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 ×
Replacement and OEM Parts for 2021 GMC Sierra 1500 Catalytic Converter

2021 GMC Sierra 1500 Catalytic Converter

My Vehicle Change Vehicle
2021 GMC Sierra 1500
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Catalytic Converters
  • Department
  • Prices

11 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM (Genuine) 2021 GMC Sierra 1500 Rear Hanger Gasket

    PartNumber: 22816982
    OEM 2021 GMC Sierra 1500 Rear Hanger Gasket - 22816982
    Product Specifications
    • Notes: Dual Exhaust
    • Item Dimensions: 5.4 x 4.1 x 0.2 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 13229873
    • Part Description: 2021 GMC Sierra 1500 Rear Hanger Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
    $6.98 MSRP: $10.52
    You Save: $3.54 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Catalytic Converter

    PartNumber: 84655074
    OEM 2021 GMC Sierra 1500 Catalytic Converter - 84655074
    Product Specifications
    • Other Names: Catalytic Converter
    • Item Dimensions: 37.5 x 31.1 x 12.3 inches
    • Item Weight: 31.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 86781749
    • Part Description: 2021 GMC Sierra 1500 Catalytic Converter
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $1320.73 MSRP: $1979.40
    You Save: $658.67 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe

    PartNumber: 19420299
    OEM 2021 GMC Sierra 1500 Converter & Pipe - 19420299
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe
    • Replaced by: 86781749
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $1320.73 MSRP: $1979.40
    You Save: $658.67 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe

    PartNumber: 84557807
    OEM 2021 GMC Sierra 1500 Converter & Pipe - 84557807
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe
    • Item Dimensions: 37.5 x 30.4 x 12.1 inches
    • Item Weight: 31.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 85542369
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $1905.19 MSRP: $2860.93
    You Save: $955.74 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe

    PartNumber: 12693374
    OEM 2021 GMC Sierra 1500 Converter & Pipe - 12693374
    Product Specifications
    • Notes: 2.7 Liter; Silverado, Sierra; 2.7l
    • Other Names: Catalytic Converter, Converter & Pipe
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | Base, Elevation, SLE | 4 Cyl 2.7 L GAS
    $699.88 MSRP: $1042.97
    You Save: $343.09 (33%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter Shield

    PartNumber: 12709334
    OEM 2021 GMC Sierra 1500 Converter Shield - 12709334
    Product Specifications
    • Fitment Type: Direct Replacement
    • Replaced by: 40009139
    • Part Description: 2021 GMC Sierra 1500 Converter Shield
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
    $835.64 MSRP: $1247.73
    You Save: $412.09 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Diesel Particulate Filter

    PartNumber: 40009139
    OEM 2021 GMC Sierra 1500 Diesel Particulate Filter - 40009139
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Catalytic Converter, Diesel Particulate Filter
    • Replaces: 12698485, 40009042, 12694479, 12696443, 12700216, 12709334
    • Part Description: 2021 GMC Sierra 1500 Diesel Particulate Filter
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
    $835.64 MSRP: $1247.73
    You Save: $412.09 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe Gasket

    PartNumber: 12687885
    OEM 2021 GMC Sierra 1500 Converter & Pipe Gasket - 12687885
    Product Specifications
    • Notes: 2.7 Liter
    • Other Names: Converter & Pipe Gasket, Converter Seal
    • Item Dimensions: 4.9 x 4.7 x 0.1 inches
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | Base, Elevation, SLE | 4 Cyl 2.7 L GAS
    $10.76 MSRP: $17.07
    You Save: $6.31 (37%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe Gasket

    PartNumber: 84763642
    OEM 2021 GMC Sierra 1500 Converter & Pipe Gasket - 84763642
    Product Specifications
    • Notes: Single Exhaust; Dual Exhaust
    • Other Names: Converter & Pipe Gasket
    • Fitment Type: Direct Replacement
    • Replaces: 84201691
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
    $1.97 MSRP: $2.95
    You Save: $0.98 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe

    PartNumber: 84655075
    OEM 2021 GMC Sierra 1500 Converter & Pipe - 84655075
    Product Specifications
    • Notes: Silverado, Sierra; 6.2l; Dual Exhaust, 6.2 Liter
    • Other Names: Catalytic Converter, Converter & Pipe
    • Item Dimensions: 42.8 x 27.6 x 12.6 inches
    • Item Weight: 8.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 84520355, 84557806
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Denali, SLT | 8 Cyl 6.2 L GAS
    $2081.77 MSRP: $3127.28
    You Save: $1045.51 (34%)
  • OEM (Genuine) 2021 GMC Sierra 1500 Converter & Pipe

    PartNumber: 84749005
    OEM 2021 GMC Sierra 1500 Converter & Pipe - 84749005
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe
    • Item Dimensions: 36.1 x 8.3 x 5.2 inches
    • Item Weight: 22.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 85521779
    • Part Description: 2021 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 1500 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
    $200.80 MSRP: $290.21
    You Save: $89.41 (31%)