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

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26 Alternators found

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GMC C2500 Alternator Part Number: 19152476
$141.55 MSRP: $423.23
You Save: $281.68 (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
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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
View related parts
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
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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

Want to cut long-term maintenance and repair costs? Choose OEM Alternator. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine GMC C2500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM GMC C2500 Alternator includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

GMC C2500 Alternator is one of the nature's marvels well appreciated for its effectiveness and efficiency, which stands out in the conversion of mechanical electricity into electrical electricity to fuel the car electrical system and charge the battery. The GMC C2500 alternator comes with a two piece cast aluminum casing, Three main components of the GMC C2500 alternator include stator, rotor, pulley, and cooling fan. This alternator actually generates AC current which is again converted into a DC current with the help of diodes and the power generated is regulated by a voltage regulator. Being compatible with most GMC C2500 series that was manufactured between the year 1960 and 1998, it will be of great benefit to those owners who wish to sustain their trucks in the prime way possible. The GMC C2500 alternator is quite notable, specifically in automobiles with higher electrical requirements because high output types can be supplied. This alternator does not just improve the performance of the GMC C2500 but also plays an important role of ensuring the safety of the automobile by making sure all the electrical appliances of the car are running as they should. GMC C2500 Alternator's functional special features include sophisticated processes for cooling and another unique feature that is a permanent magnet or field coil. In conclusion, the GMC C2500 Alternator represents the rock and strength of the car, proving itself as the necessary element for the further work and a reliable increase in the life span of the vehicle.

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).