Catalytic Converter for 2003 GMC Sierra 2500 HD
Vehicle
2003 GMC Sierra 2500 HD
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- Back Door
- Back Panel
- Box Assembly
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Carrier & Components
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Doors
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
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- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor - Pick UP Box
- Frame & Components
- Front & Side Panels
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glass, Windows & Related Components
- Glove Box
- Grille & Components
- Hardware
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Labels
- Liftgate
- Lock & Hardware
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Side Body
- Sound System
- Sunroof
- Tail Gate
- Tailgate
- Tailgate & Midgate
- Tracks & Components
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Controls
- Daytime Running Lamp Components
- Daytime Running Lamps
- Diesel Controls
- Electrical Components
- Electrical Connectors
- Electrical Sockets
- Flasher Units, Fuses, & Circuit Breakers
- Flashers
- Fog Lamps
- Front Door
- Front Seat Belts
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Navigation System Components
- Park & Side Marker Lamps
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Senders
- Starter
- Starter & Related Components
- Steering Column
- Switches
- Switches, Solenoids & Actuators
- Wipers
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Auxiliary Heater & AC
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Heater
- Hoses & Pipes
- Motors, Core, Case & Related Components
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Door
- Back Panel
- Box Assembly
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Carrier & Components
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Doors
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor - Pick UP Box
- Frame & Components
- Front & Side Panels
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glass, Windows & Related Components
- Glove Box
- Grille & Components
- Hardware
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Labels
- Liftgate
- Lock & Hardware
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Side Body
- Sound System
- Sunroof
- Tail Gate
- Tailgate
- Tailgate & Midgate
- Tracks & Components
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Controls
- Daytime Running Lamp Components
- Daytime Running Lamps
- Diesel Controls
- Electrical Components
- Electrical Connectors
- Electrical Sockets
- Flasher Units, Fuses, & Circuit Breakers
- Flashers
- Fog Lamps
- Front Door
- Front Seat Belts
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Navigation System Components
- Park & Side Marker Lamps
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Senders
- Starter
- Starter & Related Components
- Steering Column
- Switches
- Switches, Solenoids & Actuators
- Wipers
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Auxiliary Heater & AC
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Heater
- Hoses & Pipes
- Motors, Core, Case & Related Components
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
Browse Categories
Select category
- Back Door
- Back Panel
- Box Assembly
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Carrier & Components
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Doors
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor - Pick UP Box
- Frame & Components
- Front & Side Panels
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glass, Windows & Related Components
- Glove Box
- Grille & Components
- Hardware
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Labels
- Liftgate
- Lock & Hardware
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Side Body
- Sound System
- Sunroof
- Tail Gate
- Tailgate
- Tailgate & Midgate
- Tracks & Components
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Controls
- Daytime Running Lamp Components
- Daytime Running Lamps
- Diesel Controls
- Electrical Components
- Electrical Connectors
- Electrical Sockets
- Flasher Units, Fuses, & Circuit Breakers
- Flashers
- Fog Lamps
- Front Door
- Front Seat Belts
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Navigation System Components
- Park & Side Marker Lamps
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Senders
- Starter
- Starter & Related Components
- Steering Column
- Switches
- Switches, Solenoids & Actuators
- Wipers
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Auxiliary Heater & AC
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Heater
- Hoses & Pipes
- Motors, Core, Case & Related Components
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Door
- Back Panel
- Box Assembly
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Carrier & Components
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Doors
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor - Pick UP Box
- Frame & Components
- Front & Side Panels
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glass, Windows & Related Components
- Glove Box
- Grille & Components
- Hardware
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Labels
- Liftgate
- Lock & Hardware
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Side Body
- Sound System
- Sunroof
- Tail Gate
- Tailgate
- Tailgate & Midgate
- Tracks & Components
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Controls
- Daytime Running Lamp Components
- Daytime Running Lamps
- Diesel Controls
- Electrical Components
- Electrical Connectors
- Electrical Sockets
- Flasher Units, Fuses, & Circuit Breakers
- Flashers
- Fog Lamps
- Front Door
- Front Seat Belts
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Navigation System Components
- Park & Side Marker Lamps
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Senders
- Starter
- Starter & Related Components
- Steering Column
- Switches
- Switches, Solenoids & Actuators
- Wipers
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Auxiliary Heater & AC
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Heater
- Hoses & Pipes
- Motors, Core, Case & Related Components
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
1
- Exhaust ManifoldGM5.3L gas. Manual trans. 5.3L, federal. 4.8L gas. 4.8L, federal. Express, savana. 6.0l. California. Lev. Right. 5.3L, all. Helps direct exhaust away from your vehicle's engine combustion chamber This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors (Unavailable)
- $139.93Exhaust ManifoldGMHelps direct exhaust away from your vehicle's engine combustion chamber This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
- $219.66Exhaust ManifoldGMExc.Calif. Exc.LEV Spec. Express, savana. 6.0l. Right. Ulev spec. Federal. Exc.Natural Gas Conversion. EEC 00 Emissions. Helps direct exhaust away from your vehicle's engine combustion chamber This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
4
- Catalytic ConverterGMSilverado, sierra. 6.0l. 6 1/2 box. Exc.Calif. Exc.LEV Spec. Incl.Exhaust Muffler. All. 3/4 ton. Crew cab. 153 wheelbase. With 9,200 gvwr. Federal. Has the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's exhaust system Helps guide exhaust to the exterior of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors (Unavailable)
- Catalytic ConverterGMHas the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's exhaust system Helps guide exhaust to the exterior of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors (Unavailable)
- Catalytic ConverterGMHas the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's exhaust system Helps guide exhaust to the exterior of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors (Unavailable)
- Catalytic ConverterGMHas the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's exhaust system Helps guide exhaust to the exterior of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors (Unavailable)
No.
