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4M0 407 689 B Front Lower Ball Joint for Audi Q7 Q8 A8 Porsche Cayenne
| MOQ: | 2 |
| Price: | $6.60-8.80 |
4M0 407 689B
,Volkswagen Touareg Ball Joint
,Lower Ball Joint
Product Emphasis: OEM-quality front lower ball joint engineered to connect the front lower control arm to the steering knuckle, allowing smooth wheel movement and precise steering control. This critical suspension component supports the vehicle's heavy weight while permitting the up-and-down and rotational movement required for steering and suspension travel. Designed as a direct replacement for the original ball joint, which commonly develops play or boot damage over time, causing steering looseness and clunking noises.
Original Part Number: 4M0 407 689 B
Supersession(s): 4M0407689C, 958 407 689 C
Dimensions: Housing press fit diameter 49 mm; stud thread M14 x 1.5; cone size 20 mm; length approximately 93.33 mm
OEM Standard Size: Yes — manufactured to original equipment specifications
Vehicle Compatibility: Audi Q7, Q8, A8, e-tron; Porsche Cayenne; Bentley Bentayga; Lamborghini Urus; VW Touareg
Brand: OEM Quality (Lemförder 43077 01, TRW JBJ1253, Meyle, FAG 825 0443 10, SKF VKDS 311054, Febi Bilstein, Vaico)
Years: 2015–2026
Models: Audi Q7 (4M), Q8, A8 (4N), e-tron; Porsche Cayenne (9YA/9YB); Bentley Bentayga; Lamborghini Urus; VW Touareg (CR)
Product Name: Ball Joint / Front Lower Ball Joint / Suspension Ball Joint
Quality: OEM-quality replacement from Lemförder, TRW, Meyle, FAG, SKF, Febi Bilstein, and Vaico. Manufactured with durable aluminum housing and polymer bearing. Includes nut. 12-month warranty.
Brand: OEM Quality (Lemförder, TRW, Meyle, FAG, SKF)
Manufacturer Part Number: 4M0 407 689 B
Superseded Part Number: 4M0407689C
Part Description: Ball Joint (Front Lower)
Condition: New
Fitment Type: Direct Replacement
Position: Front Axle, Lower, Left/Right (Symmetric)
Material: Aluminum Housing with Polymer Bearing
Housing Press Fit Diameter: 49 mm
Stud Thread: M14 x 1.5
Cone Size: 20 mm
Attachment Type: Press-In
Quantity Required: 2 (one per side)
OEM-quality replacement ensuring perfect vehicle fitment
Aluminum housing with polymer bearing for durability
Press-in attachment type with tapered stud
Replaces worn original ball joint to restore proper suspension and steering performance
Eliminates steering looseness, clunking noises, and uneven tire wear
Direct press-fit installation using factory control arm bore
Recommended to replace in pairs
No modifications required for installation
Audi Q7 (4M): 2017–2024
Audi Q8: 2019–2026
Audi A8 (4N): 2019–2026
Audi e-tron: 2019–2023
Porsche Cayenne (9YA/9YB): 2017–2024
Bentley Bentayga: 2016–2024
Lamborghini Urus: 2018–2024
VW Touareg (CR): 2018–2024
Note: This ball joint is symmetric and fits both left and right sides. Verify fitment by VIN before purchase.
Q1: What does this front lower ball joint do?
A: It connects the front lower control arm to the steering knuckle, serving as a pivot point that allows the wheel to move up and down while maintaining steering control. A worn ball joint can cause steering looseness, clunking noises over bumps, uneven front tire wear, and reduced braking stability.
Q2: Is this a genuine OEM part?
A: 4M0 407 689 B is the OEM part number, which has been superseded by 4M0407689C. It is available as an OEM-quality replacement from Lemförder (43077 01), TRW (JBJ1253), Meyle, FAG (825 0443 10), SKF (VKDS 311054), and Febi Bilstein.
Q3: What are the symptoms of a failed ball joint?
A: A worn ball joint typically causes clunking or knocking noises from the front suspension, especially over bumps. You may also notice vague or wandering steering, uneven front tire wear, and excessive play in the front wheel.
