Originally Posted by HDDP
Steve, the OEM pump is the Johnson CMP7-1 and was licensed / sold to MB for use in this and some other SC applications... Here are the specs... Compare them... The differences are inlet / outlet sizes, CFM and voltage...
According to everything I have read the OEM pump is a Bosch unit not a Johnson marine pump. Also the OEM pump is the same one used in the Ford Lightning.