Rotary Engine Rebuild Kit for 13b-MSP Renesis As any top tier rotary engine builder will be able to tell you, the quality of parts will have a direct relation to the reliability and durability of the engine. That being said, we are very proud to offer our rebuild kit for the 13B-MSP RENESIS... MSRP: $1,321.64 Was: Now: $1,022.80 Choose Options