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Replacement and OEM Parts for 2003 GMC Sierra 1500 Catalytic Converter

2003 GMC Sierra 1500 Catalytic Converter

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2003 GMC Sierra 1500
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Catalytic Converters
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  • OEM 2003 GMC Sierra 1500 Converter & Pipe Diagram - 10395214
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Converter & Pipe

    PartNumber: 10395214
    OEM 2003 GMC Sierra 1500 Converter & Pipe - 10395214
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 51.8 x 20.2 x 15.2 inches
    • Item Weight: 20.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420109
    • Part Description: 2003 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Denali, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
    $1230.69 MSRP: $1843.58
    You Save: $612.89 (34%)
  • MagnaFlow Direct Fit Catalytic Converter for 2003 GMC Sierra 1500 - 4451419

    MagnaFlow® Direct Fit Catalytic Converter for 2003 GMC Sierra 1500

    PartNumber: 4451419
    Product Specifications
    • Notes: CARB Executive Order D-193-136;Engine Family Number 3GMXT05.3183;Engine Family Number 3GMXT04.3184;Engine Family Number 3GMXT05.3184;Certification Level : LEV1 LEV
    • Body Type: Spun
    • Clamp Included: Yes
    • Color/Finish: Stainless Steel
    • Material: Stainless Steel
    • Mounting Hardware Included: Yes
    • Series: California
    • Title: California Direct-Fit
    • Type: Direct-Fit
    • UPC: 888563104157
    • Part Description: 2003 GMC Sierra 1500 Direct Fit Catalytic Converter
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
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    $2201.00
  • OEM 2003 GMC Sierra 1500 Converter & Pipe Diagram - 10395213
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Converter & Pipe

    PartNumber: 10395213
    OEM 2003 GMC Sierra 1500 Converter & Pipe - 10395213
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 40.2 x 11.3 x 7.1 inches
    • Item Weight: 17.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420124
    • Part Description: 2003 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Denali, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
    $946.54 MSRP: $1415.00
    You Save: $468.46 (34%)
  • Davico Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500 - 18010

    Davico® Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500

    PartNumber: 18010
    Product Specifications
    • Notes: Not legal for use in Calif; Illegal for installation in NY on vehicles equipped w/Calif emission systems; This part is available split & must be welded or clamped together, order left & right Assy
    • Catalytic Converter Body Height: 17.5"
    • Catalytic Converter Overall Length: 45.5"
    • Catalytic Converter Width: 28.5"
    • Converter Configuration: Direct Fit
    • Position: Front
    • Part Description: 2003 GMC Sierra 1500 Direct Fit Catalytic Converter and Pipe Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    Show More
    $388.15
  • Davico Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500 - 180101

    Davico® Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500

    PartNumber: 180101
    Product Specifications
    • Notes: Not legal for use in Calif; Illegal for installation in NY on vehicles equipped w/Calif emission systems; OE system is a welded Assy, left & right Assy Reqd for full replacement.
    • Height: 10 in.
    • Inlet 1 Gsk.: EG24332
    • Inlet 1 Type: 3 Bolt Fixed Flange
    • Large Pkg. Fee: No
    • Number of O2 Sensors: 2
    • Outlet 1 Gsk.: Not Required
    • Outlet 1 Type: Slide On Connection
    • Over All Length: 35.5 in.
    • UPC: 841809112590
    • Use Davico Decarbonizing Induction Kit 1540ea: Yes
    • Width: 27 in.
    • Part Description: 2003 GMC Sierra 1500 Direct Fit Catalytic Converter and Pipe Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    Show More
  • MagnaFlow Universal Catalytic Converter - 2.50in. for 2003 GMC Sierra 1500 - 4451306

