Genuine Audi Tube Line 4N0317821B OEM - Audi (4N0-317-821-B)
2020-2021 Audi A8 Quattro - 4n0317821b
Genuine Audi Tube Line 4N0317821B OEM - Audi (4N0-317-821-B)
2020-2021 Audi A8 Quattro - 4n0317821b
- Audi
- 4N0-317-821-B
Details
- Brand:
- SKU:
4N0-317-821-B
- Positions: Front
- Other Names:
Line
- Description:
Genuine Audi OEM Tube is a precision-engineered return line designed for Audi vehicles equipped with the 3.0L plug-in hybrid drivetrain, serving as a critical front return tube within the transmission cooling and hybrid thermal management system. This genuine component ensures that transmission fluid flows back through the system at the correct pressure and volume, maintaining optimal operating temperatures for both the conventional drivetrain and the high-voltage hybrid components. A compromised or imprecise return line can lead to overheating, fluid leaks, and accelerated wear on expensive hybrid transmission components — risks that make choosing genuine OEM over aftermarket a straightforward decision. Aftermarket lines are frequently manufactured to looser tolerances and may use materials that degrade faster under the thermal cycling demands of a plug-in hybrid system, where temperature swings are more extreme than in conventional vehicles. The genuine Audi Tube 4N0317821B is built to factory specifications, guaranteeing a perfect fit and long-term reliability without the guesswork. Whether you're searching for an Audi OEM Tube, a transmission return line, or part number 4N0-317-821-B, this is the exact component your vehicle requires. Audi Henderson is an authorized Audi dealer, and every genuine OEM part purchase is backed by the manufacturer's warranty.
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov - MSRP: $116.67
- Discount: $40.37 (34.6% off)
- Sale Price: $76.30
- Audi
- 4N0-317-821-B
Details
- Brand:
- SKU:
4N0-317-821-B
- Positions: Front
- Other Names:
Line
- Description:
Genuine Audi OEM Tube is a precision-engineered return line designed for Audi vehicles equipped with the 3.0L plug-in hybrid drivetrain, serving as a critical front return tube within the transmission cooling and hybrid thermal management system. This genuine component ensures that transmission fluid flows back through the system at the correct pressure and volume, maintaining optimal operating temperatures for both the conventional drivetrain and the high-voltage hybrid components. A compromised or imprecise return line can lead to overheating, fluid leaks, and accelerated wear on expensive hybrid transmission components — risks that make choosing genuine OEM over aftermarket a straightforward decision. Aftermarket lines are frequently manufactured to looser tolerances and may use materials that degrade faster under the thermal cycling demands of a plug-in hybrid system, where temperature swings are more extreme than in conventional vehicles. The genuine Audi Tube 4N0317821B is built to factory specifications, guaranteeing a perfect fit and long-term reliability without the guesswork. Whether you're searching for an Audi OEM Tube, a transmission return line, or part number 4N0-317-821-B, this is the exact component your vehicle requires. Audi Henderson is an authorized Audi dealer, and every genuine OEM part purchase is backed by the manufacturer's warranty.
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Also Purchased
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
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AUDI HENDERSON
Welcome to Audi OEM Parts, your number one source for all things Audi. We're dedicated to providing you the very best parts and accessories, with an emphasis on OEM fitment.
You can order your Genuine Audi Tube Line 4N0317821B OEM (4n0317821b) right now and have it delivered to your home or work in just a matter of days. Guaranteed to fit your 2020-2021 Audi A8 Quattro vehicle and we also offer a VIN verification system at checkout.
If you would like to browse your vehicle's specific OEM parts catalog, you can do so by first selecting what model you drive.
| Audi Models |
Audi
AudiOEMParts.com is operated by Audi Henderson, an authorized Audi dealership and part of the Findlay Automotive Group in Henderson, NV. We stock genuine Audi OEM parts and accessories for every model — A3, A4, A5, A6, A7, A8, Q3, Q5, Q7, Q8, TT, R8, e-tron, and beyond.
Every part ships directly from factory inventory with full Audi manufacturer warranty. No aftermarket substitutes. No compatibility guessing. Exact fit, every time.
Order online and ship nationwide. Same parts Audi technicians use, at authorized dealer pricing, with the speed of online ordering. Questions? Call 888-448-6114 or email [email protected].