Jagg Manual Bypass Valves

Works with all Harley-Davidson models with front-mounted spin-on oil filters. Mounts between base plate and oil filter and avoids due to its offeset construction filter to sensor contact. A thermostat is incorporated.

This smooth streamline device will keep your Twin Cam running cooler even on your second stop and go ride around Lake Faak in the midday heat. The Jims R & D department has come up with a fan system, that has been adapted from NASCAR race car brake coolers and which will drop your head temperatures by as much as 37° C. It mounts in the horn area, so the Jims team has designed a horn relocater hidden inside the housing. The fan can be installed to be turned on and off manually or it can be regulated by a thermostat controlled sensor. This kit is highly recommended for performance motors to help extend engine life. Complete kit includes high powered fan, housing, horn, hardware and all wiring, along with detailed instructions. Designed for Twin Cam models but can be fitted to other models with some fabrication.