Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands
Shopping for

2021 GMC Sierra 3500 HD

X
  2. Auto Parts
  3. Air and Fuel Delivery
  4. Fuel Injection System and Related Components
  5. Fuel Injection Throttle Body
  6. ACDelco 12678223 for 2021 GMC Sierra 3500 HD

ACDelco 12678223 Fuel Injection Throttle Body
for 2021 GMC Sierra 3500 HD 6.6L V8 Gas OHV

ACDelco 12678223 Fuel Injection Throttle Body - 2021 GMC Sierra 3500 HD

ACDelco
Brand:ACDelco
Part Number: 12678223
UPC: 00808709538912
Weight: 2.06 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco 12678223 Fuel Injection Throttle Body for your 2021 GMC Sierra 3500 HD. Buy now and secure your purchase online!

Specifications:

Bore Diameter:
3.54 in.
Fuel Injectors Included:
NO
Fuel System Grade:
OEM Grade
Fuel System Injection Type:
Multi-Port
Fuel System Type:
Gasoline Fuel Injection
Gasket Or Seal Included:
No
Height:
5.25 in.
Idle Air Control Motor Included:
YES
Inlet Diameter:
3.54 in.
Inlet Type:
Round
Length:
10.5 in.
Original Equipment Replacement:
Yes
Outlet Diameter:
3.43 in.
Outlet Type:
Round
Programming Required:
YES
Throttle Body Finish:
Natural
Throttle Body Material:
Aluminum
Throttle Body Spacer Included:
NO
Throttle Position Sensor Included:
YES
Venturi Quantity:
1
Weight:
2.06 lb
Width:
6.5 in.

Manufacturer Warranty:

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

ACDelco 12678223 Fuel Injection Throttle Body compatibility with your 2021 GMC Sierra 3500 HD...

Last Updated: 01/31/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

2021

 

2020

 

2021

 

2020

 
GMC Sierra 3500 HD

6.6L V8 Gas OHV
1
 
Eng: L8T
8th VIN Digit: 7
 

GMC Sierra 3500 HD



6.6L V8 Gas OHV Eng: L8T
8th VIN Digit: 7

1 Per Vehicle

Didn't find a match for your vehicle?

   See Other Choices



Customers who bought ACDelco 12678223 Fuel Injection Throttle Body also purchased

ACDelco 12626354 Engine Intake Manifold Gasket
ACDelco 12626354 Engine Intake Manifold Gasket
ACDelco 12639086 Fuel Injection Throttle Body Seal
ACDelco 12639086 Fuel Injection Throttle Body Seal
ACDelco 12639087 Engine Intake Manifold
ACDelco 12639087 Engine Intake Manifold