Vaico V20-4129 Suspension Multi Purpose Bump Stop - Front

Front Suspension Bump Stop for Mini and BMW

Vaico V20-4129 is a front suspension bump stop for vehicles with active suspension and sport-oriented chassis tuning. It is built to match the OE reference 31336778545 and supports controlled suspension travel on select Mini Cooper Countryman, Mini Cooper Paceman, and BMW Z4 applications.

Key Features

• Front suspension bump stop for OE-style replacement service
• Fits vehicles with active suspension
• Application-specific for sport suspension settings and M Sport suspension where listed
• Dimensions: 65 mm height, 93 mm length, 63 mm width
• Made to match OE reference 31336778545
• Brand line: VAICO suspension components are cataloged for direct-fit repair applications

Detailed Product Information

Vaico V20-4129 is a suspension bump stop used at the front axle to limit excessive suspension compression and help maintain proper bump travel control. This part is listed for 2011-2016 Mini Cooper Countryman, front; 2013-2016 Mini Cooper Paceman, front; and 2003-2008 BMW Z4, front, including configurations with sports suspension settings or M Sport suspension as noted in the fitment data. The part number V20-4129 and OE reference 31336778545 make it easier to verify the correct replacement for the specific chassis and suspension package.

This part cross-references OE number 31336778545 for the same application.

Common Repair Symptoms

• Suspension bottoming out over bumps or dips
• Harsh impact noise from the front suspension
• Reduced bump travel control on worn suspension components
• Damage to nearby suspension parts from over-compression
• Loss of proper ride control on active suspension systems

Installation Notes and Tips

Verify the OE number, suspension package, and front-axle application before ordering. This part is listed for vehicles with active suspension and specific sport or M Sport suspension settings on certain models. Inspect the surrounding suspension components during service, and confirm the mounting area is clean and free of damage before installation.

Quality Assurance

VAICO cataloged this part for OE-referenced suspension repair applications. Confirm fitment by matching the vehicle year, model, suspension configuration, and OE number 31336778545 before installation.