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Scourage · 01-17-2010, 09:57 PM

I had found a thread somewhere while researching this where someone had posted a $250 cost from GM. That's a bit insane

I found some info on NAPA and Gates websites and some interchangeabilty. NAPA shows the 4PK982 to be the same as their 25-040388 belt. 982 mm = 38.7" so the 388 belt is close, but since this is a stretch fit belt, I'm wondering if that's close enough.
Then as I look into it even further, I see NAPA listing the special stretch-fit belts for the newer applications that don't use tensioners. Haven't got a conversion for that yet. Going to call them in the AM.

I saw where the P/N listed for the replacement belt on one of the smaller pulley mods was just a standard 4 rib serpentine belt. That makes me wonder if if they are gonna fit OK and last very long

Checking several parts stores on-line, I see many 6.2l GM's using the 040378 belts for the A/C, that's about an inch smaller and I don't know if they use a tensioner or not.

I'll see what Gene has too offer and if NAPA can help at all.

01-17-2010, 09:57 PM	#5
Scourage Syntax Error Drives: 2010 Camaro 2SS/RS Join Date: Jan 2009 Location: SE Nebraska Posts: 557 View My Garage	I had found a thread somewhere while researching this where someone had posted a $250 cost from GM. That's a bit insane I found some info on NAPA and Gates websites and some interchangeabilty. NAPA shows the 4PK982 to be the same as their 25-040388 belt. 982 mm = 38.7" so the 388 belt is close, but since this is a stretch fit belt, I'm wondering if that's close enough. Then as I look into it even further, I see NAPA listing the special stretch-fit belts for the newer applications that don't use tensioners. Haven't got a conversion for that yet. Going to call them in the AM. I saw where the P/N listed for the replacement belt on one of the smaller pulley mods was just a standard 4 rib serpentine belt. That makes me wonder if if they are gonna fit OK and last very long Checking several parts stores on-line, I see many 6.2l GM's using the 040378 belts for the A/C, that's about an inch smaller and I don't know if they use a tensioner or not. I'll see what Gene has too offer and if NAPA can help at all.