Skip to content

3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine

3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine is a direct-fit replacement fuel injector priced at $16.83. Designed for reliable diesel performance, it ensures precise fuel delivery and smooth engine operation for 1989–2007 Dodge Cummins 5.9L applications.

$16.83

● In stock

Buy at Lab Work Auto →

Price and availability may change. Click to see current details on Lab Work Auto.

Key features

  • Direct fit for 5.9L Cummins diesel engines
  • Brand new, not remanufactured
  • Precise fuel atomization for efficient combustion
  • Compatible with Dodge Ram 2500/3500 models
  • OEM-spec design for reliable performance
  • Ready to install, no tuning required
  • Affordable at $16.83 per unit

Pros

  • +Low cost per injector
  • +New construction ensures reliability
  • +Matches OEM dimensions and flow rate
!

Cons

  • May require professional installation
  • Limited warranty details available

About 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine

What is 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine?

The 3919347 Brand New Fuel Injector is a direct-fit replacement component engineered for Dodge Ram trucks equipped with the 5.9L Cummins diesel engine. Priced at just $16.83, this injector delivers accurate fuel atomization to maintain engine efficiency, power output, and cold-start reliability. Built to meet OEM specifications, it's ideal for owners restoring or maintaining older diesel pickups from the late 1990s through mid-2000s. Each unit is brand new, not remanufactured, ensuring consistent performance across all six cylinders.

Key features

  • Direct Fit — Matches OEM specifications for seamless installation on 5.9L Cummins engines.
  • New Construction — Not remanufactured; ensures longevity and consistent spray pattern.
  • Precise Fuel Delivery — Optimizes combustion efficiency and engine responsiveness.
  • Cost-Effective — Priced under $17, making it an affordable alternative to OEM replacements.
  • Wide Compatibility — Fits multiple Dodge Ram models from 1989 to 2007.
  • Ready to Install — No additional modifications or tuning required post-installation.
  • SKU F7-5731 — Easy to track and reorder through Lab Work Auto.

Who is 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine for?

This fuel injector suits DIY diesel enthusiasts, fleet maintenance technicians, and owners of aging Dodge Ram 2500 and 3500 trucks seeking affordable, reliable replacements. It’s especially valuable for those avoiding high-cost dealership parts while maintaining engine integrity. Whether replacing a single faulty injector or refreshing the full set, this part supports long-term drivability and performance in work trucks, towing rigs, and off-road builds.

How does 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine compare?

Compared to remanufactured or used injectors, the 3919347 offers superior consistency and reliability due to its brand-new construction. While OEM Cummins units may cost significantly more, this aftermarket version delivers comparable fit and function at a fraction of the price. It outperforms generic no-name injectors by adhering closely to original design tolerances, reducing the risk of misfires or fuel leaks. For budget-conscious owners who still demand dependable performance, this injector strikes a balanced middle ground between cost and quality—ideal for preserving older diesel engines without overspending.

🎯

Best use cases

  • Replacing failed fuel injectors
  • Restoring older Cummins diesel engines
  • Upgrading from worn stock units
  • Maintaining fleet vehicle performance
  • DIY diesel repair projects
🛒

Is 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine right for you?

This fuel injector is best for owners of 1989–2007 Dodge Cummins 5.9L trucks needing affordable replacements. Ideal for intermediate DIYers with basic mechanical skills or professionals servicing older diesels. Consider pairing with new injector seals and checking fuel pressure post-install. Alternatives include higher-priced OEM or remanufactured sets with extended warranties.

How it compares: Compared to remanufactured or used injectors, this new unit offers better consistency and longevity. It undercuts OEM pricing while meeting core performance specs, making it a smart choice for maintaining older diesel engines without overspending on premium rebuilds.

More from Lab Work Auto

?

Frequently Asked Questions

What vehicles fit the 3919347 fuel injector?

This injector fits Dodge Ram 2500 and 3500 trucks with the 5.9L Cummins diesel engine from 1989 to 2007. Always verify your engine model before purchase to ensure compatibility with your specific year and configuration.

Does the 3919347 injector come pre-tested?

While listed as brand new, specific flow testing or balancing data is not provided. It meets OEM specifications for fit and function, but professional testing after installation is recommended for optimal performance.

How do I install the 3919347 fuel injector?

Installation requires removing the old injector, cleaning the bore, and inserting the new unit with fresh seals. Torque to factory specs and bleed the fuel system. Basic diesel mechanical experience is strongly advised.

Is the 3919347 injector remanufactured?

No, this is a brand new fuel injector, not rebuilt or remanufactured. It is designed to OEM standards and offers improved reliability over used or refurbished units.

Can I replace just one 3919347 injector?

Yes, you can replace a single faulty injector. However, if other injectors show signs of wear, consider replacing multiple units or the full set to maintain balanced engine performance.

How much does 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine cost?

3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine is $16.83 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.

Is 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine in stock at Lab Work Auto?

Yes, 3919347 Brand New Fuel Injector fit for Dodge Cummins 5.9L Diesel Engine is currently in stock at Lab Work Auto.

Specifications

SKU
F7-5731
Last updated May 14, 2026