 05/29/17 |
| 2019 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 05/29/17 |
| 2020 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2019 | Audi | Q8 | SUV | 3.0L V6 Turbo |