GKN Loebro 304489 CV Joint Boot Kit - Rear Left Inner or Rear Right Inner

Overview of GKN Loebro CV Joint Boot Kit 304489

The GKN Loebro CV Joint Boot Kit 304489 is designed to provide reliable protection for the constant velocity joints on select BMW models. Engineered with durable rubber material, this solid black boot ensures a secure fit and long-lasting performance for driveline components.

• Joint end inside diameter: 4.015 inches
• Shaft end inside diameter: 1.221 inches
• Single rib design for secure sealing
• Constructed from high-quality rubber material
• Solid type boot, not split
• Black color for standard OEM appearance
• Non-vented boot design

Detailed Product Description

This CV joint boot kit from GKN Loebro is specifically engineered to fit a range of BMW vehicles including the 128i, 135i, 325i, 325xi, 328i, 328i xDrive, 328xi, 330i, 330xi, 335i, 335i xDrive, 335xi, X1, and Z4 models. The boot features a solid construction made from durable rubber, designed to protect the CV joint from dirt, debris, and moisture. With a joint end inside diameter of 4.015 inches and a shaft end inside diameter of 1.221 inches, it ensures a precise fit that maintains the integrity of the driveline system. The single rib design helps maintain a tight seal, preventing grease leakage and extending the life of the CV joint.

Common Applications and Problem Solving

• Prevents CV joint contamination from road debris and moisture
• Stops grease leakage to maintain proper lubrication
• Replaces worn or cracked CV boots to avoid joint damage
• Helps reduce driveline noise caused by damaged boots
• Maintains driveline performance and vehicle safety

Installation Notes and Tips

When installing the GKN Loebro CV Joint Boot Kit 304489, ensure the CV joint and shaft are clean and free of old grease and debris. Use appropriate clamps to secure the boot firmly in place without over-tightening, which could damage the rubber. Verify the boot’s fit by checking the inside diameters match the joint and shaft ends precisely. This kit is designed as a solid boot, so it requires careful handling during installation to avoid tearing.

Quality Assurance and Warranty

GKN Loebro manufactures this CV joint boot kit to meet OEM specifications for fit and durability. The rubber material is selected for resistance to wear and environmental factors. While specific warranty details are not provided, GKN Loebro products typically adhere to industry standards for quality and reliability, ensuring consistent performance on BMW driveline systems.