When Does Your Diesel Engine Need an Injector Nozzle Replacement?

Your engine relies on each nozzle to deliver fuel in a precise spray pattern. Over time, wear and buildup can disrupt that process and trigger performance issues. 

Look for these warning signs:

Rough Idle and Hard Starts

If your engine shudders at idle or struggles to fire on the first turn, worn nozzles may be spraying unevenly into the combustion chamber.

Increased Fuel Consumption

A drop in miles per gallon often means fuel is not atomizing correctly. Replacing nozzles restores the fine mist your engine needs for efficient burn.

Visible Smoke or Soot

Thick black or gray exhaust indicates incomplete combustion. New or rebuilt nozzles clear out carbon deposits and bring emissions back in line.

Power Loss and Hesitation

When acceleration lags or the engine hesitates under load, nozzle wear could be the culprit. Fresh spray tips revive throttle response and torque delivery.

Check Engine Light

Fault codes associated with cylinder misfires, injector flow imbalance, or emissions controls often indicate issues with nozzle health. A timely replacement avoids more costly repairs.

If you notice any of these issues, browse our catalog to find the correct new, rebuilt, or used nozzle for your engine. 

Match Your Budget with New, Used, and Rebuilt Diesel Nozzles

Select the exact condition you need to balance cost, performance, and reliability. Use our filters to sort by engine make, part number, or price.

New Diesel Nozzles

Goldfarb’s new nozzles arrive factory sealed and ready to install. Each one comes from OEM or approved remanufacturers in our network, featuring untouched internals and precision-machined spray orifices. These parts slip straight into stock fuel lines and restore performance for your demanding applications.

Rebuilt Diesel Nozzles

Sourced from certified remanufacturers, rebuilt nozzles deliver near-factory spray quality at a lower cost. Goldfarb inspects every unit against a detailed checklist, checking orifice geometry, thread accuracy, and sealing surface flatness. The result is a reliable solution for engines with high service hours.

Used Diesel Nozzles

When cost matters most, used cores cut parts expense. Goldfarb’s inspection process confirms orifice integrity, body finish, and thread condition. We make sure each core meets rebuildable standards. If any core falls short, a replacement, or refund is provided under the core-return policy. 

We Only Offer Trusted Diesel Nozzle Brands

Goldfarb partners with industry-leading manufacturers to stock nozzles that meet and exceed OEM tolerances. Each brand delivers proven performance across diverse diesel platforms:

We Only Offer Trusted Diesel Nozzle Brands

Goldfarb sources from the top names in fuel delivery, so you know every nozzle meets exacting standards for performance and durability.

Bosch Nozzles

Bosch leads the industry with precise orifice machining and consistent spray patterns. These nozzles deliver smooth starts, improved fuel economy, and long service life in high-pressure systems.

CAV Nozzles

Built for heavy-duty use, CAV nozzles withstand harsh operating conditions on agricultural and construction equipment. You get reliable flow rates and reduced downtime.

Delphi Nozzles

Delphi injectors combine advanced materials and tight tolerances for clean combustion in light and medium-duty vehicles. Expect reduced exhaust smoke and quieter engine operation.

Denso Nozzles

Denso’s innovative spray designs enhance atomization in Japanese and European engines. Experience enhanced throttle response, reduced emissions, and consistent power delivery.

IHI Nozzles

Compact and efficient, IHI nozzles excel in turbocharged pickups and SUVs. Their optimized spray angles give quick spool-up and better fuel burn in cramped engine bays.

Lucas Nozzles

Lucas nozzles bring proven reliability to classic and specialty diesel applications. They deliver consistent spray under varied loads and keep older engines running like new.

Stanadyne Nozzles

Designed for industrial and marine power units, Stanadyne nozzles are resistant to vibration and heat. You benefit from uninterrupted operation on generators and work boats.

Zexel Nozzles

Zexel nozzles thrive in demanding mining and construction settings. Their heavy-duty construction ensures precise fuel delivery even under extreme pressure.

Discover the Ideal Nozzle for Your Diesel Application

Discover the ideal injector tip to achieve peak performance, reliability, and fuel savings in every application.

Outfit Your Light-Duty Truck for Daily Drives

Upgrade your pickup or delivery van with nozzles engineered for smooth acceleration and crisp throttle response. Enjoy cleaner starts and better highway economy on every trip.

Power Through Heavy-Duty Hauls

Select nozzles designed to maintain spray accuracy even under heavy loads. Maintain steady torque on long climbs and highway runs, so your drivers reach every destination on time.

Maximize Farm Equipment Uptime

Keep tractors and harvesters running strong through dust and debris. Our field-tested nozzles deliver uniform atomization, cutting carbon buildup and minimizing service stops during peak seasons.

