Category Archives: Engine Platforms (Cummins, Duramax, Power Stroke)

Guides on Cummins, Duramax, and Power Stroke engines including reliability, problems, and buyer research.

Three heavy-duty diesel trucks towing different trailers on the highway, representing Cummins, Duramax, and Power Stroke engines in a 2026 comparison

Cummins vs Duramax vs Power Stroke (2026 Guide): Reliability, Towing & Ownership Compared

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Posted in Buying Guides & Research, Engine Platforms (Cummins, Duramax, Power Stroke)

Choosing between Cummins, Duramax, and Power Stroke isn’t just a brand preference — it’s a decision that affects towing performance, reliability, maintenance costs, and long-term ownership satisfaction. In 2026, modern diesel engines are more powerful and refined than ever, but they also come with increased complexity due to emissions systems and tighter regulations.

This guide breaks down the real-world differences between the three major diesel engines, explains what matters most depending on how you use your truck, and helps you decide which diesel platform is the right fit for your needs.

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Duramax generations explained by year from LB7 to L5P 6.6L diesel engines

Duramax Generations Explained: 6.6L Engine Updates by Year (LB7–L5P)

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Posted in Engine Platforms (Cummins, Duramax, Power Stroke)

The Duramax diesel engine family has shaped GM’s heavy-duty trucks for nearly 25 years. Born from a joint venture between General Motors and Isuzu, the Duramax replaced the aging 6.5L diesel and launched GM into true competition with Cummins and Power Stroke.

Each Duramax generation is defined by its Regular Production Option (RPO) code — LB7, LLY, LBZ, LMM, LML, and L5P — and each represents a major shift in power, reliability, emissions technology, or design philosophy.

Below is a complete, diesel-enthusiast-focused guide to Duramax generations by year, including strengths, weaknesses, major updates, and why certain Duramax engine years remain highly sought after today.

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Ford F-350 Power Stroke towing a fifth-wheel camper with the text ‘Ford Power Stroke Engine Updates by Year (1994–Present)’ overlaid.

Ford Power Stroke Engine Updates by Year (1994–Present)

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Posted in Engine Platforms (Cummins, Duramax, Power Stroke)

The Ford Power Stroke diesel family has powered Ford’s heavy-duty pickups and commercial trucks for more than 30 years. Across multiple generations, Power Stroke engines have delivered huge gains in horsepower, torque, emissions technology, and reliability.

From the legendary 7.3L to the modern 6.7L “Scorpion,” here is the full year-by-year evolution of the Power Stroke platform.

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Cummins generations explained by year showing 6.7L engine updates from 2009 to 2025

6.7L Cummins Generations Explained: Engine Updates by Year (2009–2025)

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Posted in Engine Platforms (Cummins, Duramax, Power Stroke)

The 6.7L Cummins turbodiesel has been the backbone of Ram heavy-duty trucks for more than a decade. As diesel competition intensified, Cummins introduced steady upgrades—boosting power, refining emissions systems, and strengthening internal components to support ever-increasing torque.

Below is a complete, year-by-year breakdown of 6.7L Cummins generations from 2009 through 2025, including power increases, emissions changes, and major mechanical updates.

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