RPO code and others

[JudgeRusty]

I reviewed the sticker in my 1988 K1500 glove box and compared to an online list to decipher the codes.

First, for some of the codes, multiple interpretations were provided. Is this because the list I was using was not model year specific?

Also there seemed to be duplicate codes. For example, I have both C4F and C5G for different GVWRs.

Lastly, for now, there are other codes around the sticker like PLT-T, WA-L8865, U8866, 608DPV, FIN48P71, 016 and 8943 (I think WA-L8865 and U8866 are paint codes for the two-tone doo-doo brown scheme, but I also have RPO codes for ZY4, Z53, 32U and 58L).

Can someone interpret these other codes?

 

[95burban]

Compnine.com is a good way to learn about your truck.

 

[GoToGuy]

A RPO code can describe the basic option. Example " OCR " = engine oil cooler. The problem is there a bunch of different oil cooler configurations.
The most accurate way is to refer to the RPO codes in your year

You must be registered for see images attach

OE service manual. The first section describes and breaks down everything about your year truck. Weight, cargo, trans, eng, options, measurements width height, track so on. This is an example . If you don't have the OE manuals , in sticky above is a link to get the free PDF. You need it, it's your new best friend.

 

[Caman96]

Compnine.com is a good way to learn about your truck.

Compine will have very little information for a 1988.

 

[GoToGuy]

You want the correct , applies to your year, it's right there in the service manual. The vin breakdown , why bother with on line . Your wanna know what your truck is about. Go to the source document.

 

[1998_K1500_Sub]

Agree with @GoToGuy, download the 1988 manual. Manuals can be found here:

88-98 Service Manuals

Over the years I have collected a bunch of GM service literature. Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/} If you're not...

www.gmt400.com

I happen to have a copy of the 1988 manual, here's the RPO list and VIN breakdown. Each is a one-pager.

 

[JudgeRusty]

Thanks a bunch.
I was aware of rpo codes and was aware of the available manuals; I did not know the two were combined.

Downloading today.

 

[hatzie]

Thanks a bunch.
I was aware of rpo codes and was aware of the available manuals; I did not know the two were combined.

Downloading today.

The RPO codes are in the front pages of the light truck parts books.
Unfortunately GM stopped printing parts books after the 1993 model year. I have fiches for the 1994-2000 light trucks but I haven't digitized them.

 

[1998_K1500_Sub]

I have fiches for the 1994-2000 light trucks but I haven't digitized them.

There's still time. Go for it.