Rear Damper Body YS-4L-8 by Yokomo for Off-Road R/C  [YS-4L-8]

Rear damper component overview and precautions

The Yokomo YS-4L-8 R. Shock Body is intended as a replacement housing for rear damper units on off-road R/C vehicles. It locates internal components and helps keep piston travel and seal placement consistent during servicing.

Install this part when the original body shows signs of wear or when swapping parts during suspension setup. Follow standard damper servicing steps: drain the oil, remove the cap and shaft, transfer internal parts carefully, then check seal seating before refilling. This component is made for R/C model use only and should not be applied to real vehicles.

For compatibility checks, compare the YS-4L-8 form factor to your existing shock to ensure correct fit. The shock body improves the ease of inspection and repeatability in tuning but does not change piston dimensions or valve characteristics alone. On reassembly, confirm there are no burrs, that O-rings are correctly positioned, and that shaft clearance is appropriate to maintain consistent damping.