1999 GMC W4500 Forward Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 1999 GMC W4500 Forwards

Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.70789)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$2.99
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
See More

Dorman – Help – EGR Clean Screen Gasket Assortment (Part No.47007)

EGR Clean Screen Gasket Assortment

from

$8.99
This EGR line gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this EGR line gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore part functionality after the original gasket fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Edelbrock – Pro-Flo 4 EFI 4150-Style Kit No. 35780 For Chevy Small-Block with Vortec/E-Tec Heads (Part No.35780)

Pro-Flo 4 EFI 4150-Style Kit No. 35780 For Chevy Small-Block with Vortec/E-Tec Heads

from

$2500.99
The Edelbrock Pro-Flo 4 EFI Kit No. 35780 for Small-Block Chevy engines with Vortec/E-Tec cylinder heads is a fully sequential multi-port injection system designed with a fuel injector strategically positioned in each runner of the intake manifold to deliver the best fuel atomization and most even distribution to each cylinder. This system features the high-performance Victor-style single-plane intake manifold that comes preassembled with high-flow injectors, fuel rails and 4150-flange throttle body. All supporting sensors are included along with wire harnesses and ECU. The Victor manifold is designed with a larger cross-sectional area in the plenum and larger runners for high-horsepower and/or large cubic-inch applications. The manifold is also 0.75 inch taller than the standard LS3 version to promote smoother airflow into the rectangular-port heads. This kit uses 29 lb/hr injectors and is rated for 450 horsepower at 58 PSI of fuel pressure. Calibration of the Pro-Flo 4 is a simple process with a Setup Wizard providing guidance through the E-Tuner application’s initial programming. Once provided with basic information such as type of engine, cubic inches, firing order, and cam profile, the E-Tuner App then selects the most appropriate base calibration. Once the base calibration is set, the self-learning E-Tuner App takes over to continually maximize the fuel map for your specific engine configuration, even compensating for changes in altitude and weather. The E-Tuner App provides more advanced tuning options that allow precise control over cold starts and acceleration while retaining the simplicity that Pro-Flo systems are known for. The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.

Product Features:
  • High-performance Victor-style single-plane intake manifold that comes preassembled with high-flow injectors, fuel rails and 4150-flange throttle body.
  • All supporting sensors are included along with wire harnesses and ECU.
  • The Victor manifold is designed with a larger cross-sectional area in the plenum and larger runners for high-horsepower and/or large cubic-inch applications.
  • The manifold is also 0.75 inch taller than the standard LS3 version to promote smoother airflow into the rectangular-port heads.
  • This kit uses 29 lb/hr injectors and is rated for 450 horsepower at 58 PSI of fuel pressure.
  • Calibration of the Pro-Flo 4 is a simple process with a Setup Wizard providing guidance through the E-Tuner application’s initial programming.
  • Once provided with basic information such as type of engine, cubic inches, firing order, and cam profile, the E-Tuner App then selects the most appropriate base calibration.
  • Once the base calibration is set, the self-learning E-Tuner App takes over to continually maximize the fuel map for your specific engine configuration, even compensating for changes in altitude and weather.
  • The E-Tuner App provides more advanced tuning options that allow precise control over cold starts and acceleration while retaining the simplicity that Pro-Flo systems are known for.
  • The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.
See More

Dorman – Help – Fuel Injector O-Ring Seal Kit (Part No.90000)

Fuel Injector O-Ring Seal Kit

from

$21.29
The components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles. They are engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged.

Product Features:
  • Direct replacements – the components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles
  • Ideal solution – engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Upgrade your 1999 GMC W4500 Forward with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1999 GMC W4500 Forward, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your W4500 Forward functioning at its best. At Advance Auto Parts, we offer a wide selection of 5 Fuel and Emissions Systems for the 1999 GMC W4500 Forward, designed to meet your needs without breaking the bank. From Exhaust Gas Recirculation (EGR) Part replacements to Fuel Injectors 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 1999 GMC W4500 Forward at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $2.99 to $2,878.99, with an average price of $1,082.65. Our 5 Fuel and Emissions Systems in stock come from 3 trusted brands, so you’re sure to find the right part for your 1999 GMC W4500 Forward 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 1999 GMC W4500 Forward, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like FELPRO Dorman, and more. FELPRO Fuel and Emissions Systems start at just $2.99 and boast an impressive 4.6 stars average rating from customers. With 9 customer reviews and counting, our 1999 GMC W4500 Forward 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 1999 GMC W4500 Forward is always ready to roll. We’re committed to providing you with everything you need to keep your W4500 Forward in top shape, all in one place. Start shopping confidently below for your 1999 GMC W4500 Forward!

