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Cummins ISX 15L CM871/EPA07 Reman Diesel Engine

Cummins ISX 15L CM871/EPA07 Reman Engine

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Proven Performance for Heavy-Duty Trucks

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.

Reman Diesel Engine

Proven Performance for Heavy-Duty Trucks

The Cummins ISX 15L CM871 engine is a proven workhorse trusted by fleets that require long-haul reliability and durability. This remanufactured EPA07-compliant diesel engine offers a budget-friendly alternative without compromising factory-level performance or longevity. Renowned for its strong power output and high torque, the CM871 is ideal for commercial trucks operating under demanding conditions. Equipped with advanced EGR systems and VGT turbo technology, this reman Cummins ISX 15L meets today’s heavy-duty performance standards while preserving the trusted engineering and robust design that Cummins is known for in the industry.

The Cummins CM871 engine boasts impressive specs, including a 15-liter displacement, 400–600 horsepower range, and peak torque reaching up to 2050 lb-ft. Designed to meet EPA07 emissions standards, it features integrated EGR and DPF systems while maintaining the strong pulling power needed for heavy-duty applications. Its robust build includes a forged steel crankshaft and hardened cylinder liners, delivering reliable performance over extended mileage.

Whether you're replacing a failed engine or upgrading older fleet vehicles, the remanufactured ISX engine offers restored performance at a significantly lower cost than a brand-new unit. It’s an ideal fit for a variety of Class 8 trucks such as Freightliner, Peterbilt, and Kenworth models. Each rebuild includes new pistons, bearings, and reconditioned cylinder heads, ensuring like-new reliability. For fleet operators, this engine offers a dependable solution that delivers consistent power and efficiency, mile after mile, in the most demanding conditions.

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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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Real-World Fuel Economy & Longevity

The Cummins ISX 15L engine is known for fuel efficiency, averaging 6–7 MPG under typical loads. Its variable geometry turbo helps optimize fuel delivery without sacrificing responsiveness. Driving habits, terrain, and vehicle setup can affect performance, but efficiency remains consistent.

With proper maintenance, the ISX 15L can exceed 1 million miles. Regular upkeep of the DPF, EGR system, and oil changes is essential for longevity and reduced repair costs.

Investing in a high-quality remanufactured Cummins ISX 15L engine offers a cost-effective alternative to purchasing a new unit. Rebuilt to meet OEM standards, these engines are carefully inspected, machined, and reassembled using either new or reconditioned parts.

This helps restore performance to like-new levels while significantly extending the engine’s lifespan. It also provides a great opportunity to refresh aging equipment without incurring the full cost of brand-new powertrains.

For operations relying on heavy-duty trucks, a reman Cummins ISX 15L can be a smart long-term investment. It supports maximum uptime, reduces unexpected breakdowns, and helps avoid the frequent repair cycles that come with older engines. When paired with proper fleet management practices, this engine continues to offer a powerful balance of fuel economy, durability, and cost savings—making it a cornerstone option for demanding commercial applications.

Common CM871 Issues & Solutions

A common issue with the Cummins ISX CM871 engine is the failure of the EGR valve and cooler, leading to reduced fuel economy and power loss. Other frequent problems include DPF clogging and VGT actuator issues, which can impact overall performance and reliability.

During the remanufacturing process, these components are carefully addressed by replacing or upgrading them. This ensures the rebuilt engine meets OEM standards and offers improved durability, eliminating many issues seen in older or high-mileage engines.

Choosing a professionally remanufactured Cummins ISX CM871 engine means you're investing in a solution that avoids the typical pitfalls of worn-out units. Expert tuning and calibration during the rebuild process ensure smooth, reliable operation after installation. This is especially important for trucks frequently operating under high-load or stop-and-go conditions, where performance and efficiency are critical.

Is a Reman Cummins ISX CM871 Right for You?

If your engine is experiencing frequent downtime, overheating, or oil leaks, a remanufactured ISX engine could be the ideal solution. Reman engines provide greater reliability than used ones, with tested components and warranties that help reduce long-term repair costs and improve performance.

Truck owners working with Class 8 diesel engines should also explore options like the ISX 12L diesel engine or other Cummins diesel rebuilds. These engines are versatile and can be tailored to meet the demands of various fleets and applications, offering reliable power for different vehicle configurations.

For vocational trucks or off-road equipment, a John Deere reman diesel engine is a smart choice. Known for their durability, these engines handle tough agricultural and industrial conditions with ease. For expert assistance or more information, please contact us.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

What vehicles commonly use the Cummins ISX 15L CM871?

Primarily heavy-duty trucks from Freightliner, Peterbilt, and Kenworth utilize the ISX CM871. It's ideal for long-haul Class 8 vehicles.

How much horsepower does the CM871 deliver?

This engine typically offers between 400 and 600 horsepower, depending on factory calibration.

What are the common problems with the ISX CM871?

Frequent issues include EGR cooler failure, clogged DPF filters, and VGT actuator malfunctions.

What’s the fuel economy of this engine?

It averages 6–7 MPG, depending on driving conditions and load weight.

Is a remanufactured ISX engine a good investment?

Yes. It restores performance, includes warranty coverage, and costs less than a new engine.

How long does a reman Cummins ISX engine last?

With proper care, you can expect it to run 800,000 to over 1 million miles.

Does this engine meet EPA emissions standards?

Yes, the CM871 is compliant with EPA07 emissions regulations.

Where can I get a Cummins ISX 15L rebuilt?

You can find remanufactured units from specialists like Houston Engines.

What is the warranty on a reman ISX engine?

Most come with a 1- to 2-year warranty covering major components.

How does this compare to newer Cummins engines?

Newer models offer advanced aftertreatment systems, but the CM871 remains a reliable and simpler alternative for many fleets.

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.