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#1 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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99 454 belt tensioner-discontinued?
I have a 1999 K2500 Suburban with a 454 and a cannot find a belt tensioner anywhere. It DOES have the air pump and everywhere I check they say it's discontinued. The GM part # is 10237275 Any ideas?
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#2 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
I will look at work it cant be totally discountied as there are alot of these trucks out there the gm one maybe discounied but thereare several aftermarket companies making them
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#3 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
Di you need jsut a pully or the whole assembly?
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#4 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
I got one company that list the tenisor under part number 10237275 but they d not have it
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#5 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
I need the tensioner. The pulley itself is fine and readily available, but so far I've had no luck finding the tensioner itself...anywhere. Scouring wrecking yards now
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#6 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
wow, this thing is unbelievably hard to find. Anyone ever found one on any site? I was thinking about Canadian GM dealers? eh
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#7 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
Did you ever find one
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#8 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
no, I tried one from Summit Racing they said would fit, but no luck...running out of ideas, pretty disappointed in GM.
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#9 |
Registered User
Join Date: May 2014
Location: Aurora CO
Posts: 4
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Re: 99 454 belt tensioner-discontinued?
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#10 |
Registered User
Join Date: Oct 2009
Location: .
Posts: 2,185
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Re: 99 454 belt tensioner-discontinued?
There's one on ebay, kind of salty...
http://www.ebay.com/itm/GM-10237275-...6a37b8&vxp=mtr Do you have emissions inspections where you live? I am not a fan of removing emissions components, but it might make sense to remove the air pump, and put a conventional belt and tensioner on the truck. There are tons and tons of vortec 454s that don't have air pumps. And what happens in 5-10 years when the belt tensioner fails again? |
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#11 | |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
Quote:
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#12 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
I might just have to go with the Ebay replacement option. I just cant believe out of all the applications, k2500, k3500, that a wrecking yard doesn't have one. I assume this is originally a California truck so I'm looking for any help in searching yards in that area. I've got a request out on Row52 for help.
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#13 |
Registered User
Join Date: May 2014
Location: Aurora CO
Posts: 4
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Re: 99 454 belt tensioner-discontinued?
This link shows two places in the Seattle area that are supposed to have your part.
http://oemcats.com/oem-parts/10237275.html |
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#14 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
I did check that site listing several GM dealers that have the part, but that's false. I spoke to several dealers in my area, and they're are all on the same database indicating this part is unavailable nationwide. My question is, since this part was discontinued by GM in Sept 2014, where did the existing parts sitting on the parts shelf go? and is there a database for that? I'd sure like to find a new OEM part in the box.
I can find parts for my old 1970 easier than this... |
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#15 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
the dealers sell them out then dont restock them
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#16 |
Registered User
Join Date: Jan 2015
Location: Orangevale CA
Posts: 7
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Re: 99 454 belt tensioner-discontinued?
I'm having the same issues locating one of these for my 2000 K2500 4x4. I did find 2 of them at PNP on Stockton Blvd in Sacramento. Both units were broken in the same spot as the one on my truck. It appears that the "pin" in the cast aluminum or pot metal spring retainer cap cracks or shears off after the plastic receiver stretches or strips out. So that makes 3 tensioners I've seen with the exact same failure. Weak design to say the least.
I purchased the damaged ones for $13 from the junkyard. Figured I would play around with them and see what I could come up with. I'm going to try and TIG one of the cracked caps back together tomorrow after work but I have my doubts as to the purity of said aluminum in the cap. Option 2 will be to build my own tensioner either similar to the one listed on ebay or a custom design like the way an alternator tensions a v belt on a 350 for example. We'll see what happens as my truck has been sitting for 3 weeks now. I will report back with my progress. Here are pics of the suspected failure though I'm sure most of you have already figured it out: |
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#17 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
That's exactly where mine failed also. I ordered the replacement, home-fabricated, part on Ebay which I hope will get me moving again. Look up a Hayden #5899 tensioner. It actually lists our vehicles as fitting. I discovered it was close, but wouldn't fit. The tensioner seemed too "thick" and the pulley was too large, but that's easily swapped.
If your looking to fab your own, this Hayden tensioner is a good start. Good luck and if it works, I'll buy one. |
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#18 |
Registered User
Join Date: Jan 2015
Location: Yorba Linda, CA
Posts: 6
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Re: 99 454 belt tensioner-discontinued?
Please note that you must be a supporting member to post classified items. This includes but is not limited to What Its Worth, Want To Buy, Want To Trade, and For Sale. Please consider supporting the forum by subscribing. Further information on the subscription levels available are located here
If you need any further assistance with that please contact any Admin for help. Last edited by truckdude239; 01-22-2015 at 01:57 PM. |
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#19 | |
Registered User
Join Date: Jan 2015
Location: Orangevale CA
Posts: 7
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Re: 99 454 belt tensioner-discontinued?
Quote:
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#20 | |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: 99 454 belt tensioner-discontinued?
Quote:
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#21 |
Registered User
Join Date: Jan 2015
Location: Orangevale CA
Posts: 7
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Re: 99 454 belt tensioner-discontinued?
So far so good. After a little die grinder action and bench testing the tensioner about 20 times in my vice I reinstalled it on the truck tonight. I let it idle for a while in the driveway and then went for a 1/2 hour test drive (good thing gas is cheap right now). Seems to be working good. Time will tell how long it holds but I'm pretty optimistic.
I was lucky that the plastic inside the tensioner from the junkyard was in good shape otherwise it would have been a lost cause. I saved the other broken cap and pin and will TIG it up as a spare until hopefully the Aftermarket steps up. Brwn70GMC did you get your replacement yet? I'm curious about the fit up, quality, etc. It appears to be a good option too. |
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#22 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
I'm expecting the part anyday now. Your tig job looks good. Good luck. I'll advise when I install my ebay fix-er.
On a different note, Im looking at 2003 6.0l Any thoughts? |
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#23 |
Registered User
Join Date: Jan 2015
Location: Orangevale CA
Posts: 7
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Re: 99 454 belt tensioner-discontinued?
Well one plus is belt tensioners are available for them.
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#24 |
Registered User
Join Date: Dec 2014
Location: north of Seattle, WA
Posts: 29
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Re: 99 454 belt tensioner-discontinued?
Got my tensioner part, will install it Monday and we'll see if it flies. My 7.4 must have injector issues, it does idle rough. I thought it would improve after intake gaskets but continues to idle horrible. Might trade it in on the 6.0 crew cab.
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#25 |
Registered User
Join Date: Jan 2015
Location: Yorba Linda, CA
Posts: 6
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Re: 99 454 belt tensioner-discontinued?
Please let everyone on this forum know how it works. Take a look at the knock sensor. Wayne 38synergy@gmail.com
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