This engine mount is supplied as part KV-002 and designed to fit Kyosho FW05-R and V One series touring car chassis. The 3mm screw hole pattern in the product title denotes the fastener interface used to secure the assembly to the chassis.
Functionally the mount locates the engine while allowing small positional adjustments required for correct clutchbell and pinion mesh. It is intended as a direct-fit replacement for the models listed and for hobby use on model cars only.
Workshop guidance: retain compatible original hardware where possible, confirm alignment with a dry-fit before final torquing, and use controlled torque values to protect the 3mm fastener threads. No supplemental hardware is included unless explicitly listed by the vendor.