1999 GMC W4500 Forward Fuel Injectors

Keep Your 1999 GMC W4500 Forward in Top Shape with Quality Fuel Injectors

Whether you’re repairing or upgrading your Fuel Injector, using high-quality parts is key to keeping your 1999 GMC W4500 Forward looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Fuel Injection System and Fuel Injector O-Ring Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Fuel Injectors from Trusted Brands

Looking for a reliable Fuel Injector? We’ve got you covered with options from brands you know and trust like Dorman. For example, Dorman Fuel Injectors start at just $21.29 with an average 4.2 star rating. With over 4 reviews and a solid 5 star average, you can shop with confidence knowing other GMC W4500 Forward owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 GMC W4500 Forward Fuel Injector at Advance Auto Parts is around $1,800.42, with a range that starts at $21.29 and goes up to $2,878.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Pro-Flo 4 EFI 4150-Style Kit No. 35780 For Chevy Small-Block with Vortec/E-Tec Heads and Pro-Flo 4 EFI XT-Style Kit No. 35820 For Chevy Small-Block with Vortec/E-Tec Cyl Hds start at just $2,500.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Fuel Injector, don’t forget to check out other key components like Exhaust Gas Recirculation (EGR) Parts. At Advance Auto Parts, we’re here to help you keep your 1999 GMC W4500 Forward in peak condition, inside and out.

Essential 1999 GMC W4500 Forward Fuel Injectors

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 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

Most Popular Fuel Injection System for 1999 GMC W4500 Forwards

Enhance your 1999 GMC W4500 Forward with one of the 2 Fuel Injection System we have in stock, starting at just $2,500.99.

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

Best-Selling 1999 GMC W4500 Forward Fuel Injector O-Ring Kit

Upgrade your W4500 Forward with our best-selling Fuel Injector O-Ring Kit with a 4.5 Starts rating across 4 reviews.

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

Top-Rated Fuel Injector Brands For Your 1999 GMC W4500 Forward

When it comes to finding the perfect Fuel Injector for your 1999 GMC W4500 Forward, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Fuel Injector brands including Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $21.29. Purchasing a Fuel Injector from us here at Advance Auto Parts is a smart move for both you and your 1999 GMC W4500 Forward, providing peace of mind with parts that meet or exceed OEM standards.

Popular Dorman 1999 GMC W4500 Forward Fuel Injectors

If you’re looking for a top-quality Fuel Injector for your 1999 GMC W4500 Forward, Advance Auto Parts has exactly what you need with our selection of Dorman Fuel Injectors. We have 1 Dorman Fuel Injectors in stock for this fitment, all known for their durability and precision fit. With prices starting at just $21.29, you’ll find the perfect Fuel Injector for your needs and budget. Dorman Fuel Injectors for the 1999 GMC W4500 Forward come highly rated, with over 4 customer reviews and an impressive average rating of 4.2 stars. Choosing a Dorman Fuel Injector from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
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 Injectors

What are the best-selling Fuel Injectors for 1999 GMC W4500 Forwards?

Out of 3 Fuel Injectors that fit 1999 GMC W4500 Forwards, the following parts are the top sellers:

What’s the price range for 1999 GMC W4500 Forward Fuel Injectors?

The prices of Fuel Injectors for the 1999 GMC W4500 Forward range from $21.29 up to $2,878.99 for the most premium parts.

What is the average price of a Fuel Injector for a 1999 GMC W4500 Forward?

The average price for Fuel Injectors for the 1999 GMC W4500 Forward is $1,800.42. Keep in mind the variety of part types within our Fuel Injector category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fuel Injectors for other GMC W4500 Forward model years?

Yes, we carry Fuel Injectors for 9 model years of GMC W4500 Forwards between 1998 and 2009. The following model years are the most popular for Fuel Injector purchases: 2009, 2008, 2007, 2006, 2005, 2000, 1998, 2001, and 2002.

What are the cheapest Fuel Injectors for my 1999 GMC W4500 Forward?

The cheapest 1999 GMC W4500 Forward Fuel Injectors we carry are:

Does Advance Auto Parts sell Fuel Injectors for any other 1999 GMC models?

Yes. We stock Fuel Injectors for 22 other popular 1999 GMC models. Some of the most popular are 1999 Yukon Fuel Injectors, 1999 Sierra 1500 Fuel Injectors, 1999 Savana 1500 Fuel Injectors, 1999 Savana 2500 Fuel Injectors, and 1999 Jimmy Fuel Injectors.

What are the top-rated Fuel Injectors that fit the 1999 GMC W4500 Forward?

The one 1999 GMC W4500 Forward Fuel Injector we have in stock is the Fuel Injector O-Ring Seal Kit. It is rated 4.5 stars and costs $21.29.

What types of Fuel Injectors 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 Injectors for a 1999 GMC W4500 Forward:

Can I get help with 1999 GMC W4500 Forward Fuel Injector orders?

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

What is your return policy for GMC W4500 Forward Fuel Injectors?

Advance Auto Parts keeps returns simple. For new GMC W4500 Forward Fuel Injectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.