2004 GMC Envoy Emission Control Parts
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Mahle®EGR Valve GasketGMC Envoy 2004, EGR Valve Gasket by Mahle®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...Made with precision and quality in mindDesigned to meet your specific needs$1.68 - $4.60 - Fel-Pro®EGR Valve O-RingGMC Envoy 2004, EGR Valve O-Ring by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet specific...Direct OEM replacement for a proper fitEnsures reliable sealing performance$1.50 - $4.30
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter and Pipe AssemblyGMC Envoy 2004, Ultra™ Catalytic Converter and Pipe Assembly by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Walker is an OE supplier to many major nameplate...$266.11 - $303.88
- AP Exhaust®Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy 2004, Catalytic Converter and Pipe Assembly by AP Exhaust®. Converter Configuration: Direct Fit. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this...$301.05 - $818.27
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic ConverterGMC Envoy 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet...$222.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic ConverterGMC Envoy XL 5.3L with LEV Standard / LEV1 Standard 2004, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic...$554.00
- MagnaFlow®OEM Grade Universal Fit Oval Body Catalytic ConverterGMC Envoy 2004, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet...$231.00
- CATCO®Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy XL / Envoy XUV with California Emission / with Federal Emission 2004, Catalytic Converter and Pipe Assembly by CATCO®. Converter Configuration: Direct Fit. Designed and manufactured with innovative fabrication methods,...$427.97 - $985.58
- Walker®CalCat™ Universal Fit Catalytic ConverterGMC Envoy 5.3L Engine Family # 4GMXT05.3170 2004, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 13.25". Specifically...$419.59 - $1,259.99
- MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterGMC Envoy 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter will directly...$384.00 - $797.00
- MagnaFlow®OBDII Direct Fit Catalytic ConverterGMC Envoy 2004, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter will directly replace the factory unit,...$1,516.00 - $2,851.00
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy 2004, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once...$288.64 - $722.85
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterGMC Envoy 2004, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter is part of the...$404.00 - $837.00
- iD Select®ECO II Universal Fit Oval Body Catalytic ConverterGMC Envoy XL 5.3L 2004, ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...$124.41Save: 10%$111.97
- iD Select®ECO II Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy 2004, ECO II Catalytic Converter and Pipe Assembly by iD Select®. Converter Configuration: Direct Fit. Location: Undercar. With 1 O2 Sensor Port. Swap out your worn-out or malfunctioning part with this top-notch exhaust...$302.49 - $340.12Save: 10%$272.24 - $306.11
- CATCO®Direct Fit Catalytic ConverterGMC Envoy with California Emission / with Federal Emission 2004, Catalytic Converter by CATCO®. Converter Configuration: Direct Fit. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced...$344.52
- CATCO®OBDII Universal Fit Round Body Catalytic ConverterGMC Envoy with California Emission / with Federal Emission 2004, OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Designed and manufactured with...$172.60 - $173.95
- Walker®Ultra™ Universal Fit Round Body Catalytic ConverterGMC Envoy 2004, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 11.5"....$155.88
- AP Exhaust®608 Series Universal Fit Round Body Catalytic ConverterGMC Envoy 2004, 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With 1 Passenger Side O2 Sensor Port. Catalytic Inlet Diameter: 2.5"....$153.62
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterGMC Envoy with California Emission / with Federal Emission 2004, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2...$279.65 - $644.78
- Eastern Catalytic®ECO II Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy 2004, ECO II Catalytic Converter and Pipe Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 1 O2 Sensor Port. If you need to replace your failed or damaged catalytic converter, this...$302.15 - $306.95
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterGMC Envoy 2004, Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5"....$157.06 - $165.47
- DEC®Standard Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy XL 5.3L 2004, Standard Catalytic Converter and Pipe Assembly by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again....$969.69
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...$12.39 - $15.76
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$9.61 - $11.46
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$111.92 - $330.87
- Torxe™Universal Fit Catalytic ConverterUniversal Catalytic Converter by Torxe™. Converter Configuration: Universal Fit. Catalytic Inlet Diameter: 2". Universal Fit Catalytic Converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the...$108.00 - $175.00
Shop By Service Type
- Oxygen Sensor Replacement
- Air Pump Check Valve Replacement
- Evaporation Vent Solenoid Replacement
- Positive Crankcase Ventilation (PCV) Valve Hose Replacement
- Canister Purge Solenoid Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Fuel Evaporative Canister Replacement
- Air Pump Check and Diverter Valve Replacement
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2004 GMC Envoy Models
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