List of light bulbs by number & application ?

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mtnmankev

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Location
Ash Fork, Arizona
First Name
Kevin
Truck Year
1984, 1983
Truck Model
K10, C20
Engine Size
383 Stroker, 350
I was sure my factory shop manual had a list of bulbs used in the trucks and had the bulb numbers and applications, but now I cannot find that page.
I need to get the number for the interior dome lamp, it's a two terminal base like the 1157 taillight bulbs, but it's a single filament and the **** that lock it in the socket are straight across from each other, not offset like the 1157 is, if my memory is correct.
I still don't understand why they used a two terminal bulb in the application, when a single should have worked fine.
 

AuroraGirl

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Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
I was sure my factory shop manual had a list of bulbs used in the trucks and had the bulb numbers and applications, but now I cannot find that page.
I need to get the number for the interior dome lamp, it's a two terminal base like the 1157 taillight bulbs, but it's a single filament and the **** that lock it in the socket are straight across from each other, not offset like the 1157 is, if my memory is correct.
I still don't understand why they used a two terminal bulb in the application, when a single should have worked fine.

What year? I can show the 1980 as I'm sure bulbs might have changed over time
 

custodian

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Location
Catawba
First Name
William
Truck Year
1973, 1985
Truck Model
C10
Engine Size
5.3 LS, 350
This is a list of the bulbs and application from my 85 C10 owners manual.

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mtnmankev

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Location
Ash Fork, Arizona
First Name
Kevin
Truck Year
1984, 1983
Truck Model
K10, C20
Engine Size
383 Stroker, 350
Thanks, my truck is an 82 made for 83 model year.
My 84 shop manual calls for 1004, and your 85 manual shows the cylinder shaped bulb, so 85 seems to be the year they redesigned the dome lamp socket.
 

Grit dog

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Washington
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Todd
Truck Year
1986
Truck Model
K20
Engine Size
454
Sounds just like the bulb for my cargo light, 1986 model.
That is an 1142 bulb. And confirmed by the chart that @custodian posted.

And thanks @custodian. I saved that list for future reference.
 

mtnmankev

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Ash Fork, Arizona
First Name
Kevin
Truck Year
1984, 1983
Truck Model
K10, C20
Engine Size
383 Stroker, 350
Here's from my factory 84 shop manual, I believe it's the same for 82 and 83, and may apply for earlier models.

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custodian

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Location
Catawba
First Name
William
Truck Year
1973, 1985
Truck Model
C10
Engine Size
5.3 LS, 350

AuroraGirl

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Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
1980

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jackgtf

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Location
Idaho
First Name
Jack
Truck Year
1978
Truck Model
K10
Engine Size
350
Thought I'd add the lamp bulb page from my 1978 k10 manual. And ask a question, sorry to bump an old thread, this came up when I searched for P model info.

My question is, what does the P model mean? The title lists this as a 1978 K10 and vin decoders do as well. I was just curious what the P models are?

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jackgtf

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Nov 1, 2023
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Location
Idaho
First Name
Jack
Truck Year
1978
Truck Model
K10
Engine Size
350
My question is, what does the P model mean? The title lists this as a 1978 K10 and vin decoders do as well. I was just curious what the P models are?
Ahh, i just found out, the P model is a Step Van (P10), an old box delivery van. Hope someone can use the Lamp Bulb list at least.
 

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