Best-Selling Exhaust Gas Recirculation (EGR) Parts for 1999 GMC W4500 Forwards

Enhance the driving experience in your GMC with 2 quality Exhaust Gas Recirculation (EGR) Part components, starting at $2.99.

Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.70789)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$2.99
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
See More

Dorman – Help – EGR Clean Screen Gasket Assortment (Part No.47007)

EGR Clean Screen Gasket Assortment

from

$8.99
This EGR line gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this EGR line gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore part functionality after the original gasket fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Most Popular 1999 GMC W4500 Forward Fuel Injectors

Customize your GMC with 3 Fuel Injectors products like Fuel Injector O-Ring Kits and Fuel Injection System, all priced under $2,878.99.

Dorman – Help – Fuel Injector O-Ring Seal Kit (Part No.90000)

Fuel Injector O-Ring Seal Kit

from

$21.29
The components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles. They are engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged.

Product Features:
  • Direct replacements – the components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles
  • Ideal solution – engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Edelbrock – Pro-Flo 4 EFI XT-Style Kit No. 35820 For Chevy Small-Block with Vortec/E-Tec Cyl Hds (Part No.35820)

Pro-Flo 4 EFI XT-Style Kit No. 35820 For Chevy Small-Block with Vortec/E-Tec Cyl Hds

from

$2878.99
The Edelbrock Pro-Flo 4 XT EFI Kit No. 35820 for 1986 & Earlier Small-Block Chevy engines with Vortec/E-Tec Cylinder heads has the latest technology. The EFI system comes complete with a Pro-Flo XT intake manifold and 29 Lb/Hr injectors capable of 450 HP with 58 p.s.i. fuel pressure. Also included is a plug and play single connection distributor designed to work specifically with Pro-Flo 4 and a made in the USA high-quality harness with clearly labeled connections for a hassle-free installation. The new Pro-Flo 4 EFI systems feature an all-new ECU with a faster processor, a water proof design and is half the depth of the previous ECU. It also has an upgraded Bluetooth chip that is faster, more reliable and will not drop connection. We’ve added more features for the advanced tuner giving you control over air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, Rev limiter while retaining the simplicity Pro-Flo is known for. The key to the system is our exclusive E-Tuner 4 app with dyno developed base calibrations. The E-Tuner 4 app uses a Bluetooth wireless connection to communicate with the ECU’s self-learning capability to continually adjust the calibration to get the maximize performance. E-Tuner 4 features a simple and easy to use setup wizard to help you get started as well as multiple dash displays so you can monitor your engines vitals. The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.
See More

Edelbrock – Pro-Flo 4 EFI 4150-Style Kit No. 35780 For Chevy Small-Block with Vortec/E-Tec Heads (Part No.35780)

Pro-Flo 4 EFI 4150-Style Kit No. 35780 For Chevy Small-Block with Vortec/E-Tec Heads

from

$2500.99
The Edelbrock Pro-Flo 4 EFI Kit No. 35780 for Small-Block Chevy engines with Vortec/E-Tec cylinder heads is a fully sequential multi-port injection system designed with a fuel injector strategically positioned in each runner of the intake manifold to deliver the best fuel atomization and most even distribution to each cylinder. This system features the high-performance Victor-style single-plane intake manifold that comes preassembled with high-flow injectors, fuel rails and 4150-flange throttle body. All supporting sensors are included along with wire harnesses and ECU. The Victor manifold is designed with a larger cross-sectional area in the plenum and larger runners for high-horsepower and/or large cubic-inch applications. The manifold is also 0.75 inch taller than the standard LS3 version to promote smoother airflow into the rectangular-port heads. This kit uses 29 lb/hr injectors and is rated for 450 horsepower at 58 PSI of fuel pressure. Calibration of the Pro-Flo 4 is a simple process with a Setup Wizard providing guidance through the E-Tuner application’s initial programming. Once provided with basic information such as type of engine, cubic inches, firing order, and cam profile, the E-Tuner App then selects the most appropriate base calibration. Once the base calibration is set, the self-learning E-Tuner App takes over to continually maximize the fuel map for your specific engine configuration, even compensating for changes in altitude and weather. The E-Tuner App provides more advanced tuning options that allow precise control over cold starts and acceleration while retaining the simplicity that Pro-Flo systems are known for. The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.

