Robsraptor

Thank you for the info. My Mack parts people act like I’m looking for parts for a car from the Flintstones. I think they are too lazy to look it up. I’ll try a different Mack dealer.

What is the part number for the injector O-rings on a 1992 EM7? Is there any aftermarket places to get them besides the Mack dealer? Can I just use standard o-rings? Thanks in advance. Sent from my iPhone using Tapatalk

I searched for this but couldn't find anything on it. I have a 1992 CH613. It was a 2 axle tractor that was turned into a water truck. (By the previous owner) The headlights turn off when you turn the ignition on. The circuit breaker for the headlights starts clicking like crazy. I don't have a schematic but it seems to me that the ignition circuit is drawing power from the headlight circuit. Let me know any ideas. Thanks in advance!