2004 GMC Envoy Emission Control Parts
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WVE®Secondary Air Injection Relay ConnectorGMC Envoy / Envoy XL / Envoy XUV 2004, Secondary Air Injection Relay Connector by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$53.69 - Standard®Secondary Air Injection Pump ConnectorGMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, Secondary Air Injection Pump Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...Made with precision and quality in mindDesigned to meet your specific needs$34.13
- TruParts®EGR Valve GasketGMC Envoy XL / Envoy XUV 5.3L 2004, EGR Valve Gasket by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest materials in compliance with...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$9.08 - $10.20
- Eastern Catalytic®ECO GM Direct Fit Y-Pipe Catalytic Converter AssemblyGMC Envoy XL / Envoy XUV 5.3L 2004, ECO GM Y-Pipe Catalytic Converter Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Center. Location: Undercar. With 4 O2 Sensor Ports. Catalytic Converter Overall Length:...$764.35
- BRExhaust®Direct Fit Catalytic Converter and Pipe AssemblyGMC Envoy with Federal Emission 2004, Catalytic Converter and Pipe Assembly by BRExhaust®. Converter Configuration: Direct Fit. With O2 Sensor Ports. If you’re in need of a replacement catalytic converter, you can’t do better than...$270.21
- ACAT Global®High Performance Universal Fit Catalytic ConverterGMC Envoy XL 5.3L 2004, High Performance Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". Catalytic Converter Overall...$226.95
- ACAT Global®Universal Fit Catalytic ConverterGMC Envoy 2004, Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". This product features the elaborate design that was...$164.95
- ReplacementDirect Fit Catalytic ConverterGMC Envoy 2004, Catalytic Converter by Replacement. Converter Configuration: Direct Fit. A vehicle's exhaust system is pivotal to both performance and eco-friendliness, silently managing engine noise and controlling emissions....Call for Pricing
- Edelbrock®Victor Series PCV Valve Cover BreatherVictor Series PCV Valve Cover Breather by Edelbrock®. These push-in style valve cover breathers contain a foam filter element which allows the engine to properly breathe and traps oil vapor and prevents engine compartment contamination....Made with precision and quality in mindDesigned to meet your specific needs$39.95 - $53.95
- GReddy®S-Type Breather Tank Replacement Seal CapS-Type Breather Tank Replacement Seal Cap by GReddy®. Designed originally for racing engines, today’s compact production engines can also benefit from the used of Breather Tank Replacement Seal Cap.Designed to deliver trouble-free, consistent performanceRight for your vehicle and racing lifestyle$9.50
- Peterson Fluid Systems®Vacuum RegulatorVacuum Regulator by Peterson Fluid Systems®. Adjustable vacuum regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be...All Aluminum construction for light weightCNC Machined$244.18
- Black Forest Industries®Secondary Air Injection Block Off PlateSecondary Air Injection Block Off Plate by Black Forest Industries®. 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....Eliminate clutter with these machined aluminum platesAn OEM metal gasket is included for proper sealing as well as stainless headcap hardware for a complete bolt on installation$32.99
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$160.09 - $162.91Save: 10%$144.08 - $146.63
- Walker®Ultra™ Universal Fit Large Oval Body Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. With O2 Sensor Port. Catalytic Converter Overall Length: 18". The Right converter,...$122.73 - $157.97
- iD Select®ECO GM Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Swap out your worn-out or...$219.10Save: 10%$197.19
- AP Exhaust®Super X Duty Universal Fit Large Oval Body Catalytic ConverterUniversal Super X Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$214.23
- Eastern Catalytic®ECO GM II Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 Angled O2 Sensor Port. Catalytic Converter Overall Length: 16". Whether your...$248.92
- Eastern Catalytic®ECO GM Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by...$248.27 - $248.92
- Eastern Catalytic®ECO II Universal Fit Large Round Body Catalytic ConverterUniversal ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Whether your catalytic...$145.33 - $173.20
- ACAT Global®High Performance Universal Fit Catalytic ConverterUniversal High Performance Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. This product features the elaborate design that was engineered with superior precision and refined to the last detail. Made from...$138.95 - $259.95
- ACAT Global®Universal Fit Catalytic ConverterUniversal Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. This product features the elaborate design that was engineered with superior precision and refined to the last detail. Made from reliable materials...$121.66 - $231.95
- World Source One®Secondary Air Injection PumpGMC Envoy 2004, Secondary Air Injection Pump by World Source One®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Made with precision and quality in mindDesigned to meet your specific needs$132.75
- BBK®Oil Separator KitGMC Envoy XL / Envoy XUV 5.3L 2004, Oil Separator Kit by BBK®. Take a look at these BBK Oil separator kits. The design of today's modern fuel injected engines engines sends oil vapor from the crankcase back thru the PCV system to the...Protects Your Intake and Combustion Chambers from Oil VaporCapacity with Removable Base for Easy Emptying$169.99
- Herko®Oxygen SensorGMC Envoy 2004, Oxygen Sensor by Herko®. Position: Upstream. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle installation and help restore proper fuel system functionality...Will help optimize your vehicle’s performance and fuel efficiencyBuilt using high-grade materials for ultimate quality and durability$23.51
- ReplacementOxygen Sensor SetGMC Envoy XL / Envoy XUV 5.3L 2004, Oxygen Sensor Set by Replacement. 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, this product by...Expertly crafted from premium materialsDesigned to match rigorous quality standards$21.47 - $43.23
- ACDelco®Genuine GM Parts™ Vapor Canister Purge Valve BracketGMC Envoy / Envoy XL / Envoy XUV 2004, Genuine GM Parts™ Vapor Canister Purge Valve Bracket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...$7.76Save: $1.16 (15%)$6.60
- ACDelco®GM Genuine Parts™ PCV Valve Hose ClampGMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, GM Genuine Parts™ PCV Valve Hose Clamp by ACDelco®. GM Genuine Parts Multi Purpose Clamps are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These...Helps secure various componentsHelps prevent leaks$8.67Save: $1.30 (15%)$7.37
- TruParts®Universal Fit Catalytic ConverterGMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, Catalytic Converter by TruParts®. Converter Configuration: Universal Fit. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition....$109.11 - $120.71
- Chevrolet Performance®Diesel Exhaust FluidDiesel Exhaust Fluid by Chevrolet Performance®. Sold individually. Diesel Exhaust Fluid (DEF) is a non-flammable fluid consisting of 2/3 purified water and 1/3 ammonia-based urea. DEF is used with diesel engine exhaust systems to reduce...High quality at an affordable priceExpertly made from premium materials$11.27
- Fast®Vapor Canister Purge FittingVapor Canister Purge Fitting by Fast®. 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...High quality at an affordable priceExpertly made from premium materials$12.95 - $18.95
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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