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10-21-2021, 11:04 PM | #1 |
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72 c10 alternator question
can somebody tell me the ac delco alternater part number. my truck has a/c and a 350 engine. thanks
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10-21-2021, 11:08 PM | #2 |
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Re: 72 c10 alternator question
10 SI? Or did you want the 7 or 8 digit GM number?
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10-21-2021, 11:17 PM | #3 |
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Re: 72 c10 alternator question
i need to buy one and my local parts places want almost a hundred bucks plus tax. there 45.00 on amazon but i need the correct a/c delco number to get the highest output. i dont want a 1 wire or internally regulater. just a stock hi output direct replacement.
thanks
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10-22-2021, 12:06 AM | #4 |
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Re: 72 c10 alternator question
found it.....
gm number 19135685 ac delco gold 3342127 63 amp $59.00 delivered amazon no core required
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10-22-2021, 12:36 AM | #5 |
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Re: 72 c10 alternator question
Rock Auto shows that as the 2 groove pulley version. They also have the single groove version. Their price on either is only $32.99 including a $6 core charge. Shipping and sales tax is additional.
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Jim Last edited by FirstOwner69; 10-22-2021 at 12:44 AM. |
10-22-2021, 12:57 AM | #6 |
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Re: 72 c10 alternator question
As you can see there are a bunch to choose from.
They go from lowest amperage to the highest at the bottom. |
10-22-2021, 01:45 AM | #7 |
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Re: 72 c10 alternator question
yes i want a 2 groove pulley because my a/c isnt restored yet this way i can have dual wp / alt belts and its 63 amp
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10-22-2021, 12:46 PM | #8 |
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Re: 72 c10 alternator question
Be aware if your truck came with the 37 amp alternator it has a different wiring harness than a truck that came with the 63 amp alternator.
This is not shown on any of the commonly available schematics. The 2 that I have parted the harnesses weren't in the best shape so I've never seen a complete unmolested one. But there are definite differences.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
10-22-2021, 02:26 PM | #9 |
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Re: 72 c10 alternator question
HO455 is the difference in the gauge size of the output wire?
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10-22-2021, 05:03 PM | #10 |
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Re: 72 c10 alternator question
for decades i,ve upgraded the alternators with no problems ever. its not like your drawing max amps constantly
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10-22-2021, 09:08 PM | #11 |
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Re: 72 c10 alternator question
The most complete one I've seen appeared the have the same size wire but there were 2 of them coming off the alternator. One went to an insulated post (Same style as the one next to the battery) near the horn location. There was a second post a couple of inches from the one with a jumper wire between them and some other wires to the voltage regulator.
The other wire I assume went to the battery like normal but, the harness was seriously hacked and it wasn't worth saving so I trashed it. I wish I could come across a complete one to see how GM actually wired it. It is possible that GM just added a second harness to a regular 37 amp harness. I believe the extra posts were provided to allow customers a place to hook their large amperage loads near or at the junction point of the main harness where proper voltage sensing would occur.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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