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2006 Cummins Ram 2500–3500 Diesel Engine 5.9L

2006 Cummins 5.9L Diesel Engine

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Power, specs, and maintenance essentials

The 2012 Ford Powerstroke 6.7L Diesel Engine is a robust choice for heavy-duty applications, found in the 2012 Ford F250, F350, and F550 models. This turbocharged V8 engine delivers significant torque and horsepower, making it ideal for towing and hauling. Its design ensures both performance and efficiency, with a reputation for reliability and durability. Whether for work or recreation, the 6.7L Powerstroke handles demanding tasks with ease. For more details on its performance and specs, visit our 2012 F250 diesel engine page.

Diesel Engine

Final-year 5.9L for Ram heavy-duty

The 2006 Cummins 5.9L long block represents the last generation before the 6.7L series, known for its simplicity and longevity. Houston Engines provides both remanufactured and tested used units for Ram 2500 and 3500 trucks. Each engine is inspected for cracks, oil and coolant flow integrity, and compression balance. New or OE-grade bearings, rings, and gaskets are used in reman builds, while used options are leak-down and compression verified. Whether restoring a work truck or performing a full swap, this 5.9 Cummins long block delivers proven torque and dependable service life.

Remanufactured builds undergo complete machining, including torque-plate honing, crankshaft grinding or replacement, and connecting rod reconditioning to restore precise factory tolerances.

Each remanufactured engine receives new pistons, rings, bearings, and gaskets, while every cylinder head is pressure-tested and resurfaced to ensure long-lasting performance. The entire assembly process is torque-verified for accurate compression, smooth operation, and consistent output, ensuring the engine performs like new. This thorough attention to detail guarantees exceptional reliability, durability, and efficiency under demanding conditions.

Used engines are compression and leak-down tested, visually inspected via borescope, and cleaned thoroughly to confirm integrity. Seals are refreshed where necessary, and comprehensive build records are tied to each serial number for traceability. Documentation includes compression results, mileage estimates, and block casting references for added assurance. Whether it’s a reman Cummins 5.9L or a quality used option, Houston Engines ensures every unit delivers dependable performance and strong low-end torque.

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Are you in the market for a used engine to get your vehicle back up and running? Look no further than Houston Engines. We offer a wide selection of high-quality, used engines at affordable prices. We pride ourselves on our commitment to customer satisfaction and provide a hassle-free shopping experience for all our clients.

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Test process and warranty coverage

Every used Cummins 5.9L for sale is bench-tested or simulation-tested before leaving the facility to ensure performance and reliability. Compression, leak integrity, and oil pressure readings are carefully recorded for quality assurance.

Used units include limited parts coverage, while reman engines feature extended Cummins 5.9 warranty options that provide added protection. Each warranty includes detailed maintenance requirements and registration instructions to help customers maintain coverage and maximize long-term engine performance.

Follow proper break-in and installation procedures to ensure long-term performance and reliability. Always prime the oil system, use high-quality break-in oil, and complete all early maintenance intervals as recommended.

Replace cooling and fuel filters to maintain clean fluid circulation, flush the radiator to remove contaminants, and inspect the EGR system for clogging or corrosion that could restrict airflow or affect emissions. Proper attention to these steps helps the Cummins engine achieve full compression and stable operating conditions.

Always inspect the turbocharger and intercooler system for oil residue, debris, or internal damage before installation. Replace worn hoses and belts to prevent early leaks and pressure loss during operation. Following these best practices maximizes compression balance, protects vital components, and ensures dependable operation under demanding towing, hauling, or commercial use. Consistent maintenance and proper setup are key to long-lasting Cummins engine performance.

Fitment and Configuration Verification Process Guide

Designed for 2006 Ram 2500 and 3500 trucks equipped with the 24-valve 5.9L Cummins engine. Always verify VIN, emissions code, and PCM calibration before placing your order to ensure proper compatibility and performance.

Most sensors, manifolds, and brackets can transfer directly from your existing engine. Contact us to confirm casting matches and configuration details for your Cummins 5.9 replacement, ensuring a perfect fit and reliable installation every time.

Houston Engines provides installation guides, torque specs, and pre-start checklists to ensure a smooth and accurate engine installation. Ask for freight and core details to simplify your order process, streamline logistics, and minimize downtime during replacement, allowing your Cummins engine to be installed efficiently and get your vehicle back to reliable performance quickly.

Freight and Core Handling Process Guide

Engines are packaged securely with steel strapping and reinforced corner protection to prevent damage during transport. Each shipment is carefully prepared for safety and stability, whether it’s traveling locally or long distance. Lift-gate or dock delivery options are available to accommodate your facility’s unloading capabilities and ensure smooth, efficient handling upon arrival.

Before returning a core, drain all fluids completely and secure the core tightly in the original crate. Use the supplied RMA and return BOL to ensure accurate processing. Schedule the core return promptly to avoid unnecessary delays or possible deductions from the credit amount.

Core credits are issued quickly after inspection. However, excessive damage, missing major components, or contamination may reduce the refund value. Follow the provided checklist carefully to ensure a smooth return process and receive your full eligible core credit without delays.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

Is the 2006 Cummins 5.9L engine compatible with both Ram 2500 and 3500?

Yes, this 2006 Ram 3500 engine and Ram 2500 5.9 diesel fit models equipped with the 5.9L Cummins.

Are these engines tested before shipping?

Every used engine and remanufactured engine is compression and leak-tested by Houston Engines.

What warranty options are available?

Used engines come with limited coverage; reman units include extended Cummins 5.9 warranty options.

Do you offer both used and remanufactured versions?

Yes, both used Cummins 5.9L for sale and reman versions are available with test documentation.

What’s included in the long block assembly?

Each 5.9 Cummins long block includes core internals, ready to accept accessories from your existing engine.

How should I maintain my reman Cummins 5.9L engine?

Follow the break-in guidelines provided with your engine, including oil changes and coolant flushes.

Can I get technical help during installation?

Yes, contact us for torque specs, installation support, and configuration verification.

How long does shipping take for Cummins 5.9 engines?

Cummins 5.9 shipping varies by region but is typically prompt through Houston Engines’ freight network.

What testing is done on used Cummins 5.9L for sale?

Each unit is compression, leak-down, and oil flow tested to ensure Cummins reliability.

How do I get a quote or confirm fitment?

Simply contact us with your VIN or truck details for accurate fitment and pricing from Houston Engines.

Why Buy From Us?

We strive to be the ultimate destination for recycled auto parts. With access to a vast inventory and exclusive parts network, we offer millions of quality parts. We specialize in used engines and transmissions with new stock weekly. Our commitment to quality means that you can trust that you're getting the best possible part for your vehicle.