2004 Hummer H1 Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 2004 Hummer H1s

Bosch – Diesel Fuel Injector: Remanufactured (Part No.0445120042)

Diesel Fuel Injector: Remanufactured

from

$507.99
Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.End of line testing using the exact OE test specifications.Guaranteed to provide OE performance and meet all emission specifications.Continuous improvement, manufactured with the latest upgrades to components and specifications. Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, And Asian vehicles.

Product Features:
  • 100% of injectors are end of line tested using the exact OE test specifications and equipment
  • Manufactured with the latest OE updates, so they can often be superior to the parts they replace
  • Manufactured using all OE tools and processes
  • Guaranteed to provide OE performance
See More

Bosch – Diesel Fuel Injector: New (Part No.0432217276)

Diesel Fuel Injector: New

from

$50.99
Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.End of line testing using the exact OE test specifications.Guaranteed to provide OE performance and meet all emission specifications.Continuous improvement, manufactured with the latest upgrades to components and specifications. Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, And Asian vehicles.

Product Features:
  • Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.
  • End of line testing using the exact OE test specifications.
  • Guaranteed to provide OE performance and meet all emission specifications.
  • Continuous improvement, manufactured with the latest upgrades to components and specifications.
See More

Delphi – Fuel Injector (Part No.EX631047)

Fuel Injector

from

$494.99
Delphi knows OE technology and how to service diesel systems. For more than 60 years, we have partnered with 25 OEM’s to bring our OE diesel powertrain knowledge and expertise to the aftermarket. Delphi diesel systems operate at high performance to meet today’s tough emissions standards and are built to OE specifications for the fit, form, and function technicians expect. Trust Delphi for an unrivalled, cost-effective diesel program to help build your business.

Product Features:
  • 100% O Ring replacement
  • All Delphi injectors are tested utilizing OE methodologies
  • Delphi injectors are produced in a Delphi ISO 9001:2008 certified facility
  • No internal seal rings equals minimized leakage
  • Recessed fuel exit minimizing possible plugging
  • Reduced spray variation, accurate fuel spray pattern mean better emissions and cold start capabilities
  • Thermally isolates fuel from engine by drawing manifold heat away from the fuel rail eliminating engine hesitation due to vapor lock
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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

Cardone New – New Vacuum Pump (Part No.90-1018)

New Vacuum Pump

from

$187.99
CARDONE New Vacuum Pumps are backed by CARDONE Engineered Technology, which ensures that all CARDONE Select New Vacuum Pumps meet or exceed O.E. form, fit and function. CARDONE Technology is based on over 40 years of reverse-engineering expertise, where original design weaknesses are identified and corrected, resulting in premium-quality, brand-new parts you can rely on. All units adhere to strict S.A.E. specifications and are 100 percent tested to ensure reliable, long-lasting performance.

Product Features:
  • Units are tested 100 percent to ensure they are leak-free and meet vacuum performance standards.
  • Engineered to meet or exceed O.E.M.performance.
  • Designed for easy installation.
  • Guaranteed fit and function.
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Carquest Premium – Multi-Use Connector (Part No.PTA1019)

Multi-Use Connector

from

$34.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)

Fuel Cap Tester Adapter:

from

$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12410)

Fuel Cap Tester Adapter:

from

$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Victor Reinz – Fuel Injection Throttle Body Mounting Gasket (Part No.71-15924-00)

Fuel Injection Throttle Body Mounting Gasket

from

$19.49
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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MAHLE Original – Fuel Injection Throttle Body Mounting Gasket (Part No.G31906)

Fuel Injection Throttle Body Mounting Gasket

from

$12.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61746)

Fuel Injection Throttle Body Mounting Gasket

from

$15.29
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Felpro – Fuel Injection Plenum Gasket Set (Part No.MS 90176-1)

Fuel Injection Plenum Gasket Set

from

$10.49
Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES: Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES: Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE: Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED: Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR: Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
See More

NTK – Multi-Purpose Temperature Sensor (Part No.EF0008)

Multi-Purpose Temperature Sensor

from

$25.99
Building upon a foundation of premium full-line products established under NGK ignition and oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • Air Charge Temperature Sensors are designed to meet or exceed OE specifications in form, fit and function to ensure proper monitoring of air temperature entering the engine
  • NTK’s Engine Coolant Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper engine operating temperature.
See More

Motorad – Tethered Fuel Cap (Part No.MGC826T)

Tethered Fuel Cap

from

$18.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Come pre-assembled for quick and easy installation.
  • Several fastener options to work with any fuel cap compartment configuration
  • Fits vehicles orginally equipped with tether
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
See More

Carquest Premium – Locking Fuel Tank Cap (Part No.10596)

Locking Fuel Tank Cap

from

$17.49
Product Features:
  • Reduces air pollution with proper sealing and venting
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10826)

Non-Locking Fuel Tank Cap

from

$11.99
Product Features:
  • Independently tested for emission control
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Felpro – Fuel Pump Mounting Gasket (Part No.70150)

Fuel Pump Mounting Gasket

from

$2.79
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Upgrade your 2004 Hummer H1 with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 Hummer H1, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Hummer or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your H1 functioning at its best. At Advance Auto Parts, we offer a wide selection of 12 Fuel and Emissions Systems for the 2004 Hummer H1, designed to meet your needs without breaking the bank. From Fuel Injector replacements to Gas Caps upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2004 Hummer H1 at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $2.79 to $187.99, with an average price of $35.57. Our 12 Fuel and Emissions Systems in stock come from 7 trusted brands, so you’re sure to find the right part for your 2004 Hummer H1 without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2004 Hummer H1, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Carquest Premium, and more. Carquest Premium Fuel and Emissions Systems start at just $11.99 and boast an impressive 4.4 stars average rating from customers. With 3 customer reviews and counting, our 2004 Hummer H1 Fuel and Emissions Systems have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2004 Hummer H1 is always ready to roll. We’re committed to providing you with everything you need to keep your H1 in top shape, all in one place. Start shopping confidently below for your 2004 Hummer H1!

