/live/media/GK/GK_306991_Dia.jpg)
GKN Loebro 306991 CV Joint Boot Kit - Front Inner, Front Left or Front Right Inner
| Brand | GKN Loebro 306991 |
|---|---|
| Position | Front Right Inner, Front Inner, and Front Left |
| Joint End Inside Diameter | 3.346 |
| Shaft End Inside Diameter | 1.003 |
| Rib Quantity | 1 |
| Vented Boot | No |
| Boot Color | Black |
| Split Or Solid Type | Solid |
| Thermo | Tpe |
| Fits | Mercedes-Benz · 7 vehicles |
OE quality TPE boot kit. Built for exact-fit replacement and reliable joint protection.
Thermoplastic elastomer construction. Handles heat from modern driveline torque up to 240°F.
Solid boot design. Helps keep contaminants out and protect the joint.
Cross-references 0003572000 and A0003572000 for the same application. See all 2.
OE-Quality CV Boot Kit for Mercedes-Benz
GKN Loebro 306991 is an OE-quality TPE CV joint boot kit built for driveline repairs where the original boot has torn, slipped, or become porous. It is designed for exact joint fit and the heat resistance needed in modern high-torque drivetrains, including Mercedes-Benz C300 and C43 AMG front axle applications.
- Thermo plastic elastomer (TPE) boot for OE-style driveline protection
- Solid boot design with black finish
- Joint end inside diameter: 3.346 in.
- Shaft end inside diameter: 1.003 in.
- Rib quantity: 1
- Vented boot: No
- Designed for front axle CV joint service on select Mercedes-Benz models
Why This Boot Matters
The CV boot seals grease in the joint and keeps dirt, water, and road debris out. When the boot fails, the joint can lose lubrication and wear quickly. GKN Loebro 306991 uses TPE material, the same boot type commonly used on original driveline assemblies, to handle elevated operating temperatures and maintain a precise fit on the joint.
This part cross-references OE numbers 0003572000 and A0003572000 for the same application. Search terms such as Mercedes-Benz C300 front right inner CV boot kit, Mercedes-Benz C43 AMG front inner boot replacement, and Mercedes-Benz front left CV joint boot repair all point to this type of exact-fit service part.
Common Problems This Part Helps Address
- Torn CV boot causing grease leakage
- Slipped boot that no longer seals the joint
- Porous boot material that allows contamination
- Noise or vibration from a joint running low on grease
- Premature CV joint wear after boot damage
Installation Notes and Fitment
Compatible with 2017-2019 Mercedes-Benz C300, front right inner. Compatible with 2019 Mercedes-Benz C43 AMG, front right inner. Compatible with 2017-2018 Mercedes-Benz C43 AMG, front inner. Compatible with 2017 Mercedes-Benz C43 AMG, front left.
Before installation, confirm the original driveshaft uses a TPE boot and match the boot to the joint exactly. Clean the joint thoroughly, inspect for wear or contamination, and replace damaged clamps or retaining components as required by the repair procedure. Proper seating and clamp tension are critical to keeping the boot sealed.
Quality Assurance
GKN Automotive supplies OE-quality driveline components and designs this boot kit to meet the fit and material requirements of the original application. Part number 306991 is engineered for the specified Mercedes-Benz fitments and the thermal demands of modern CV joints.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Mercedes-Benz | C300 | AWD | 2.0L | L4 | Front Right Inner | — |
| 2019 | Mercedes-Benz | C43 AMG | AWD | 3.0L | V6 | Front Right Inner | — |
| 2018 | Mercedes-Benz | C300 | AWD | 2.0L | L4 | Front Right Inner | — |
| 2018 | Mercedes-Benz | C43 AMG | AWD | 3.0L | V6 | Front Inner | — |
| 2017 | Mercedes-Benz | C300 | AWD | 2.0L | L4 | Front Right Inner | — |
| 2017 | Mercedes-Benz | C43 AMG | AWD | 3.0L | V6 | Front Inner | — |
| 2017 | Mercedes-Benz | C43 AMG | AWD | 3.0L | V6 | Front Left | — |
| No rows match your filter. | |||||||