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7N9843 Nozzle for CAT 3400, 3406, 3408 & more
- New Nozzle Replacement suitable for Caterpillar Equipment
- Made to USA Specification
Buy with Confidence: All parts are covered by our warranty
Exact Fit Guarantee
This part is guaranteed to fit your machine.
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Description for 7N9843 Nozzle
â–¶Specification for 7N9843 Nozzle
â–¶Exact Fit Guarantee for 7N9843 Nozzle
â–¶| Models | SR4, 3400, 3406, 3408, 3408B, 3412 |
|---|---|
| Dimensions | 1.46x0.51x1.46 |
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Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.
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When I had questions, they were answered quickly and kindly.
Thank you!! -
A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you. -
Amazing Help.
I don't know who I spoke with, but they were helpful. We will be buying those parts shortly. -
Very knowledgeable and quick to quote parts.
Very quick to respond to parts quotes. Knowledgeable and Polite, and very quick shipping. Definitely will purchase parts from these guys in the future.
Frequently Asked Questions
What is the Caterpillar 7N9843 nozzle used for?
The Caterpillar 7N9843 nozzle is a high-quality aftermarket replacement designed for fuel system applications in Caterpillar 3400 series engines and related equipment. It is manufactured to meet or exceed OEM specifications for dependable fuel delivery and long-lasting performance.
What are the benefits of the 7N9843 nozzle?
- Helps support accurate fuel delivery and atomization
- Designed for reliable engine performance
- Manufactured from durable materials for long service life
- Designed to meet or exceed OEM specifications
- Suitable for demanding heavy-duty engine applications
Is the 7N9843 nozzle compatible with multiple Caterpillar engines?
Yes, this nozzle may fit various Caterpillar engine models including 3400, 3406, 3408, 3408B, and 3412 applications depending on the fuel system configuration. Check your manual or reach out to Propel Parts for help verifying fitment.
Why is replacing worn fuel nozzles important?
Replacing worn fuel nozzles helps maintain proper fuel spray patterns, improve combustion efficiency, and support dependable engine performance while reducing unnecessary fuel system wear.
Does the 7N9843 nozzle meet OEM standards?
Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, fuel delivery performance, and durability.
Can a damaged fuel nozzle affect engine performance?
Yes. A worn or damaged nozzle may contribute to poor fuel atomization, reduced engine efficiency, rough operation, increased fuel consumption, and excessive smoke.
Are related Caterpillar fuel system parts available from Propel Parts?
Yes. Propel Parts offers a wide range of replacement fuel system components for Caterpillar equipment. You can also explore the Caterpillar Fuel Nozzles Collection for additional replacement options.
This 7N9843 Nozzle is compatible with the following models:
SR4, 3400, 3406, 3408, 3408B, 3412 & more...
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
Exact Fit Guarantee®
The right part — or we'll make it right.
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Know your part number? Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.
We Make It Right
Wrong part? We'll make it right.Fast. At our expense.
1 YEAR UNLIMITED WARRANTY
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EASY RETURNS & FAST REFUNDS
