Backplate Cover Plate O-Ring by HPI Racing
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
This product was added to our catalog on July 19, 2012.This is a replacement HPI Backplate Cover Plate O-Ring, and is intended for use with the HPI Nitro Star 21BB, S-25 and F3.5, F4.1 and F4.6 series engines. This o-ring is only used with these engines when equipped with a pull start.