ACDelco 84677779 Alternator
for 2023 GMC Sierra 3500 HD

ACDelco 84677779 Alternator - 2023 GMC Sierra 3500 HD Image 1

ACDelco 84677779 Alternator - 2023 GMC Sierra 3500 HD Image 2

ACDelco 84677779 Alternator - 2023 GMC Sierra 3500 HD Image 3

ACDelco 84677779 Alternator - 2023 GMC Sierra 3500 HD


Brand:	ACDelco
Part Number:	84677779
UPC:	00193468086898
Weight:	14.33 lbs
Condition:	New

Availability:	0 in Stock
	OUT OF STOCK

Product Information

Description:

Get the ACDelco 84677779 Alternator for your 2023 GMC Sierra 3500 HD. Buy now and secure your purchase online!

ACDelco GM Original Equipment Light Duty Alternators have components that are newly manufactured, and are GM-recommended replacement for your vehicle's original alternator. Alternators provide power to the vehicle's electrical systems and charge the battery while the engine is running. These original equipment alternators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

100% newly manufactured as an exact replacement for your GM vehicle's original alternator
Components are tested to meet original specification requirements for remarkable durability
GM-recommended replacement part for your GM vehicle's original factory component
Manufactured to GM OE specifications for fit, form, and function
Offering the quality, reliability, and durability of GM OE

Specifications:

AC Service Tap:

Amperage Rating:

170 Ampere

Brushless:

Decoupled Or Clutch Pulley:

Yes

External Fan Included:

External Regulator Included:

Fan Type:

Internal

Ground Type:

Negative

Height (in):

10.25 in

Length (in):

13.88 in

Mounting Type:

Front Mount

Plug Clock Rear View Main Mounting Ear at 6 O Clock:

Programming Required:

Pulley Belt Type:

Serpentine

Pulley Groove Quantity:

Pulley Included:

Yes

Pulley Outside Diameter (in):

2.57 in

Pulley Outside Diameter (mm):

65.2 mm

Regulator Type:

Internal

Rotation Direction:

Clockwise

Terminal Quantity:

Voltage:

12 VDC

Weight (lb):

14.33 lb

Width (in):

13.25 in

Features and Benefits:

– It is also important that all electrical connections are kept clean and firmly attached, which will make sure the battery is being properly charged by the alternator.
– There is a cooling fan in most alternators to keep it from overheating. Making sure that the fan is clean will help the fan and alternator run properly.

Specifications:

Country of Origin:

ACDelco 84677779 Alternator compatibility with your 2023 GMC Sierra 3500 HD...

Last Updated: 05/30/2023

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

2023

GMC Sierra 3500 HD

6.6L V8 Flex OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

1 Per Vehicle

2023

GMC Sierra 3500 HD

6.6L V8 Flex OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

1 Per Vehicle

2023

GMC Sierra 3500 HD

6.6L V8 Flex OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

1 Per Vehicle

2023

GMC Sierra 3500 HD

6.6L V8 Flex OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

1 Per Vehicle

2023

GMC Sierra 3500 HD

6.6L V8 Flex OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
2 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
4 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Crew Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Crew Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Extended Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Extended Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Standard Cab Pickup
2 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Standard Cab Pickup
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

GMC Sierra 3500 HD

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

GMC Sierra 3500 HD

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

GMC Sierra 3500 HD

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

1 Auxiliary

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

GMC Sierra 3500 HD

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

1 Per Vehicle

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2023 GMC Sierra 3500 HD

ACDelco 84677779 Alternatorfor 2023 GMC Sierra 3500 HD

Product Information

Description:

Features and Benefits:

Specifications:

Features and Benefits:

Specifications:

ACDelco 84677779 Alternator compatibility with your 2023 GMC Sierra 3500 HD...

2023

2023

GMC Sierra 3500 HD 6.6L V8 Flex OHV

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Cab & Chassis2 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Cab & Chassis2 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Flex OHV

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Cab & Chassis4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Cab & Chassis4 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Flex OHV

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Crew Cab Pickup4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Crew Cab Pickup4 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Flex OHV

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Extended Cab Pickup4 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Extended Cab Pickup4 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Flex OHV

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Standard Cab Pickup2 Doors

GMC Sierra 3500 HD

6.6L V8 Flex OHV Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L8T8th VIN Digit: 7Standard Cab Pickup2 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Diesel OHV Turbo

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCab & Chassis2 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCab & Chassis2 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Diesel OHV Turbo

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCab & Chassis4 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCab & Chassis4 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Diesel OHV Turbo

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCrew Cab Pickup4 Doors

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo Auxiliary GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YCrew Cab Pickup4 Doors 1 Per Vehicle

2023

2023

GMC Sierra 3500 HD 6.6L V8 Diesel OHV Turbo

1

Auxiliary

GM Original EquipmentDUAL 170 AMP & 220 AMP GENERATOR(KHF)Eng: L5P8th VIN Digit: YExtended Cab Pickup4 Doors

GMC Sierra 3500 HD

ACDelco 84677779 Alternator
for 2023 GMC Sierra 3500 HD

GMC Sierra 3500 HD

6.6L V8 Flex OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Flex OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Flex OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Flex OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Flex OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

6.6L V8 Flex OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Standard Cab Pickup
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
2 Doors

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
4 Doors

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Crew Cab Pickup
4 Doors

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Crew Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Extended Cab Pickup
4 Doors

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Extended Cab Pickup
4 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Standard Cab Pickup
2 Doors

6.6L V8 Diesel OHV Turbo

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Standard Cab Pickup
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Gas OHV

GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

6.6L V8 Gas OHV

Auxiliary GM Original Equipment
DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

1 Per Vehicle