Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2021 GMC Sierra 3500 HD Oxygen Sensors & Components

2021 GMC Sierra 3500 HD Oxygen Sensors & Components

My Vehicle Change Vehicle
2021 GMC Sierra 3500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Engine & Drivetrain
  • Department
  • Part Type
  • Prices

4 products about 2021 GMC Sierra 3500 HD Oxygen Sensors & Components found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2021 GMC Sierra 3500 HD Lower Oxygen Sensor Diagram - 12670253
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Lower Oxygen Sensor

    PartNumber: 12670253
    OEM 2021 GMC Sierra 3500 HD Lower Oxygen Sensor - 12670253
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd; Gas; Rear
    • Location: Driver Side; Passenger Side
    • Other Names: Lower Oxygen Sensor, Oxygen Sensor
    • Item Dimensions: 0.2 x 1.7 x 1.2 inches
    • Item Weight: 7.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Lower Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $40.83 MSRP: $77.06
    You Save: $36.23 (48%)
  • OEM 2021 GMC Sierra 3500 HD SENSOR ASM-NOX (POSN 2) Diagram - 12708006
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD SENSOR ASM-NOX (POSN 2)

    PartNumber: 12708006
    OEM 2021 GMC Sierra 3500 HD SENSOR ASM-NOX (POSN 2) - 12708006
    Product Specifications
    • Notes: 6.6 Liter Diesel, Sensors
    • Other Names: Lower Nox Sensor
    • Fitment Type: Direct Replacement
    • Replaces: 12695882
    • Part Description: 2021 GMC Sierra 3500 HD SENSOR ASM-NOX (POSN 2)
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $170.28 MSRP: $321.30
    You Save: $151.02 (48%)
  • OEM 2021 GMC Sierra 3500 HD Upper Nox Sensor Diagram - 12708005
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Upper Nox Sensor

    PartNumber: 12708005
    OEM 2021 GMC Sierra 3500 HD Upper Nox Sensor - 12708005
    Product Specifications
    • Notes: 6.6 Liter Diesel, Sensors
    • Other Names: Upper Nox Sensor
    • Fitment Type: Direct Replacement
    • Replaces: 12695881
    • Part Description: 2021 GMC Sierra 3500 HD Upper Nox Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $164.34 MSRP: $310.10
    You Save: $145.76 (48%)
  • OEM 2021 GMC Sierra 3500 HD Upper Oxygen Sensor Diagram - 12679885
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Upper Oxygen Sensor

    PartNumber: 12679885
    OEM 2021 GMC Sierra 3500 HD Upper Oxygen Sensor - 12679885
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd; Gas; Front
    • Location: Driver Side; Passenger Side
    • Other Names: Oxygen Sensor, Upper Oxygen Sensor
    • Item Dimensions: 8.4 x 3.2 x 3.2 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Upper Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $44.74 MSRP: $81.00
    You Save: $36.26 (45%)