How to service and repair the alternator on GMC C2500?

Disassembling the Alternator requires starting with the removal of the accessory Drive Belt and detachment of the negative Battery Cable. The service begins with removing the generator mounting bolts followed by disconnecting electrical generator connections before generator removal. The installation process starts by setting the generator into position then tightening generator mounting bolts to 50 n.m (37 lb ft). Reinstall the electrical connections onto the generator while making sure the b+ nut gets tightened up to 18 n.m (13 lb ft). Screw the accessory Drive Belt back into place before you tighten the negative Battery Cable bolt to 17 n.m (13 lb ft).

OEM GMC C2500 Alternator

Generator

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26 Alternators found

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GMC C2500 Alternator
Part Number: 19152476
$138.78 MSRP: $414.93
You Save: $276.15 (67%)
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Product Specifications
- Other Name: Generator, Engine Electrical
- Replaces: 10463415, 10463111
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator Assembly
Part Number: 19151861
Product Specifications
- Other Name: Reman Alternator (Delco 12Si 78 Amps); Alternator; Generator, Engine Electrical
- Replaces: 10463058
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator
Part Number: 19152469
Product Specifications
- Other Name: Generator Assembly, (Remanufacture) (Delco Cs130 100 Amps); Generator, Engine Electrical
- Replaces: 10463148, 10463045
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC C2500 Alternator
Part Number: 19152477
Product Specifications
- Other Name: Generator Assembly, (Remanufacture) (Delco Cs130 100 Amps); Generator, Engine Electrical
- Replaces: 10463245, 10463424
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator
Part Number: 19244765
Product Specifications
- Other Name: Generator, Engine Electrical
- Replaces: 19152119, 10463686
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator
Part Number: 10495435
Product Specifications
- Other Name: Generator, (Remanufacture); Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
View related parts
GMC C2500 Alternator Assembly
Part Number: 19151858
Product Specifications
- Other Name: Generator, Engine Electrical; Alternator
- Replaces: 01979865, 1979865, 1105360, 01105360
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator
Part Number: 19151871
Product Specifications
- Other Name: Generator, Engine Electrical
- Replaces: 01979860, 01979862, 1979867, 01979867, 10497077, 1979860, 1979862
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990, 1985-1986 GMC C2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Alternator
Part Number: 10463421
Product Specifications
- Other Name: Generator Assembly-Remanufacture Cs130; Generator, Engine Electrical
- Replaces: 10463048
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
View related parts
GMC C2500 Alternator
Part Number: 19151866
Product Specifications
- Replaces: 01979866, 01979859, 10495425, 10497076, 1979866, 01979861, 1979861, 10495426, 1979859
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator Assembly
Part Number: 19151862
Product Specifications
- Other Name: Generator, Engine Electrical; Alternator
- Replaces: 01101308, 1101308, 10463397
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 19151890
Product Specifications
- Other Name: Generator, Engine Electrical
- Replaces: 01101061, 01979868, 1101061, 1979868
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 19244781
Product Specifications
- Other Name: Generator Assembly, (Remanufacture); Generator, Engine Electrical
- Replaces: 10463940, 19152043
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL
View related parts
GMC C2500 Alternator
Part Number: 19244770
Product Specifications
- Other Name: Generator Assembly, (Remanufacture); Generator, Engine Electrical
- Replaces: 10464081, 10463636, 19152127
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 19244779
$254.43 MSRP: $455.92
You Save: $201.49 (45%)
Product Specifications
- Other Name: Generator Assembly, (Remanufacture); Generator, Engine Electrical
- Replaces: 10463652, 19152038
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 10463044
Product Specifications
- Other Name: Generator Assembly-Remanufacture; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990, 1985-1986 GMC C2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 10463046
Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1991 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 10463001
Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1991 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Alternator
Part Number: 10463425
Product Specifications
- Other Name: Generator Assembly-Remanufacture Cs130; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
View related parts
GMC C2500 Alternator
Part Number: 10463416
Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Replaces: 10463039
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS

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GMC C2500 Alternator

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GMC C2500 Alternator Parts Questions & Experts Answers

Alternator
19244779
Q: How to service and repair the alternator on GMC C2500?
A: Disassembling the Alternator requires starting with the removal of the accessory Drive Belt and detachment of the negative Battery Cable. The service begins with removing the generator mounting bolts followed by disconnecting electrical generator connections before generator removal. The installation process starts by setting the generator into position then tightening generator mounting bolts to 50 n.m (37 lb ft). Reinstall the electrical connections onto the generator while making sure the b+ nut gets tightened up to 18 n.m (13 lb ft). Screw the accessory Drive Belt back into place before you tighten the negative Battery Cable bolt to 17 n.m (13 lb ft).

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