1997 Duplex D8400 Fuel Injectors

Keep Your 1997 Duplex D8400 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 1997 Duplex D8400 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Fuel Injectors. 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.

Competitive Prices and Extensive Inventory

The average price for a 1997 Duplex D8400 Fuel Injector at Advance Auto Parts is around $439.99, with a range that starts at $439.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Fuel Injector, Fuel Injector, and Fuel Injector start at just $439.99 and offer a great balance of form and function.

Essential 1997 Duplex D8400 Fuel Injectors

Delphi – Fuel Injector (Part No.EX631763)

Fuel Injector

from

$439.99
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
See More

Delphi – Fuel Injector (Part No.EX631767)

Fuel Injector

from

$439.99
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
See More

Delphi – Fuel Injector (Part No.EX631766)

Fuel Injector

from

$439.99
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
See More

Most Popular Fuel Injectors for 1997 Duplex D8400s

Enhance your 1997 Duplex D8400 with one of the 3 Fuel Injectors we have in stock, starting at just $439.99.

Delphi – Fuel Injector (Part No.EX631767)

Fuel Injector

from

$439.99
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
See More

Delphi – Fuel Injector (Part No.EX631763)

Fuel Injector

from

$439.99
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
See More

Delphi – Fuel Injector (Part No.EX631766)

Fuel Injector

from

$439.99
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
See More

FAQs for 1997 Duplex D8400 Fuel Injectors

What are the best-selling Fuel Injectors for 1997 Duplex D8400s?

Out of 3 Fuel Injectors that fit 1997 Duplex D8400s, the following parts are the top sellers:

What is the average price of a Fuel Injector for a 1997 Duplex D8400?

The average price for Fuel Injectors for the 1997 Duplex D8400 is $439.99. 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.

What are the cheapest Fuel Injectors for my 1997 Duplex D8400?

The cheapest 1997 Duplex D8400 Fuel Injectors we carry are:

Does Advance Auto Parts sell Fuel Injectors for any other 1997 Duplex models?

Yes. We stock Fuel Injectors for 1 other popular 1997 Duplex models. Some of the most popular are 1997 D9400 Fuel Injectors and 1997 D350 Fuel Injectors.

What types of Fuel Injectors do you sell for my 1997 Duplex D8400?

We currently have just 1 Fuel Injector in stock for a 1997 Duplex D8400, and as of 11/2/25, it is a Fuel Injector.

Can I get help with 1997 Duplex D8400 Fuel Injector orders?

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

What is your return policy for Duplex D8400 Fuel Injectors?

Advance Auto Parts keeps returns simple. For new Duplex D8400 Fuel Injectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.