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Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)
Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)

Audi A8 6.3L W12 Starter Motor – Bosch SR0789N (07L911021)

BOSCH
Availability:
Out of stock
SKU SR0789N
Sold out
$295.95 - $295.95
$295.95
$295.95 - $295.95
$295.95
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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This Bosch SR0789N starter motor (OEM 07L911021) is specifically designed for the 6.3L W12 engine in the Audi A8. It provides the high cranking torque needed to spin the large twelve-cylinder engine reliably. A direct replacement for the original, it eliminates slow cranking and no-start conditions.

Key Features & Benefits

  • W12-Specific Torque: Tuned to deliver the extra power required for high-displacement W12 engines.
  • OE-Quality Build: Bosch constructs this starter with premium components for durability and long service life.
  • Vibration-Resistant Design: Durable construction withstands the unique vibrations of a W12 engine.
  • Plug-and-Play Fit: Exact replacement for the factory starter; no wiring or bracket changes needed.
  • Industry-Leading Testing: Each starter is tested for output, noise, and reliability.

Vehicle Fitment

Make Model Years Engine
Audi A8 Quattro 2014–2016 6.3W12

Technical Specifications

Part Brand Bosch
Bosch Part Number SR0789N
OEM Part Number 07L911021
Voltage 12V
Engine Fitment 6.3L W12
Type Starter Motor

Installation Notes

Direct bolt-on replacement for the A8 W12; professional installation recommended due to engine complexity.

About Bosch

Bosch is a global leader in automotive electronics and supplies OE starters to many high-performance engines, including the Audi W12.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
Audi A8 (D4)
Make Model Engine Years
Audi A8 Quattro 6.3W12 2014–2016
Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Starter

The BOSCH SR0789N starter turns the engine over when you start the car. It draws a large current from the battery, and as its motor and solenoid wear it can become slow, noisy or fail to engage.

Frequently asked questions

What are the signs of a failing starter?

A click but no crank, slow or labored cranking, a grinding or whirring noise when starting, or starting that works only intermittently.

Could it be the battery instead?

Yes, a weak battery or corroded cables cause very similar symptoms. Test the battery and check the cable connections and ground before replacing the starter.

Does my car need a start-stop starter?

Cars with automatic start-stop use starters built for many more start cycles. Choose the starter listed for your exact car, especially if it has start-stop.

Can I replace a starter myself?

It depends on the car; some starters are easy to reach and others sit under the intake manifold. Always disconnect the battery first, since the starter cable is live even with the ignition off.

How do I make sure this starter fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.