Conquer the Toughest Job Sites

Equip excavators, loaders and bulldozers with nozzles that resist vibration and contamination. Reliable spray patterns ensure your earthmoving machines stay productive from dawn until dusk.

Sail Smoothly on Marine Engines

Combat salt spray and heat buildup with marine-grade nozzles. These parts guarantee consistent performance for boat motors and backup generators during extended operation.

Stabilize Industrial Power Units

Choose nozzles that deliver precise fuel flow across fluctuating loads. Keep pumps and compressors running without stalls or hiccups in factories, mines, and remote installations.

Boost Custom Builds and Performance Engines

Dial in maximum horsepower and instant throttle response. Our performance nozzles give engine builders the control they need for high-output applications.

Select your application above, then browse our catalog by part number and condition to secure the exact nozzle your engine demands.

Buy Diesel Nozzles Built to Stand the Toughest Jobs

Replacing worn tips has immediate benefits. Select a new nozzle to restore factory-grade spray and unlock lasting gains.

Elevate Light-Duty Truck Efficiency

A new nozzle refines fuel dispersion, reduces black smoke, and improves fuel efficiency. Your daily driver will feel more responsive at every throttle input.

Maximize Heavy-Duty Hauler Torque

Consistent atomization under load preserves torque curves on long hauls. Drivers notice steadier pulls up grades and fewer downshifts.

Keep Farm Machinery Running Strong

New tips minimize unburned fuel in field operations. Expect reduced carbon buildup and fewer service stops during planting and harvest seasons.

Sustain Marine and Generator Reliability

Precision nozzles resist corrosion from salt spray and high heat. Your boat engines and backup generators maintain steady power delivery on extended runs.

Boost Performance Builds

Race-grade nozzles allow fine-tuning of fuel maps. Achieve peak horsepower without compromising throttle response or engine longevity.

Order Diesel Nozzles in Four Quick Steps

1. Search by Part Number or Engine – Enter OEM code or the part number/name in our dedicated search bar

2. Select Condition – New, rebuilt, or used nozzles to match your budget

3. Add to Cart and Check Out – Secure payment and shipping options available

4. Track Your Shipment – Receive email updates until delivery

Need help choosing your nozzle? Call our diesel specialists or start a live chat session now.

Why Order Diesel Nozzles from Goldfarb & Associates?

Choose Goldfarb for an unmatched buying experience and the confidence that your engine will perform at its best.

1. Factory-New Internals in new units, no hidden wear

2. Proven Rebuild Process restoring core components to OEM standards

3. Rigorous Inspection for every nozzle. Our visual and dimensional checks ensure accuracy

4. Same-Day Shipping on orders placed by 3:30 PM EST, Monday through Friday

5. Free Domestic Shipping on qualifying orders over $50; international delivery available

6. Expert Diesel Support via phone or live chat, 9 AM–5 PM EST

Frequently Asked Questions

Can I return a diesel nozzle if it does not fit?

Yes. Unopened new, and rebuilt nozzles are eligible for return within 30 days. Used cores that cannot be rebuilt qualify for a full refund under our core-return guarantee.

Are rebuilt nozzles as effective as new units?

Rebuilt nozzles are disassembled, cleaned, inspected, and reassembled with component replacement to match factory tolerances. They deliver nearly identical spray characteristics at a lower price.

How fast will my order ship?

Orders placed by 3:30 PM EST on weekdays ship the same day from our Maryland warehouse. Transit time varies by destination and shipping method.

Do you provide technical assistance?

Our diesel experts are available by phone and live chat, Monday through Friday, 9 AM to 5 PM EST. Get fitment advice, installation tips, and troubleshooting instantly.

Which brands of diesel nozzles do you carry?

We stock nozzles from Scania, Cummins, Case, New Holland, Mercedes, Mack, Volvo, Deutz, Massey Ferguson, Perkins, and Fiat. Each brand meets rigorous quality standards for spray-pattern accuracy and durability.

Is there a discount for bulk orders?

Yes. Orders of ten nozzles or more receive up to 15 percent off the list price. Contact sales@goldfarbinc.com for custom pricing and delivery options.

What happens if a used core arrives damaged?

Any used core that fails our rebuildable inspection is replaced or refunded at no extra charge under our core-return policy.

Can I get help identifying the right nozzle for my engine?

Absolutely. Call (301) 770-4514 or start a live chat session for immediate expert recommendations based on your engine’s make, model, and operating environment.

Ready to Buy Diesel Nozzles? Buy Now for Peak Performance

Don’t let worn nozzles compromise your engine. Shop new, rebuilt, and used diesel nozzles today and benefit from rapid fulfillment, rigorous quality checks, and expert guidance. Place your order now or call us for a personalized quote. 

Your engine demands precision; Goldfarb delivers excellence!