Product Features:
  • High-performance Victor-style single-plane intake manifold that comes preassembled with high-flow injectors, fuel rails and 4150-flange throttle body.
  • All supporting sensors are included along with wire harnesses and ECU.
  • The Victor manifold is designed with a larger cross-sectional area in the plenum and larger runners for high-horsepower and/or large cubic-inch applications.
  • The manifold is also 0.75 inch taller than the standard LS3 version to promote smoother airflow into the rectangular-port heads.
  • This kit uses 29 lb/hr injectors and is rated for 450 horsepower at 58 PSI of fuel pressure.
  • Calibration of the Pro-Flo 4 is a simple process with a Setup Wizard providing guidance through the E-Tuner application’s initial programming.
  • Once provided with basic information such as type of engine, cubic inches, firing order, and cam profile, the E-Tuner App then selects the most appropriate base calibration.
  • Once the base calibration is set, the self-learning E-Tuner App takes over to continually maximize the fuel map for your specific engine configuration, even compensating for changes in altitude and weather.
  • The E-Tuner App provides more advanced tuning options that allow precise control over cold starts and acceleration while retaining the simplicity that Pro-Flo systems are known for.
  • The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.
See More

Top-Rated Fuel and Emissions Systems Brands For Your 1999 GMC W4500 Forward

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 1999 GMC W4500 Forwards. Below you’ll find some of our best rated Fuel and Emissions Systems from FELPRO and Dorman, and more. Fuel and Emissions Systems from these brands that fit a 1999 W4500 Forward start at just $2.99 and are rated as high as 4.6 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 1999 GMC W4500 Forward Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1999 GMC W4500 Forward, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Fuel and Emissions Systems, specifically designed for the 1999 GMC W4500 Forward. With over 1 FELPRO 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 $2.99. Plus, with over 5 customer reviews and an average rating of 4.6 stars, you can trust that our FELPRO 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.
Exhaust Gas Recirculation (EGR) Valve Gasket
from $2.99
(5)
Exhaust Gas Recirculation (EGR) Valve Gasket
“It’s a gasket. Quality is good and it did the job. Price is right..”

Popular Dorman 1999 GMC W4500 Forward Fuel and Emissions Systems

Dorman auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 1999 GMC W4500 Forward owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 1999 W4500 Forward, Advance Auto Parts carries a full inventory of 1 Dorman Fuel and Emissions Systems. Plus you will be keeping your GMC in peak condition while saving money because prices on these Dorman Fuel and Emissions Systems range up to $21.29, plus, with more than 4 customer reviews and an impressive 4.2 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
Fuel Injector O-Ring Seal Kit
from $21.29
(4)
Fuel Injector O-Ring Seal Kit
“Only needed the o rings for the fuel lines but still bought the whole kit incase I needed it. O rings were same color as factory, so it made it easy t”

FAQs for 1999 GMC W4500 Forward Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 1999 GMC W4500 Forwards?

Out of 5 Fuel and Emissions Systems that fit 1999 GMC W4500 Forwards, the following parts are the top sellers:

What’s the price range for 1999 GMC W4500 Forward Fuel and Emissions Systems?

Fuel and Emissions System prices for the 1999 GMC W4500 Forward start at $2.99 and go up to $2,878.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 1999 GMC W4500 Forward?

The average price for Fuel and Emissions Systems for the 1999 GMC W4500 Forward is $1,082.65. 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 GMC W4500 Forward model years?

Yes, we currently carry Fuel and Emissions Systems for 9 model years of GMC W4500 Forwards between 1998 and 2009. Fuel and Emissions Systems are bought most frequently for the following model years: 2009, 2008, 2007, 2006, 2005, 2003, 2002, 2001, and 2000.

What are the cheapest Fuel and Emissions Systems for my 1999 GMC W4500 Forward?

The cheapest 1999 GMC W4500 Forward Fuel and Emissions Systems we carry in stock are:

What are the top-rated Fuel and Emissions Systems that fit the 1999 GMC W4500 Forward?

Out of 9 reviews by customers, our 1999 GMC W4500 Forward Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 1999 GMC W4500 Forward and their top-rated products:

What types of Fuel and Emissions Systems do you sell for my 1999 GMC W4500 Forward?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 1999 GMC W4500 Forward:

Can I get help with 1999 GMC W4500 Forward 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 GMC Fuel and Emissions Systems and more.

What is your return policy for GMC W4500 Forward Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new GMC W4500 Forward 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.