Vaico V20-18004 Drive Shaft Coupler

Drive Shaft Coupler for BMW and Chevrolet

The Vaico V20-18004 drive shaft coupler is a disc joint designed for driveline service where precise torque transfer and vibration control matter. With a 78 mm bolt hole circle diameter, 38 mm inner diameter, and 110 mm outer diameter, it is built to match the dimensional requirements of select BMW and Chevrolet applications.

VAICO product line parts are developed for OE-style replacement needs, with this coupler manufactured in Germany and supplied without add-on material. The V20-18004 is a direct-fit driveline component for vehicles such as the BMW 325i, BMW Z3, and Chevrolet Corvette across the listed model years.

Key Features

• Drive shaft coupler with disc joint design
• Part number: V20-18004
• Bolt hole circle diameter: 78 mm
• Inner diameter: 38 mm
• Outer diameter: 110 mm
• Length: 110 mm
• Height: 32 mm
• Width: 110 mm
• Supplied without add-on material
• VAICO / Vaico branded driveline replacement part

Detailed Description

Built for driveline and axle service, the Vaico V20-18004 drive shaft coupler connects drivetrain components through a disc joint layout that supports controlled power transfer. Its 110 mm overall width and length, along with the 78 mm bolt circle and 38 mm inner diameter, make it important to verify against the original part before installation. This part number, V20-18004, is listed for a wide range of BMW and Chevrolet vehicles, including BMW 318i, 325Ci, 328i, Z3, Z4, and Chevrolet Corvette applications.

This part cross-references Four Seasons 36986 for the same application.

What It Helps Address

• Driveline vibration caused by a worn coupler
• Clunking or driveline lash during acceleration and deceleration
• Loss of smooth torque transfer through the drive shaft
• Noise from deteriorated disc-joint connection points
• Replacement needs for BMW and Chevrolet driveline service

Installation Notes and Tips

• Confirm bolt hole circle diameter, inner diameter, and overall dimensions before ordering.
• Inspect adjoining driveline components for wear before installing the new coupler.
• Use the vehicle’s original service specifications for torque and alignment.
• Verify fitment against the listed applications for BMW 325i, BMW Z3, and Chevrolet Corvette models.
• Because add-on material is not included, reuse or source any required related service items separately.

Quality Assurance

VAICO manufactures this driveline component in Germany for OE-style replacement use. The V20-18004 is specified with defined dimensional measurements and application coverage to support accurate parts matching for BMW and Chevrolet driveline service.