HD cooling?

[GMC GIANNI]

i have a 1989 gmc k2500 6.2 J vin truck. i am trying to buy engine oil cooler lines. i cannot find out how to tell if i have heavy duty cooling or not...

 

[GMC GIANNI]

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[Schurkey]

What is the RPO code for "heavy duty cooling", and is that code listed on the sticker in the glovebox?

 

[df2x4]

My '97 K1500 Suburban has an RPO for a "Cold Weather Package," which ironically consists of some extra coolers and a block heater. Can't remember the RPO off the top of my head but I can look the next time I pull the 'burb out of storage.

 

[GMC GIANNI]

What is the RPO code for "heavy duty cooling", and is that code listed on the sticker in the glovebox?

Not sure at the moment, after I go and look at the stock interior parts tonight I'll take some pictures of the glove box

 

[MIHELA]

I think it's KNP.

 

[GMC GIANNI]

searched the glove box stickers list. no KNP. I went with the the normal non hd lines and they fit just fine. thanks everybody for the help.