GKN Loebro 304957 CV Joint Boot Kit - Front Left Outer or Front Right Outer

OE-Style CV Boot Kit for Audi Driveline Repair

GKN Loebro 304957 is an OE-quality TPE CV joint boot kit for front outer axle service. It is built for exact-fit replacement on Audi A4 Quattro, A5 Quattro, and Q5 applications where the original boot has torn, slipped, or become porous.

For Audi A4 Quattro, Audi A5 Quattro, and Audi Q5 driveline repairs, this boot kit matches the joint-specific fit needed to protect the CV joint from contamination and heat-related wear.

• OE-quality replacement boot kit from GKN Loebro
• TPE thermoplastic elastomer construction for high-heat driveline environments
• Solid boot design with black finish
• Joint end inside diameter: 3.464 in.
• Shaft end inside diameter: 0.984 in.
• Single-rib design
• Vented boot: No
• Cross-reference part numbers: 8D0407285, 8K0498203B

Detailed Product Overview

Part number 304957 is engineered for vehicles originally equipped with a TPE boot, where material match and exact fit are critical to CV joint protection. GKN Automotive notes that modern drivetrains generate significant torque and heat, so the replacement boot must match the original joint design to help maintain sealing and durability. This boot kit is intended for front right outer and front left outer positions on 2005-2012 Audi A4 Quattro, 2008-2011 Audi A5 Quattro, and 2011-2012 Audi Q5.

Use GKN Loebro 304957 when servicing an Audi CV axle boot that has failed from age, road debris, or grease loss. The part number 304957 is a direct-fit style solution for the listed Audi applications.

Common Repair Reasons

• Torn CV boot causing grease leakage
• Slipped boot that no longer seals the joint
• Porous boot material allowing contamination
• Visible cracking from heat and age
• CV joint noise after boot failure and grease loss

Installation Notes

Confirm the original driveshaft uses a TPE boot before ordering. Measure the joint end and shaft end diameters and verify the boot profile matches the axle design before installation. Clean the CV joint thoroughly during service and inspect for wear before fitting the replacement boot. This kit is for front outer positions only on the listed Audi applications.

Quality Assurance

GKN Automotive supplies OE-quality driveline components and designs these boot kits to match the original joint application. The TPE material is selected for the heat and torque demands found in modern driveline systems.