    MagnaFlow® Universal Catalytic Converter - 2.50in. for 2003 GMC Sierra 1500

    PartNumber: 4451306
    Product Specifications
    • Notes: CARB Executive Order D-193-136;Engine Family Number 3GMXT05.3183;Engine Family Number 3GMXT04.3184;Engine Family Number 3GMXT05.3184;Certification Level : LEV1 LEV; OE Spec; Cutting & Welding Reqd During Installation
    • Air Tube Adaptable: No
    • Body Height: 4
    • Body Length: 13
    • Body Shape: Round
    • Body Type: Spun
    • Body Width: 4
    • Finish: Stainless Steel
    • Heat Shield Attached: No
    • Inlet Attachment: Weld-On
    • Inlet Diameter: 2.5
    • Inlet Orientation: Straight
    • Inlet Quantity: 1
    • Material: Stainless Steel
    • Outlet Attachment: Weld-On
    • Outlet Diameter: 2.5
    • Outlet Orientation: Straight
    • Outlet Quantity: 1
    • Overall Length: 13
    • Sensor Port Count: 0
    • Series: California
    • Substrate Material: Ceramic
    • Title: California Universal
    • UPC: 888563103938
    • Part Description: 2003 GMC Sierra 1500 Universal Catalytic Converter - 2.50in.
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    Show More
  • OEM 2003 GMC Sierra 1500 3-Way Catalytic Convertor Assembly (W/ Exhaust Manifold Pipe) Diagram - 19206638
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 3-Way Catalytic Convertor Assembly (W/ Exhaust Manifold Pipe)

    PartNumber: 19206638
    OEM 2003 GMC Sierra 1500 3-Way Catalytic Convertor Assembly (W/ Exhaust Manifold Pipe) - 19206638
    Product Specifications
    • Other Names: Catalytic Converter
    • Item Dimensions: 47.9 x 32.9 x 13.5 inches
    • Item Weight: 34.20 Pounds
    • Replaced by: 19418928
    • Part Description: 2003 GMC Sierra 1500 3-Way Catalytic Convertor Assembly (W/ Exhaust Manifold Pipe)
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L ELECTRIC/GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
  • Davico Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500 - 180102

    Davico® Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500

    PartNumber: 180102
    Product Specifications
    • Notes: Not legal for use in Calif; Illegal for installation in NY on vehicles equipped w/Calif emission systems; OE system is a welded Assy, left & right Assy Reqd for full replacement.
    • Height: 10 in.
    • Inlet 1 Gsk.: EG24330
    • Inlet 1 Type: 3 Bolt Loose Flange
    • Large Pkg. Fee: No
    • Number of O2 Sensors: 2
    • Outlet 1 Gsk.: Not Required
    • Outlet 1 Type: 2 Bolt Fixed Flange
    • Over All Length: 39 in.
    • UPC: 841809112606
    • Use Davico Decarbonizing Induction Kit 1540ea: Yes
    • Width: 9 in.
    • Part Description: 2003 GMC Sierra 1500 Direct Fit Catalytic Converter and Pipe Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    Show More
  • MagnaFlow Universal Catalytic Converter for 2003 GMC Sierra 1500 - 4451309

    MagnaFlow® Universal Catalytic Converter for 2003 GMC Sierra 1500

    PartNumber: 4451309
    Product Specifications
    • Notes: CARB Executive Order D-193-136;Engine Family Number 3GMXT06.0187;Certification Level : LEV1 LEV; OE Spec; Cutting & Welding Reqd During Installation
    • Air Tube Adaptable: No
    • Body Height: 4
    • Body Length: 12.75
    • Body Shape: Round
    • Body Type: Spun
    • Body Width: 4
    • Finish: Stainless Steel
    • Heat Shield Attached: No
    • Inlet Attachment: Weld-On
    • Inlet Diameter: 3
    • Inlet Orientation: Straight
    • Inlet Quantity: 1
    • Material: Stainless Steel
    • Outlet Attachment: Weld-On
    • Outlet Diameter: 3
    • Outlet Orientation: Straight
    • Outlet Quantity: 1
    • Overall Length: 12.75
    • Sensor Port Count: 0
    • Series: California
    • Substrate Material: Ceramic
    • Title: California Universal
    • UPC: 888563103945
    • Part Description: 2003 GMC Sierra 1500 Universal Catalytic Converter
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
  • OEM 2003 GMC Sierra 1500 Converter & Pipe Diagram - 15077751
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Converter & Pipe

