Dmurph2016 Posted July 2 Share Posted July 2 How are the newer mp8s? 207/18 models? Looking at a 2018 truck that has a mp8, with about 350k miles on it. Anything I should look out for? I know people that have Cummins in that year range that have rebuilt around 400k miles or have had engine issues at that range. Anyone getting 700k out of these engines without rebuilding? I know at some point there will be some emissions things done but anytime soon? Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/ Share on other sites More sharing options...
The Heinz Posted July 2 Share Posted July 2 The fleet I worked for previously had Anthems around those years that weren't too bad when it comes to the engines. Aftertreatment and mDrives gave us problems, but they were getting close to (if not over) 800k miles before the company sold them off. We had the usual upper timing cover oil leaks and many of those ePRV deletes, but not too many engine problems in all honesty. We had a couple of cam issues, but with how big the fleet was, they were outliers. We had more issues out of the X15's in T680's in all honesty. I would trust some of these other guys' opinions though, that was in the past, and I'm a parts guy at a Mack dealership, where a lot of our work is the worst possible failures. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/#findComment-578378 Share on other sites More sharing options...
Bullheaded Posted Thursday at 02:55 PM Share Posted Thursday at 02:55 PM A freind of mine drives for a big Mack Pinnacle fleet up here pulling 5 axle pneumatic bulk tankers. They have MP8 505's and M-Drives. He told me very little problems. He said earlier ones would need the injectors replaced periodically. He said they'd start to vibrate while pulling and you knew it was injector time. But other than that, they leave them running during sleeper berths and he said no real ongoing issues. Maybe the pulling heavy helps. he said the newest ones are better then the 2009 to 2019's he started on. Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/#findComment-578428 Share on other sites More sharing options...
Dmurph2016 Posted yesterday at 02:45 AM Author Share Posted yesterday at 02:45 AM So a local dealer just had one come up for sale, it’s a 2015, it has 480k on it (I know, on the high side) what they are asking for it is pretty reasonable, and being an auto is a plus, any thoughts? Part of me is saying pass just based on the miles but it checks all the boxes. Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/#findComment-578642 Share on other sites More sharing options...
The Heinz Posted 23 hours ago Share Posted 23 hours ago If it's an mDrive, and it hasn't had transmission work done previously, it likely will soon. I wish I could be more positive about them, but we see a lot of failures even on brand new trucks with little miles, and I don't want to see anyone, especially a BMT member, get the short end of the stick. If this is the kind of truck you looking into, just be ready for that downtime and cost. If you notice an air leak in the bellhousing area, get that thing into an equipped shop ASAP, or you will have an even bigger bill than before. PRO TIP for any DIYers or anyone with one of these trucks, there's a little metal clip that holds the air line going from the solenoid to the clutch cylinder. We have found that replacing that clip and putting a couple of zip ties on the hose keeps the truck from being as much of a repeat customer. Number 7 down below, part number 1521975. Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/#findComment-578656 Share on other sites More sharing options...
Dmurph2016 Posted 11 hours ago Author Share Posted 11 hours ago 11 hours ago, The Heinz said: If it's an mDrive, and it hasn't had transmission work done previously, it likely will soon. I wish I could be more positive about them, but we see a lot of failures even on brand new trucks with little miles, and I don't want to see anyone, especially a BMT member, get the short end of the stick. If this is the kind of truck you looking into, just be ready for that downtime and cost. If you notice an air leak in the bellhousing area, get that thing into an equipped shop ASAP, or you will have an even bigger bill than before. PRO TIP for any DIYers or anyone with one of these trucks, there's a little metal clip that holds the air line going from the solenoid to the clutch cylinder. We have found that replacing that clip and putting a couple of zip ties on the hose keeps the truck from being as much of a repeat customer. Number 7 down below, part number 1521975. Yeah it has an m drive (one of the reasons I’m interested in it) pretty much what I was guessing was it’s at that mileage where it’s going to start needing stuff ( why company’s dump them at around 450-500k miles) the truck has all the specs I’m looking for and decent price, but again the mileage scares me. I know it could go 100k without issues or 1k, and either way it’s a risk. I just don’t have experience with newer stuff and it’s all new to me so I want to get all the info I can before making a decision. I have a feeling I’m going to end up passing on it just based on the miles but it checks all the boxes so I am torn. I wish I could afford something almost new but not in the cards right now. Quote Link to comment https://www.bigmacktrucks.com/topic/75736-how-are-newer-mp8s/#findComment-578698 Share on other sites More sharing options...
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