Vaico V20-1186 CV Joint Boot Kit - Rear Left Inner or Rear Right Inner

Vaico CV Joint Boot Kit for BMW Rear Inner Axles

The Vaico V20-1186 CV Joint Boot Kit is an aftermarket elastomer replacement for the rear inner, gear box side CV joint on select BMW applications. Built for BMW M3, Z4, X5, 540i, 740i, 740iL, 750iL, Z3, 840Ci, 850Ci, and 850i models, it provides a direct-fit service part for maintaining CV joint protection and driveline integrity.

Key Features

• Part number: V20-1186
• Brand: Vaico / VAICO
• Category: CV Joint Boot Kit for driveline and axle service
• Material: Elastomer for flexible sealing performance
• Dimensions: 80 mm height, 95 mm length, 25 mm width
• Designed for rear right inner and rear left inner positions on the gear box side
• Cross-reference: Four Seasons 33580

Product Details

VAICO V20-1186 is a CV joint boot kit made from elastomer, a material commonly used for driveline sealing because it can flex with suspension and axle movement while helping retain grease around the CV joint. The listed dimensions and fitment data support BMW rear inner applications where the boot must seal the joint at the gearbox side. This part number, V20-1186, is listed for multiple BMW platforms including BMW M3 and BMW Z4 rear inner positions, along with BMW X5, 540i, 740i, 740iL, 750iL, Z3, 840Ci, 850Ci, and 850i coverage.

For buyers searching for a BMW rear inner CV boot kit, BMW M3 rear right inner CV joint boot, or BMW Z4 rear left inner gear box side boot, this part provides a fitment-specific replacement option. The VAICO product line is used for OE-style service parts across driveline and axle categories, with this boot kit focused on restoring the protective seal around the CV joint.

What It Helps Address

• Cracked or split CV boot material
• Grease leakage around the inner CV joint
• Contamination from road debris and moisture
• Noise or vibration caused by a worn boot that has allowed joint wear
• Service replacement for rear inner BMW driveline maintenance

Installation Notes and Tips

Confirm the vehicle’s rear inner position before ordering, since this part is listed for both rear right inner and rear left inner applications. Match the BMW model, year, and notes carefully, especially where fitment includes gearbox-side or final-drive-ratio exceptions. Inspect the CV joint for wear before installation; a damaged joint may require additional service beyond the boot itself. Use the vehicle’s service information for proper cleaning, grease handling, and clamp installation procedures.

Quality Assurance

VAICO supplies aftermarket replacement parts for driveline service, and this boot kit is cataloged with direct interchange references for application matching. Part number V20-1186 is cross-referenced to Four Seasons 33580 for the same application.