    PartNumber: 15077751
    OEM 2003 GMC Sierra 1500 Converter & Pipe - 15077751
    Product Specifications
    • Notes: All Models; 6.0l; California; Left
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 63.6 x 27.8 x 15.8 inches
    • Item Weight: 30.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 1500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, C3, Denali, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • Davico Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500 - 48010

    Davico® Direct Fit Catalytic Converter and Pipe Assembly for 2003 GMC Sierra 1500

    PartNumber: 48010
    Product Specifications
    • Notes: Not legal for use in Calif; Illegal for installation in NY on vehicles equipped w/Calif emission systems; Dealer Alternative; This part is available split & must be welded or clamped together, order left & right Assy
    • Catalytic Converter Body Height: 17.5"
    • Catalytic Converter Overall Length: 45.5"
    • Catalytic Converter Width: 28.5"
    • Converter Configuration: Direct Fit
    • Position: Front
    • Part Description: 2003 GMC Sierra 1500 Direct Fit Catalytic Converter and Pipe Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    Show More
  • OEM 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P Diagram - 15199817
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

    PartNumber: 15199817
    OEM 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P - 15199817
    Product Specifications
    • Other Names: Catalytic Converter
    • Item Dimensions: 53.0 x 33.7 x 13.2 inches
    • Item Weight: 21.30 Pounds
    • Replaced by: 19420127
    • Part Description: 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • Davico OBDII Universal Fit Round Body Catalytic Converter for 2003 GMC Sierra 1500 - 841-250

    Davico® OBDII Universal Fit Round Body Catalytic Converter for 2003 GMC Sierra 1500

    PartNumber: 841-250
    Product Specifications
    • Notes: Illegal for installation in NY on vehicles equipped w/Calif emission systems; Universal Fit; Fed & Calif Emission systems; Not legal for use in Calif
    • Catalytic Converter Body Length: 9"
    • Catalytic Converter Body Shape: Round
    • Catalytic Converter Overall Length: 15"
    • Catalytic Inlet Diameter: 2.5"
    • Catalytic Outlet Diameter: 2.5"
    • Catalytic Series: OBDII
    • Converter Body Material: Aluminized Steel
    • Converter Configuration: Universal Fit
    • O2 Sensor Port: No
    • Rated: 5.9L - 6,875 Lbs. GVW
    • UPC: 841809129741
    • Part Description: 2003 GMC Sierra 1500 OBDII Universal Fit Round Body Catalytic Converter
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | SL | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | SLE | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | SLT | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | SL | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | SLE | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | SLT | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | Base | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | WT | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | Base | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | WT | 8 Cyl 5.3L
    Show More
  • OEM 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE)"KIT" Diagram - 19418928
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE)"KIT"

    PartNumber: 19418928
    OEM 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE)"KIT" - 19418928
    Product Specifications
    • Notes: 4.3 Liter Gas; 4.8 Liter Gas; 5.3 Liter Gas; All Models; 4.3l;All Models; 4.8l, 5.3l
    • Other Names: Catalytic Converter, Converter & Pipe
    • Fitment Type: Direct Replacement
    • Replaces: 15246489, 15052911, 15076459, 15756279, 10395212, 19206638, 15082124, 15076458, 15036169, 15756278
    • Part Description: 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE)"KIT"
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L ELECTRIC/GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
  • OEM 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P Diagram - 15077752
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

    PartNumber: 15077752
    OEM 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P - 15077752
    Product Specifications
    • Notes: All Models; 6.0l; California; Right
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 56.9 x 14.1 x 8.3 inches
    • Item Weight: 30.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 1500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, C3, Denali, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT" Diagram - 19420127
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"

    PartNumber: 19420127
    OEM 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT" - 19420127
    Product Specifications
    • Notes: All Models; 6.0l; Federal
    • Other Names: Catalytic Converter, Front Pipe
    • Fitment Type: Direct Replacement
    • Replaces: 15199817
    • Part Description: 2003 GMC Sierra 1500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L GAS