Enter your registration to find parts

Front Ball Joint AMCP-3978-AU005 OE Ref 8K0407689E

Key Specification:
  • Diameter [mm]: 21
  • Fabrication Number: AMCP-3978-AU005
  • Fitting Position: Front Axle
  • OEM Reference number: 8K0407689D
  • PURPOSE GROUP: Ball Joint
Sale
£ 43
£ 35.83 excl. VAT
In Stock
SKU:AMCP-3978-AU005
BrandAftermarket
  • Free Shipping
    For orders over £75
  • Top-Notch Support
    Monday To Friday
  • 100% Safety
    Only secure payments
  • Hot Offers
    Discounts up to 70%
Diameter [mm]
21
Fabrication Number
AMCP-3978-AU005
Fitting Position
Front Axle
OEM Reference number
8K0407689D
PURPOSE GROUP
Ball Joint
RODS AND PINS
6
Supplementary Info
TRACK ENDS
Supplementary Info
ARM BALL JOINT
Supplementary Info
AUDI A4 07- - A5 07- - A6 10- - A7 10- - Q5 08- /FRONT - LOWER 21
Supplementary Info
MM/

Front Ball Joint AMCP-3978-AU005 OE Ref 8K0407689E

Front Ball Joint OE Ref 8K0407689E – Aftermarket – OEM 8K0407689D

This Front Ball Joint OE Ref 8K0407689E is supplied by Aftermarket as a replacement for OEM reference 8K0407689D. It is intended for use in selected AUDI vehicles and designed to meet original equipment fit and function requirements.

The part is identified by manufacturer reference AMCP-3978-AU005 and EAN not specified, allowing accurate identification and compatibility verification before installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.

Correct part selection is essential to ensure proper fitment. Please verify compatibility using the OEM reference number or the vehicle registration lookup tool before ordering.

Vehicle Compatibility

Compatible with selected AUDI models. Detailed compatibility information is available in the Compatibility section of this page.

If this part is not suitable for your vehicle, browse alternative options in our Suspension category.

Reference number(s) comparable with the original spare part number
VAG 8K0407689D VAG 8K0407689E VAG 8K0407689F VAG 8K0407689G
OE reference number(s) comparable with the original spare part number
  1. Berry
    12 Nov, 2025
    elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
  2. Edward & Susan
    20 OCT, 2025
    These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
  3. Charlie
    27 AUG, 2025
    eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
  4. Adam Taylor
    12 May, 2025
    Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
  5. Helena Garcia
    2 January, 2025
    The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.