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2003 GMC Sierra 3500

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ACDelco 12T121D Engine Coolant Thermostat
for 2003 GMC Sierra 3500 6.0L V8 Gas OHV

ACDelco 12T121D Engine Coolant Thermostat - 2003 GMC Sierra 3500

ACDelco
Brand:ACDelco
Part Number: 12T121D
UPC: 00707773320105
Weight: 0.17 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the ACDelco 12T121D Engine Coolant Thermostat for your 2003 GMC Sierra 3500. Buy now and secure your purchase online!

ACDelco Professional Engine Coolant Thermostats control the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature, and are a high quality replacement for many vehicles on the road today. These engine coolant thermostats are manufactured to meet your expectations for fit, form, and function. WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating temperature
  • Manufactured to meet expectations for fit, form, and function
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • – Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating

Specifications:

Height:
3.2 in.
Length:
3.5 in.
Programming Required:
NO
Seal Type:
Gasket
Weight:
.17 lb
Width:
3.2 in.

Manufacturer Warranty:

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

ACDelco 12T121D Engine Coolant Thermostat compatibility with your 2003 GMC Sierra 3500...

Last Updated: 07/22/2021

Years Vehicle Per Vehicle Fit NotesFitment Notes

2003

 

2002

 

2001

 

2003

 

2002

 

2001

 
GMC Sierra 3500

6.0L V8 Gas OHV
1
 
Professional
Temperature 187F
Includes seal
w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only.
OEM Recommended Temp
Standard
 

GMC Sierra 3500



6.0L V8 Gas OHV Professional
Temperature 187F
Includes seal
w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only.
OEM Recommended Temp
Standard

1 Per Vehicle

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