Part # / Description / Price
Price
1
Passenger Side Exhaust Manifold 
GM
GM Positions: Right
Description: 5.3L gas. Manual trans. 5.3L, federal. 4.8L gas. 4.8L, federal. Express, savana. 6.0l. California. Lev. Right. 5.3L, all. Helps direct exhaust away from your vehicle's engine combustion chamber
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
1
Driver Side Exhaust Manifold GM
GM Positions: Left
Description: Helps direct exhaust away from your vehicle's engine combustion chamber
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $224.19
$139.93
MSRP $224.19
$139.93
1
Exhaust Manifold GM
GM Positions: Right
Description: Exc.Calif. Exc.LEV Spec. Express, savana. 6.0l. Right. Ulev spec. Federal. Exc.Natural Gas Conversion. EEC 00 Emissions. Helps direct exhaust away from your vehicle's engine combustion chamber
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $351.92
$219.66
MSRP $351.92
$219.66
2
Front Pipe GM
GM Positions: Right
Notes: PARTS: Order by engine equipment, transmission type, and vehicle series.
Description: Suburban, Yukon XL. 6.0l. Right. Crew cab. 134 wheelbase. Crew cab. 153 wheelbase. With tier 2 fed. emis.. 6.0L, all. 6.0L, federal. Without silverado, sierra. Escalade EXT. Calif.
3
Front Pipe 1 GM
GM Positions: Left
Notes: PARTS: Order by engine equipment, transmission type, and vehicle series.
MSRP $1,389.07
$908.45
MSRP $1,389.07
$908.45
3
Catalytic Converter 1 GM
GM Positions: Left
Description: Exc.LEV Spec. Incl.Front Exhaust Pipe. Calif. Ulev spec. Federal. Tier 2 Emissions.
4
Exhaust Muffler Assembly with 3-Way Catalytic Converter, Pipes, Flanges, Bushing, Hangers, Clamp, and Label 1 GM
GM Positions: Right
Description: Silverado, sierra. 6.0l. 6 1/2 box. Exc.Calif. Exc.LEV Spec. Incl.Exhaust Muffler. All. 3/4 ton. Crew cab. 153 wheelbase. With 9,200 gvwr. Federal. Has the necessary components to service your vehicle's exhaust muffler
Helps diminish the amount of noise emitted by your vehicle's exhaust system
Helps guide exhaust to the exterior of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
4
Exhaust Muffler Assembly with 3-Way Catalytic Converter, Pipes, Flanges, Bushing, Hangers, Clamp, and Label 1 GM
GM Positions: Right
Description: Has the necessary components to service your vehicle's exhaust muffler
Helps diminish the amount of noise emitted by your vehicle's exhaust system
Helps guide exhaust to the exterior of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
4
Exhaust Muffler Assembly with 3-Way Catalytic Converter, Pipes, Flanges, Bushing, Hangers, Clamp, and Label 1 GM
GM Positions: Right
Description: Has the necessary components to service your vehicle's exhaust muffler
Helps diminish the amount of noise emitted by your vehicle's exhaust system
Helps guide exhaust to the exterior of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
4
Exhaust Muffler Kit with Three-Way Catalytic Converter, Exhaust Pipe, and Tail Pipe 1 GM
GM Positions: Right
Description: Has the necessary components to service your vehicle's exhaust muffler
Helps diminish the amount of noise emitted by your vehicle's exhaust system
Helps guide exhaust to the exterior of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
6
Muffler & Pipe GM
GM Notes: PARTS: Order by engine equipment, transmission type, and vehicle series.
Description: 6.0L gas.
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.