GKN Loebro 306053 CV Joint Boot Kit - Front Left Outer or Front Right Outer

OE-Style CV Boot for BMW xDrive Front Axles

GKN Loebro 306053 is an OE-quality TPE CV joint boot kit built for front outer axle service on select BMW xDrive models. It is designed around exact joint fitment, which is critical when replacing a torn, slipped, or porous boot before grease loss and contamination damage the CV joint.

• OE-quality thermoplastic elastomer (TPE) boot construction
• Black solid boot design with one rib
• Joint end inside diameter: 3.267 in.
• Shaft end inside diameter: 0.964 in.
• Vented boot: No
• Built for high-heat driveline environments; TPE is used on many factory applications

Fitment and Application Details

This GKN Loebro CV joint boot kit is engineered for BMW front outer CV joint service on xDrive drivetrains. Fits 2014-2019 BMW 640i xDrive Gran Coupe, front right outer; 2014-2019 BMW 640i xDrive Gran Coupe, front left outer; 2013-2019 BMW 650i xDrive Gran Coupe, front right outer; 2013-2019 BMW 650i xDrive Gran Coupe, front left outer; 2014-2018 BMW 640i xDrive, front right outer; 2014-2018 BMW 640i xDrive, front left outer; 2012-2018 BMW 650i xDrive, front right outer; 2012-2018 BMW 650i xDrive, front left outer; 2011-2017 BMW 535i GT xDrive, front right outer; 2011-2017 BMW 535i GT xDrive, front left outer; 2010-2017 BMW 550i GT xDrive, front right outer; 2010-2017 BMW 550i GT xDrive, front left outer; 2012-2016 BMW 528i xDrive, front right outer; 2012-2016 BMW 528i xDrive, front left outer; 2014-2016 BMW 535d xDrive, front right outer; 2014-2016 BMW 535d xDrive, front left outer; 2011-2016 BMW 535i xDrive, front right outer; 2011-2016 BMW 535i xDrive, front left outer; 2011-2016 BMW 550i xDrive, front right outer; 2011-2016 BMW 550i xDrive, front left outer; 2015 BMW 740Ld xDrive, front right outer; 2015 BMW 740Ld xDrive, front left outer; 2013-2015 BMW 740Li xDrive, front right outer; 2013-2015 BMW 740Li xDrive, front left outer; 2010-2015 BMW 750i xDrive, front right outer; 2010-2015 BMW 750i xDrive, front left outer; 2010-2015 BMW 750Li xDrive, front right outer; 2010-2015 BMW 750Li xDrive, front left outer.

This part cross-references Genuine 31607606091 for the same application.

What This Boot Helps Address

• Split or torn CV boot material
• Grease leakage at the outer CV joint
• Road grit and moisture entering the joint
• Boot fitment issues from using the wrong replacement profile
• Heat-related boot deterioration on high-torque BMW xDrive drivetrains

Installation Notes and Tips

Match the replacement boot to the original joint design before installation. GKN notes that exact fit and correct material selection are important, especially when the factory axle uses a TPE boot. Inspect the CV joint for contamination or wear before installing the new boot, and verify the joint end and shaft end diameters against the original part.

Quality Assurance

GKN Automotive supplies OE-quality driveline components and designs these boot kits for professional repair work. The TPE material is selected for driveline heat resistance and is used on many factory applications where elevated operating temperatures are present. Part number 306053 is built to OE-style standards for BMW front outer CV boot replacement.