Best-Selling Fuel Injectors for 2004 Hummer H1s

Enhance the driving experience in your Hummer with 2 quality Fuel Injector components, starting at $10.49.

Felpro – Fuel Injection Plenum Gasket Set (Part No.MS 90176-1)

Fuel Injection Plenum Gasket Set

from

$10.49
Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES: Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES: Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE: Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED: Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR: Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
See More

Bosch – Diesel Fuel Injector: New (Part No.0432217276)

Diesel Fuel Injector: New

from

$50.99
Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.End of line testing using the exact OE test specifications.Guaranteed to provide OE performance and meet all emission specifications.Continuous improvement, manufactured with the latest upgrades to components and specifications. Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, And Asian vehicles.

Product Features:
  • Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.
  • End of line testing using the exact OE test specifications.
  • Guaranteed to provide OE performance and meet all emission specifications.
  • Continuous improvement, manufactured with the latest upgrades to components and specifications.
See More

Most Popular 2004 Hummer H1 Gas Caps

Customize your Hummer with 3 Gas Caps products like Gas Caps, all priced under $18.79.

Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10826)

Non-Locking Fuel Tank Cap

from

$11.99
Product Features:
  • Independently tested for emission control
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Carquest Premium – Locking Fuel Tank Cap (Part No.10596)

Locking Fuel Tank Cap

from

$17.49
Product Features:
  • Reduces air pollution with proper sealing and venting
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
See More

Motorad – Tethered Fuel Cap (Part No.MGC826T)

Tethered Fuel Cap

from

$18.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Come pre-assembled for quick and easy installation.
  • Several fastener options to work with any fuel cap compartment configuration
  • Fits vehicles orginally equipped with tether
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
See More

Top Picks for 2004 Hummer H1 Fuel Tanks

Upgrade Hummer H1s with top-quality Fuel Tanks parts, including 1 OEM and aftermarket selections for your 2004 model.

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

In-Demand Air Flow Sensors for 2004 Hummer H1s

Select from 2 premium Air Flow Sensors parts for your 2004 Hummer H1, with prices ranging from $25.99 to $34.99.

NTK – Multi-Purpose Temperature Sensor (Part No.EF0008)

Multi-Purpose Temperature Sensor

from

$25.99
Building upon a foundation of premium full-line products established under NGK ignition and oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • Air Charge Temperature Sensors are designed to meet or exceed OE specifications in form, fit and function to ensure proper monitoring of air temperature entering the engine
  • NTK’s Engine Coolant Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper engine operating temperature.
See More

Carquest Premium – Multi-Use Connector (Part No.PTA1019)

Multi-Use Connector

from

$34.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Most Sold 2004 Hummer H1 Fuel Pumps

Explore our best-selling Hummer parts for the 2004 H1 among 2 OEM and aftermarket options starting from $17.79.

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)

Fuel Cap Tester Adapter:

from

$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12410)

Fuel Cap Tester Adapter:

from

$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Top-Rated Fuel and Emissions Systems Brands For Your 2004 Hummer H1

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2004 Hummer H1s. Below you’ll find some of our best rated Fuel and Emissions Systems from Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2004 H1 start at just $11.99 and are rated as high as 4.4 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular Carquest Premium 2004 Hummer H1 Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 Hummer H1, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Fuel and Emissions Systems, specifically designed for the 2004 Hummer H1. With over 1 Carquest Premium brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $11.99. Plus, with over 3 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Premium Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Non-Locking Fuel Tank Cap
from $11.99
(3)
Non-Locking Fuel Tank Cap
“What to say; it’s gas cap.”

FAQs for 2004 Hummer H1 Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2004 Hummer H1s?

Out of 12 Fuel and Emissions Systems that fit 2004 Hummer H1s, the following parts are the top sellers:

What’s the price range for 2004 Hummer H1 Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2004 Hummer H1 start at $2.79 and go up to $187.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2004 Hummer H1?

The average price for Fuel and Emissions Systems for the 2004 Hummer H1 is $35.57. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fuel and Emissions Systems for other Hummer H1 model years?

Yes, we currently carry Fuel and Emissions Systems for 2 model years of Hummer H1s between 2002 and 2006. Fuel and Emissions Systems are bought most frequently for the following model years: 2006, 2003, and 2002.

What are the cheapest Fuel and Emissions Systems for my 2004 Hummer H1?

The cheapest 2004 Hummer H1 Fuel and Emissions Systems we carry in stock are:

What types of Fuel and Emissions Systems do you sell for my 2004 Hummer H1?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2004 Hummer H1:

Can I get help with 2004 Hummer H1 Fuel and Emissions System orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Hummer Fuel and Emissions Systems and more.

What is your return policy for Hummer H1 Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Hummer H1 Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.