GKN Loebro 306843 CV Axle Assembly - Front Right

Mercedes-Benz Front Right CV Axle Assembly

The GKN Loebro 306843 is a front right CV axle assembly built with OE-focused driveline engineering for select Mercedes-Benz applications. It is specified for smooth torque transfer, precise joint articulation, and dependable operation in front-wheel-drive and all-wheel-drive layouts.

Compatible with 2012-2018 Mercedes-Benz CLS550, 2015-2016 Mercedes-Benz CLS400, 2014-2016 Mercedes-Benz E250, and 2015-2016 Mercedes-Benz E400 in the front right position.

Key Features

• Part number 306843 CV axle assembly from GKN Loebro
• Front right application for select Mercedes-Benz CLS and E-Class models
• Compressed length: 21.377
• Inboard spline quantity: 27
• Outboard spline quantity: 30
• Inboard joint type: Plunging Joint AAR
• Outboard joint type: Fix Ball Joint GKN SX
• Axle nut included with M16x1.5 thread size
• OE technology from a driveline supplier used by global vehicle manufacturers

Detailed Description

GKN Automotive develops axle assemblies and CV joint solutions for passenger vehicles, light trucks, sports cars, luxury cars, and 4x4 vehicles, with engineering tuned to the demands of each platform. The 306843 axle assembly reflects that OE-oriented approach, using a plunging inboard joint and fixed ball outboard joint to support controlled movement and consistent driveline engagement. For shoppers searching for a Mercedes-Benz CLS550 front right CV axle assembly or a Mercedes-Benz E400 front right axle shaft replacement, this part number provides a direct match to the listed applications.

This part cross-references Mercedes-Benz OE numbers 2123301100 and A2123301100 for the same application.

What This Part Helps Address

• Clicking or popping during turns from a worn outer CV joint
• Vibration under acceleration caused by axle wear or imbalance
• Grease leakage from a damaged CV boot or joint seal
• Clunking or looseness in the front driveline
• Loss of smooth power delivery to the front right wheel

Installation Notes and Tips

Verify the vehicle’s year, model, and front right position before installation. Confirm spline counts, compressed length, and axle nut thread size match the original axle shaft. Inspect related components such as wheel hub, seals, and mounting points for wear before installing the new assembly.

Quality Assurance

GKN Automotive supplies driveline solutions to a large share of global vehicle manufacturers and produces axle assemblies at high volume for OE-level applications. The 306843 is built to align with the fitment and dimensional requirements listed for Mercedes-Benz CLS550, CLS400, E250, and E400 front right service.