This is an optional Kyosho Aluminum Gear Differential Case Cap. This part is compatible with the Ultima RB6, RT6 and SC6, as well as the standard Ultima SC and DB vehicles equipped with a gear differential. This machined aluminum cap provides an improved seal to reduce leaking/seeping and provides improved consistency compared to the standard plastic cap. Package includes cap and gasket.
This product was added to our catalog on May 7, 2015