How to replace the alternator in 4.8L, 5.3L, 6.0L, and 6.2L engines on GMC Sierra 3500 Classic?

To replace the generator in vehicles with 4.8l, 5.3l, 6.0l, and 6.2l engines, take the necessary action starting by never left behind that to remove the negative Battery Cable. Remove the intake manifold sight shield and the accessary Drive Belt. Unplug the engine harness electrical connector from the generator, move the generator battery jumper cable boot. Disconnect the jumper cable nut and the terminal of the generator , then remove the generator bolts to remove the generator. To install, first install the generator and strictly follow the fastener notice. Surface the generator bolts to 55 n.m (41 lb ft) then attach the generator battery jumper cable terminal to the generator stud and the nut to the generator, sue tighten it to 9 n.m (80 lb in). Position the generator battery jumper cable boot along with the connection of the engine harness electrical connector to the generator. Last but not least, reinstall the accessory Drive Belt, the intake manifold sight shield, and reconnect negative Battery Cable.

OEM GMC Sierra 3500 Classic Alternator

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GMC Sierra 3500 Classic Alternator Part Number: 19244751
$309.77 MSRP: $604.07
You Save: $294.30 (49%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Generator Assembly, (Remanufacture); Generator, Engine Electrical
- Replaces: 10464476, 15200109, 15263859, 20989650, 22781130, 19151921
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Classic Alternator Part Number: 22781131
$271.79 MSRP: $599.42
You Save: $327.63 (55%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Replaces: 19118686, 15847291, 94665137, 15222342, 15124532, 15222341, 15226003, 20989651
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Classic Alternator Part Number: 15128978
$325.33 MSRP: $609.73
You Save: $284.40 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Replaces: 10371020
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Classic Alternator Part Number: 19353851
Product Specifications
- Other Name: Generator Assembly, .; Generator, Engine Electrical
- Replaces: 15845338, 15845337, 19118688, 19118692
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL

GMC Sierra 3500 Classic Alternator

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GMC Sierra 3500 Classic Alternator Parts Questions & Experts Answers

Alternator
22781131
Q: How to replace the alternator in 4.8L, 5.3L, 6.0L, and 6.2L engines on GMC Sierra 3500 Classic?
A:
To replace the generator in vehicles with 4.8l, 5.3l, 6.0l, and 6.2l engines, take the necessary action starting by never left behind that to remove the negative Battery Cable. Remove the intake manifold sight shield and the accessary Drive Belt. Unplug the engine harness electrical connector from the generator, move the generator battery jumper cable boot. Disconnect the jumper cable nut and the terminal of the generator , then remove the generator bolts to remove the generator. To install, first install the generator and strictly follow the fastener notice. Surface the generator bolts to 55 n.m (41 lb ft) then attach the generator battery jumper cable terminal to the generator stud and the nut to the generator, sue tighten it to 9 n.m (80 lb in). Position the generator battery jumper cable boot along with the connection of the engine harness electrical connector to the generator. Last but not least, reinstall the accessory Drive Belt, the intake manifold sight shield, and reconnect negative Battery Cable.