Jeep 4.0 Water Pump Block Off

Jeep 4.0 Water Pump Block Off

I came up with this water pump block off as a neat way to run an electric water pump for a high RPM 4.0 based engine we have in the works. An electric pump will give you better control of the cooling system, alleviating issues of insufficient flow at idle, and cavitation in high RPM engines. The block off plate features a -20AN (1.25") port for the pump feed line and a -10AN line for the heater core feed line. If you are interested, feel free to contact us.


Back to blog


Im interested in purchasing this plate

Greg Wilson

i have a question about ax15 transmission,
do you have any idea where i can upgrade my manual 5 speed transmission to handle extreme power?

khalifa alali

Leave a comment