How to replace the alternator on GMC Acadia?

To change the Alternator, disconnect the negative Battery Cable and the Drive Belt should be removed as well. Reposition the battery positive junction block cable boot , and remove the battery positive junction block cable from generator nut , then battery positive junction block cable terminal from the generator stud. Now disconnect the engine wiring harness electrical connector from the generator, and take off the power steering reservoir inlet hose clip from the power steering fluid reservoir hose clip bracket. Loct ite the idler pulley bolt and slide the pulley out as far as possible before gen nuts. Next, remove the air conditioning (A/C) compressor/evaporator hose bracket from the left generator stud, and the power steering fluid reservoir hose clip bracket from the right generator stud. Take out the generator and idler pulley from the vehicle, then separate the idler pulley from the generator. Attach the idler pulley on the generator, mount it on a vehicle. Secure the generator to the studs, and attach the power steering hose fluid reservoir clip bracket to the left generator stud and the a/c compressor/evaporator hose clamp bracket to the right generator stud. Fasten generator nuts finger tight and idler pulley bolt also finger tight. The specified generator bolt/nuts are tightened in a sequence as follows; idler pulley bolt, left nut and right nut, to 50n.m (37 lb ft). Reattach the power steering reservoir inlet hose clip to the power steering fluid reservoir hose clip bracket and plug the engine wiring harness electrical connector into the generator. Connect the battery positive junction block cable terminal to the generator stud and tighten the battery positive junction block cableugo the generator nut 22 n.m (16 lb ft). Replace the battery positive junction block cable boot over the stud and on to reinstall the Drive Belt, and at last complete reconnect with the negative Battery Cable.

OEM GMC Acadia Alternator

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8 Alternators found

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GMC Acadia Alternator Part Number: 23279588
$443.81 MSRP: $880.95
You Save: $437.14 (50%)
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Replaces: 20838975, 25815839, 23105717, 23480116
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Alternator Part Number: 84093307
$269.10 MSRP: $487.07
You Save: $217.97 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2021 GMC Acadia | SL, SLE, SLT | 4 Cyl 2.5 L GAS
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GMC Acadia Alternator Part Number: 13546930
$230.64 MSRP: $413.70
You Save: $183.06 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 13561035
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Alternator Part Number: 13546926
$165.50 MSRP: $296.86
You Save: $131.36 (45%)
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 13561033
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Alternator Part Number: 13539730
$205.22 MSRP: $367.37
You Save: $162.15 (45%)
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 85759062
- Replaces: 13529434, 13520473, 13534124
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Alternator Part Number: 13534125
$244.83 MSRP: $439.15
You Save: $194.32 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 13565646
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Alternator Part Number: 13520809
$196.87 MSRP: $390.78
You Save: $193.91 (50%)
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 13553838
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2023 GMC Acadia | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Alternator Part Number: 13507127
$328.03 MSRP: $649.85
You Save: $321.82 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2023 GMC Acadia | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS

GMC Acadia Alternator

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The Alternator in a GMC Acadia is a critical automotive component that provides charging for the vehicle's battery and drives power for all the electric devices when the car is running. The alternator is situated just in front of the engine and supplies electrical energy converted from the mechanical energy of the engine to certain parts of the car like the battery. Thus, using a rotating magnetic field with a stationary armature, the alternator produces the alternating current to recharge the battery and supply electricity to the car's electrical system. Since there is a measure of control in voltage that is supplied to ensure that the battery is not over charged or under charged, the alternator is so crucial in power supply of the electrical of the car. For those who have more electrical loads from parts, or require more amps than the stock alternator can supply, there are high output alternators that will satisfy the need without harming the charging system of a car.

GMC Acadia Alternator Parts Questions & Experts Answers

Alternator
23279588
Q: How to replace the alternator on GMC Acadia?
A:
To change the Alternator, disconnect the negative Battery Cable and the Drive Belt should be removed as well. Reposition the battery positive junction block cable boot , and remove the battery positive junction block cable from generator nut , then battery positive junction block cable terminal from the generator stud. Now disconnect the engine wiring harness electrical connector from the generator, and take off the power steering reservoir inlet hose clip from the power steering fluid reservoir hose clip bracket. Loct ite the idler pulley bolt and slide the pulley out as far as possible before gen nuts. Next, remove the air conditioning (A/C) compressor/evaporator hose bracket from the left generator stud, and the power steering fluid reservoir hose clip bracket from the right generator stud. Take out the generator and idler pulley from the vehicle, then separate the idler pulley from the generator. Attach the idler pulley on the generator, mount it on a vehicle. Secure the generator to the studs, and attach the power steering hose fluid reservoir clip bracket to the left generator stud and the a/c compressor/evaporator hose clamp bracket to the right generator stud. Fasten generator nuts finger tight and idler pulley bolt also finger tight. The specified generator bolt/nuts are tightened in a sequence as follows; idler pulley bolt, left nut and right nut, to 50n.m (37 lb ft). Reattach the power steering reservoir inlet hose clip to the power steering fluid reservoir hose clip bracket and plug the engine wiring harness electrical connector into the generator. Connect the battery positive junction block cable terminal to the generator stud and tighten the battery positive junction block cableugo the generator nut 22 n.m (16 lb ft). Replace the battery positive junction block cable boot over the stud and on to reinstall the Drive Belt, and at last complete reconnect with the negative Battery Cable.