sonoma fan belt - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wlf89 · 09-01-2010, 08:30 PM

my brother has a 99 sonoma and has bought 2 fan belts and they are both to short with the tenioner pushed down it likes about a 1/4 of the alternator pulley goin on there is no way i could get it on. one is a gatorback and they other is a dayco anyone have any ideas or know what lenth they are supposed to be these sure aint right

68C15 · 09-03-2010, 10:41 PM

NAPA shows it takes a NBH 25060950. IIRC Gates would be a K060950.
these are for a 99 with the 4.3 and AC. without AC it is NBH 25060870.

it also helps if you put the belt on the grooved pulleys first and finally the idler pulley.

do you have it routed correctly? (post a pic)

gchemist · 09-04-2010, 08:52 PM

Post the part numbers. The last three digits is size in inches. 0950=95" You can try a 0955. The belt tensioner has a range on it. Look at the arrow on it.

68C15 · 09-05-2010, 06:14 AM

Quote:

Originally Posted by gchemist

The last three digits is size in inches. 0950=95"

kind of, IIRC a 950 is like 94.7" or something like that.

**truckdude239** · 09-05-2010, 10:52 AM

here is the belt with ac http://shop.advanceautoparts.com/web..._1148484417___

and without http://shop.advanceautoparts.com/web..._1148506126___

09-01-2010, 08:30 PM	#1
wlf89 69 c/10 lwb fleetside Join Date: Jul 2004 Location: saint joseph TN Posts: 195	sonoma fan belt my brother has a 99 sonoma and has bought 2 fan belts and they are both to short with the tenioner pushed down it likes about a 1/4 of the alternator pulley goin on there is no way i could get it on. one is a gatorback and they other is a dayco anyone have any ideas or know what lenth they are supposed to be these sure aint right __________________ 69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed

09-03-2010, 10:41 PM	#2
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: sonoma fan belt NAPA shows it takes a NBH 25060950. IIRC Gates would be a K060950. these are for a 99 with the 4.3 and AC. without AC it is NBH 25060870. it also helps if you put the belt on the grooved pulleys first and finally the idler pulley. do you have it routed correctly? (post a pic) Last edited by 68C15; 09-03-2010 at 10:43 PM.

09-04-2010, 08:52 PM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: sonoma fan belt Post the part numbers. The last three digits is size in inches. 0950=95" You can try a 0955. The belt tensioner has a range on it. Look at the arrow on it. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

09-05-2010, 10:52 AM	#5
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: sonoma fan belt here is the belt with ac http://shop.advanceautoparts.com/web..._1148484417___ and without http://shop.advanceautoparts.com/web..._1148506126___ __________________ 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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