Is your Caterpillar 3406E overheating, running rough, or showing signs of a misfire? This can lead to an injector cup failure from compression in your fuel system, worn O-rings, and a faulty injector hold-down bolt – taking you off the road and money out of your pocket.
It’s time to put an end to your troubles and find your solution. Contact the experts at Highway and Heavy Parts where we provide technical service, accurate parts ordering, and fast shipping – getting you back on the road.
Replacement Options For Your Caterpillar 3406E Fuel Injector

Key Features Of This Injector:
- Guaranteed to meet the requirements and lower emissions from your engine.
- Produced and tested using the latest OEM technology and tooling available.
- 1-Year Unlimited Mileage Warranty
Experience the difference HHP can do for you and your diesel engine, like this Remanufactured Fuel Injector for the Caterpillar 3406E! Each injector is fully disassembled, thoroughly inspected, all critical components replaced, and all flat surfaces are lapped for proper sealing purposes. Control valves are rebuilt and dimensioned back to OE specifications, flow tested, and reground to ensure proper sealing and atomization. Nozzles come with a new tip & new O-rings are installed before packaging.
All components are calibrated for optimal flow, internal pressure, and timing of the injector, that meets or exceeds OEM specifications!
Quality, increased efficiency & power! Backed by a 1-year unlimited mileage warranty and expert advice from our ASE Certified Technicians.
Connect with Highway and Heavy Parts for industry leading technical expertise, quality diesel parts, and fast shipping. Providing you with one complete solution. Order now by calling 844-304-7688. Or visit us online at highwayandheavyparts.com. From diagnosis through delivery, we’re highway and heavy parts.
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FAQs for the Caterpillar 3406E Fuel Injectors
1. What are the common symptoms indicating a failing Caterpillar 3406E fuel injector?
If your Caterpillar 3406E engine is overheating, running rough, or showing signs of a misfire, these symptoms may indicate injector cup failure, worn O-rings, or a faulty injector hold-down bolt. Such issues negatively impact fuel delivery and engine performance, leading to downtime and costly repairs if not addressed promptly by replacing or remanufacturing your fuel injector through Highway and Heavy Parts.
2. What makes the Caterpillar 3406E remanufactured fuel injectors from Highway and Heavy Parts reliable?
Highway and Heavy Parts remanufactured fuel injectors for the Caterpillar 3406E are fully disassembled and meticulously inspected. All critical components are replaced, flat surfaces are lapped for proper sealing, control valves are rebuilt to OE specifications, and nozzles come with new tips and O-rings. These injectors meet or exceed OEM standards and come backed by a 1-Year Unlimited Mileage Warranty, ensuring reliability and optimal performance.
3. How does a remanufactured fuel injector improve the performance of a Caterpillar 3406E engine?
Installing a remanufactured fuel injector from Highway and Heavy Parts restores optimal flow, internal pressure, and precise timing of fuel delivery. This leads to better combustion, increased engine efficiency, reduced emissions, and smoother running. It helps your Caterpillar 3406E engine regain power and reliability while preventing further damage from worn injector components.
4. What technical support does Highway and Heavy Parts provide when ordering a Caterpillar 3406E fuel injector?
Highway and Heavy Parts offers expert technical service and accurate parts ordering, backed by ASE Certified Technicians. Their team guides customers through diagnosing engine issues, selecting the right fuel injector, and ensures fast shipping to minimize downtime. This comprehensive support makes them a trusted source for Caterpillar 3406E engine parts.
5. How can I order a Caterpillar 3406E fuel injector from Highway and Heavy Parts?
To order a Caterpillar 3406E fuel injector, simply call Highway and Heavy Parts at 844-304-7688 or visit highwayandheavyparts.com. Their streamlined online quoting system also allows you to get quick pricing if you’re short on time. From diagnosis to delivery, Highway and Heavy Parts provides a complete solution to get your diesel engine back on the road efficiently.






