When Should You Replace a Delphi Diesel Injector Nozzle?

A diesel nozzle may be small, but its role in fuel spray and efficiency is massive. Watch for power loss under load, heavy smoke at startup, rough idle or surging, rising fuel consumption and repeated injector troubleshooting.

These signs signal nozzle wear and mean it is time to replace your nozzle to restore engine balance.

Why Diesel Technicians Trust Delphi Nozzles

Delphi nozzles are built for high-precision fuel delivery in demanding environments. Their legacy of OE-quality engineering makes them a preferred choice in many commercial, agricultural, and industrial diesel systems.

Here’s what sets Delphi nozzles apart:

• Refined Spray Patterns: Delphi’s nozzle tips are designed to create fine, consistent atomization, which supports more complete fuel combustion.

• High-Durability Materials: Each nozzle is constructed with hardened metals that resist heat, corrosion, and wear, even in the most demanding operating conditions.

• Optimized Fuel Economy: A clean spray pattern reduces fuel waste, which directly improves operating efficiency and lowers emissions.

• Compatible With Multiple Systems: From mechanical to electronically controlled injection systems, Delphi nozzles are available for a wide variety of engines and equipment.

Choose from New, Rebuilt, or Used Delphi Diesel Nozzles

We stock three levels of nozzle inventory to meet every budget and maintenance strategy. Regardless of the condition you choose, each Delphi nozzle is physically and visually inspected to meet fitment expectations.

New Delphi Nozzles

Our new units come directly from authorised manufacturers and surplus sources. They’ve never been installed and are ready for full-cycle performance.

Rebuilt Delphi Nozzles

We get rebuilt units from our partner remanufacturers. Every rebuilt nozzle comes cleaned and restored using OEM-grade components. These options offer near-new reliability and come at a lower cost than factory-fresh parts.

Used Delphi Nozzles

Used nozzles undergo a comprehensive inspection checklist. We evaluate spray tip integrity, body condition, thread quality, and damage to solenoids or connectors. These budget-friendly units are ideal for short-term repairs and testing applications.

Match Your Engine to the Delphi Nozzle You Need

Finding the right fit is fast with our part search tool. Enter your engine make, model or Delphi part number to confirm compatibility. Common applications for our Delphi nozzles include:

• FIAT Industrial Engines such as the 780 and 1380 series, where BDLL140S6655CF improves atomization precision.

• Case IH Tractors including models 1270 and 1370 that demand consistent fuel delivery in field work.

• Allis Chalmers Tractors like the 5040, 5045 and 5050 prized for reliable nozzle performance.

• Kubota Series for M5950, M7580, M8580 and M9580 tractors in agriculture and landscaping.

• Yanmar Marine Engines such as the N16E-6E, N28E-6E and NP35 that run under corrosive sea conditions.

• Heavy-Duty Industrial Generators and construction machines calling for the larger-flow BDLL150S6403N tip design.

If your engine is not on this list, call us at (301) 770-4514 for custom fitment guidance.

Industries and Equipment We Support with Delphi Nozzles

Goldfarb’s Delphi nozzle inventory supports a wide range of diesel-powered sectors:

• Agricultural Machinery: From tractors to harvesters, Delphi nozzles are built to withstand long working days in the field.

• Light and Medium-Duty Trucks: Maintain consistent fuel delivery across your fleet to reduce breakdowns and improve emissions control.

• Off-Road and Construction Equipment: Delphi’s rugged construction helps your loaders, excavators, and graders perform reliably under heavy loads.

• Marine Engines: Certain Delphi nozzles resist corrosion and support consistent starts and throttle response in marine settings.

• Generators and Pumps: Stable fuel metering is critical in stationary power systems. Our Delphi stock supports long runtimes with minimal maintenance.

Why Buy Delphi Nozzles from Goldfarb & Associates?

When it comes to sourcing quality diesel components, your supplier makes all the difference. Goldfarb has served the diesel industry for over 20 years, and we’ve built a reputation around accuracy, availability, and customer support.

In-Depth Inspection for Every Nozzle

Each nozzle is evaluated for key factors like body wear, thread damage, connector integrity, and spray tip condition. We won’t list a part unless it passes our checklist.

Fast Shipping from Our Maryland Warehouse

In-stock orders placed before 3:30 PM EST ship the same business day. Need it fast? We deliver without delay.

Flexible Options to Match Your Budget

Buy what works for your budget: new for OEM-quality, rebuilt for dependable value, or used for budget repairs.

Expert Customer Support That Solves Problems

Our team doesn’t just sell parts, we help you solve problems. Not sure which Delphi part fits your engine? Call us with your injector or engine number and we’ll confirm the match.

A Guarantee That Protects Your Uptime

If a nozzle arrives in a condition different from what we promised, we’ll replace it or refund your order. No hassle, no waiting.

Frequently Asked Questions

How do I find the right Delphi nozzle for my engine?

Look at your current injector’s part number or engine serial. Use our site’s search function or call us for quick confirmation.

Are used nozzles ready to install?

Used parts are visually and physically inspected but may require servicing before installation, depending on your engine's tolerances and application.

Do rebuilt Delphi nozzles perform like new?

Yes. Rebuilt nozzles are cleaned, restored, and tested for OEM-grade functionality. They're ideal for long-term use without the cost of new parts.

What’s the lifespan of a Delphi diesel nozzle?

That depends on fuel quality and operating conditions, but most Delphi nozzles last thousands of engine hours when properly maintained.

Can I get help with cross-referencing part numbers?

Yes. We specialize in part matching. Just call us with your part number or injector details and we’ll help you find the correct Delphi fit.

Get the Right Delphi Nozzle for the Job

Ready to improve performance, cut fuel costs, and reduce maintenance downtime? Explore our current stock of new, rebuilt, and used Delphi nozzles and place your order today. Add your part to the cart or speak with a diesel parts expert at 800-555-1234.

At Goldfarb & Associates, we help you keep your engine running with parts that meet your standards, your timeline, and your budget.