SKU: RCD-300209-05
300209-05 RCD Adapter -5/8" to 3/8" RCD Hex Adapter Gear Drives .625" tall

300209-05  RCD  adapter  5/8  to 3/8     and .5"  tall    can use  300209-03  also   1/2 " long instead of 5/8"  long 

RCD Cam Gears are 5/8” HEX  - So you need this to adapt to a 3/8”  for driving fuel pumps 

 For putting fuel pumps on  RCD ,Gear drives*

        They should press in but if it does not than we suggest the customer weld a dot in front of the adapter on the shaft to prevent this adapter from ever moving  *  or PEEN it with a punch 

300209-05    300209-03