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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

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  • 7 Post By grabowski
  • 1 Post By Freddyack
  • 1 Post By racerCharlie

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Old 03-05-2015, 07:00 PM   #1 (permalink)
grabowski
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Alternator Pulley Stuff.

My local Chevy dealer was able to pull up the 6.5 alternator pulley part number.

#01989104 AKA #19891040

Outside Diameter: 66.7mm / 2.626in
Inside Diameter: 17mm / 0.669in
Overall Thickness: 32.3mm / 1.272in
Serpentine Grooves OD: 62mm / 2.441in
Grooves: 6
Nut Recess Depth: 17.8mm / 0.701in
Center of Rear Groove to Rear of Pulley: 9.9mm / 0.39in

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Old 03-05-2015, 09:57 PM   #2 (permalink)
Freddyack
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Added to 6.5L Parts List and FAQs

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Old 03-05-2015, 10:42 PM   #3 (permalink)
racerCharlie
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Thanks, Grabowski! I just bought one on-line thanks to your help. I have a smaller than typical gasser pulley (2 3/16 flange to flange as opposed to the typical incorrect gasser 2 3/8" pulley). The indicated rpm's are driving me nuts. To say nothing of the belt tensioner range limitations.
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Old 03-06-2015, 05:35 PM   #4 (permalink)
JCDiesel
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Nice. I have some measurements to take.
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my guess would be shocks
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Even the guys who own them aren't 5.7 guys.
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