YZ-4 Front Upper & Rear Lower Mount Set Resin - Z4-300 Yokomo  [Z4-300]

Front upper and rear lower mount details

This set contains resin front upper arm mounts and rear lower suspension mounts engineered to replace the original components on the YZ-4 4WD buggy platform. Intended for RC repair and setup use, they act as service spares when adjusting suspension geometry.

Use notes:

• Material: resin, appropriate for standard repairs and light tuning where original plastic parts are replaced.
• Purpose: secures arm pivot points and suspension mount locations, affecting roll center and ride characteristics under different setups.
• Fitment: intended for the YZ-4 family with the B-YZ4 chassis cited; always test-fit to confirm alignment with your existing assemblies.

Installation guidance: these mounts replace the factory front upper and rear lower mounting points and typically reuse the stock hardware and hinge pins. Check all fasteners and bearings for wear and ensure pivot joints have no excess play prior to finishing the installation.

Compatibility: Compatible with YZ-4, supported chassis B-YZ4 as referenced.