Compatible KYOSHO MINI-Z MR-04 Front Knuckle Arm Pair 4140 Steel & 7075 Alloy MR04021 by GPM  [MR04021]

Service front knuckle arm for MINI-Z MR-04

This service front knuckle arm is intended for use on KYOSHO MINI-Z MR-04 cars and carries the part code MR04021. The assembly uses 4140 carbon steel together with 7075 alloy to provide reliable performance in the front knuckle area of compatible MR-04 Mini-Z models.

The box includes two knuckle arms so both sides of the front suspension can be renewed. Fit these during routine servicing or when replacing factory parts after impacts. The materials chosen help preserve dimensional accuracy and resist everyday wear during small-scale driving.

Use the supplied pair to replace damaged or worn front knuckle arms and verify steering travel and mounting clearance before finishing reassembly.