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Is there anyone in the Des Moines area that would sell me an alternator for my 1997 M1078, Cat 3116? I'm traveling thru and mine just crapped the bed.

Hey crew, I just did a search for "3116 cruise control" and came up snake eyes, as did my youtube search. I see the generic cruise kits promising one size fits all (highly unlikely). Have any of you ever done this? I know I could use the hand throttle, but I was hoping for a legit cruise...

For those of us who aren’t purists and think that $3500 is a bit steep for cab AC, has anyone used this option and if so, what had been your experience so far? https://www.classicautoair.com/shop/complete-ac-systems/custom-colder-universal-air-conditioning-system/

1997 M1078. While replacing my oil pan gasket, I discovered 2 hairline cracks in my block, consistent with death by driveline vibration (which I have been wrestling with on this truck) Drivelines were balanced and replaced last year, and I’ve been repairing the collateral damage ever since...

Pulling this gear and she’s fighting me. Both the TM’s and the Cat manuals are proving useless. Is there a special puller or a lot of heat that I need?

Can anyone tell me what type of MRAP wheels these are? They are aluminum and 10 lug pattern, with an 11" hole. Are these Hutchinsons?

1997 M1078, 3116 Driving home last night, oil pressure warning lights up on the dash. I pull over immediately. Truck idles fine for the second before I hit the switch and I thought it must be a sensor problem. Looked under the cab and the engine bay is covered with oil. Now I’m trying to...

1997 M1078, 3116 Engine So, I’m broke down in Colorado due to my stock engine fan coming loose of the hub. I ordered a replacement fan to be overnighted from Midwest Military. It’s now here and the bolt hole pattern is slightly too large. I could drill it out, and make it work, but with over...

Does anyone have the actual part number Caterpillar uses for the M1078, 3116 radiator fan? Mine shat the bed on me during a road trip yesterday.

My radiator fan solenoid isn’t exhausting. The rubber plug inside the bullet is old and cracked and keeps the charge line to the fan pressurized. Anyone got a line on a replacement?

I finally got my CTIS working. Happy day. It was failed when I bought it, and I *hoped* I could resurrect it. A bit of reading on this forum lead me to jumper out the tank pressure switch and suddenly she came to life. So all I needed was a pressure switch. Easier said than done. Replacement...

I think my air compressor is pushing a fair amount of oil into my air system, and I imagine it is way overdue for a rebuild. Who has rebuilt them and what kit do you recommend?

I have a pretty good air leak from the cab air suspension bag, passenger side. I was hoping to get her fixed prior to bugging out in her ;). Can anyone give me a line on locating one?

I have heard rumors that you can buy used tires with 80% tread directly from military bases. Is this true? If so, how?

My fan clutch is not engaging. These require air pressure to engage, correct?

I shut the girl down to investigate why she was running hot (fan wasn’t engaging). I lifted the cab to inspect the fan clutch air line, then lowered it to fire her up and build up some air pressure. Now, when I try to start her up, the starter is not even trying to engage. I have DC power, but...

Hi all. First post here. I’m limping my newly acquired ‘97 M1078 from Michigan to Dallas, TX. My mechanical background: Back in the day, I was a diesel mechanic on semi’s and construction heavy equipment. When I inspected her and decided to buy from an individual (in Michigan), she seemed...