Fuel Injector

Premium Diesel Fuel Injectors – Bosch, Cummins, Delphi, Stanadyne & Alliant Power

Find the right diesel fuel injector for your engine at Express Diesel USA. Our selection covers industry-leading brands like Bosch, Cummins, Delphi, Stanadyne, and Alliant Power—engineered for precise fuel delivery, clean combustion, and long service life.

Why Choose Our Fuel Injectors?

  • Precision & Efficiency: Tight tolerances for consistent atomization and improved fuel economy.
  • Wide Coverage: Options for Cummins, Powerstroke, Duramax, Yanmar, John Deere, Case IH, New Holland, Mitsubishi Fuso, Bobcat, Doosan and more.
  • OEM & Premium Aftermarket: New and remanufactured choices from Bosch, Cummins, Delphi, Stanadyne, Alliant Power.
  • Single or Matched Sets: Maintain balanced fueling across cylinders.
  • QC Tested: Spray pattern, leakage and flow verified to OEM spec.

How to Pick the Correct Injector

  1. Match by Part Number: Use OEM/cross-reference numbers on your injector or service manual.
  2. Confirm Engine Family: Displacement, model year and ECU calibration requirements.
  3. Choose Configuration: New, reman, single units or full sets.
  4. Add Install Kit: O-rings, washers and return lines for a complete job.

Need help? Contact our team for compatibility checks.

Best Sellers

Top Brands & Applications

Popular references across Bosch common-rail, Cummins mid/heavy-duty, Delphi off-highway, Stanadyne rotary & pencil-style, and Alliant Power OE-quality replacements. Applications include highway trucks, farm tractors, construction machinery, marine engines and industrial generators.

Pro Tips for Injector Longevity

  • Use clean, spec-grade diesel and replace fuel filters on schedule.
  • Follow torque specs and always install new sealing washers/O-rings.
  • Scan for DTCs and perform injector coding/calibration when required.
  • Address hard-start, rough idle or smoke early to prevent collateral damage.

FAQ

Are these injectors OEM-spec?

We offer genuine OEM and high-quality aftermarket/reman units that meet or exceed OEM specifications.

Should I replace injectors as a set?

Matched sets help maintain balanced fueling and smooth operation on high-mileage engines.

How do I confirm compatibility?

Match by OEM part number or engine family. If unsure, contact us with VIN/engine model and current injector number.

Filter the collection by brand, engine or price, and order with confidence. Express Diesel USA—your trusted source for reliable diesel fuel injectors, expert support and fast fulfillment.