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2021 GMC Sierra 3500 HD

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ACDelco 84874680 Alternator
for 2021 GMC Sierra 3500 HD

ACDelco

 
Brand:ACDelco
Part Number: 84874680
UPC: 00193468693829
Weight: 14.33 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco 84874680 Alternator for your 2021 GMC Sierra 3500 HD. Buy now and secure your purchase online!

GM Genuine Parts Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Alternators provide power to the vehicle's electrical systems and charge the battery while the engine is running. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). 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
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

AC Service Tap:
NO
Amperage Rating:
120
Brushless:
No
Case Circumference:
5.12 in.
Decoupled Or Clutch Pulley:
YES
Distance Between Mounting ft:
6.65 in.
Drive End To Pulley 1st Groove Distance:
2.86 in.
External Fan Included:
No
External Regulator Included:
No
Fan Type:
Internal
Ground Type:
Negative
Height:
10.25 in.
Length:
13.88 in.
Mounting Type:
Front Mount
One Wire Capable:
Yes
Plug Clock Rear View Main Mounting Ear at 6 O Clock:
11
Pulley Belt Type:
Serpentine
Pulley Groove Quantity:
5
Pulley Included:
Yes
Pulley Outside Diameter:
2.57 in.
Regulator Type:
Internal
Rotation Direction:
Clockwise
Terminal Quantity:
2
Voltage:
12 Volts (Direct Current)
Weight:
14.33 lb
Width:
13.25 in.

Manufacturer Warranty:

24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com for more details.

ACDelco 84874680 Alternator compatibility with your 2021 GMC Sierra 3500 HD...

Last Updated: 02/04/2023

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
2 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Cab & Chassis
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Crew Cab Pickup
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Extended Cab Pickup
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L5P
8th VIN Digit: Y
Standard Cab Pickup
2 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
2 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Cab & Chassis
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Crew Cab Pickup
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Auxiliary
 
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 DUAL 170 AMP & 220 AMP GENERATOR(KHF)
Eng: L8T
8th VIN Digit: 7
Extended Cab Pickup
4 Doors

1 Per Vehicle

2023

 

2022

 

2021

 

2020

 

2023

 

2022

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Auxiliary
 
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 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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