Description
The 13″ long motor bolt is the lower through-bolt for all Driven-style motor mount kits on the 600 micro sprint. It carries the load of the engine at the bottom mount, which means it sees every bit of chain load, every landing, and every bit of chassis flex the car generates.
This is a replacement-length bolt sized specifically for the Driven mount stack, so you are not shimming with washers or running a bolt that only threads three turns. Correct length means correct thread engagement, correct clamp load, and a mount that stays where you set it instead of slowly working loose over a race weekend.
We recommend inspecting motor mount hardware any time you pull the engine and replacing the lower bolt outright at the end of a season or after any hard hit. If you are assembling a fresh mount kit, order this alongside your motor plates and jack shaft so the whole stack goes together in one sitting.
