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+--- Thread: cm870 belt tensioner (/showthread.php?tid=3023)
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RE: cm870 belt tensioner - tree98 - 04-24-2018
(04-24-2018 )Brock Wrote: Yeah the tensioner absolutely is not Cummins only, Cummins does not make tensioners. It's usually these guys or similar
http://m.acdelco.com/auto-parts/belts-and-hoses/belt-tensioner-pulley.html
Good information thanks!
RE: cm870 belt tensioner - Chamberpains - 04-24-2018
I know Goodyear makes the belt and an after market tensioner. Both have worked good for me. And the $$ is right. If you really have a problem with the auto tensioner, Granger's makes a manual bolt adjustment 1 that cost about $350. I'd have to search it again but know it exists.
RE: cm870 belt tensioner - Signature620 - 04-24-2018
(04-24-2018 )Rawze Wrote: I have always used a bit of plain water in a squirt bottle. I would think WD would leave an oily film?.
I only use a quick squirt to determine which belt is making the noise and if it's the belt or the tension at fault. A good belt with poor tension will keep squealing but a bad belt with good tension will tend to go silent for a moment.
It's not a science, just a trick that works for me 99% of the time.
RE: cm870 belt tensioner - aaronb - 04-24-2018
http://www.daycoproducts.com/dayco%C2%AE-gold-label%C2%AE-heavy-duty-automatic-belt-tensioner
You can go here and get the proper part number from dayco. You can cross that number to other manufacturers. I don’t know if you buy online. I used eBay and got the fan tensioner for 90 dollars that way. It was a genuine dayco. Good luck.
RE: cm870 belt tensioner - 3406E - 02-26-2024
Does anyone know if the cm870 and cm871 share the same drive and accessory belt? if yes i have the part number already for the accessory belt from a 871 i would just want to know the drive belt part number now. I use the cummins online store to ask for the cm870 belt for the truck but they said i have to get that info from truck manufacturer. thanks
RE: cm870 belt tensioner - Rawze - 02-26-2024
(02-26-2024 )3406E Wrote: Does anyone know if the cm870 and cm871 share the same drive and accessory belt? if yes i have the part number already for the accessory belt from a 871 i would just want to know the drive belt part number now. I use the cummins online store to ask for the cm870 belt for the truck but they said i have to get that info from truck manufacturer. thanks
go to ...
parts.cummins.com
and put in the engine ser# (ESN#) on the search bar and all access to parts and other info is right there.
RE: cm870 belt tensioner - 3406E - 02-26-2024
thanks