The Dynomite Diesel Fuel Pin gives your 89-93 3.9L Cummins 4BT 15-30 more horsepower.  The Power Pin fits all 3.9L 4BT Cummins engines with the mechanical VE rotary injection pump. Installation time is approximately 15 minutes and can be done with simple hand tools.

Click here for installation instructions.

PLEASE MAKE SURE YOUR CUMMINS 4BT HAS A ROTARY JECTION PUMP BEFORE PURCHASE. Will not work in non-Bosch pumps.