6.7 Cummins Engine for Sale: Ultimate Buyer’s Guide for 2025

The 6.7 Cummins engine is a powerhouse in the world of diesel engines, renowned for its performance, reliability, and efficiency. Whether you’re replacing an old engine or upgrading your vehicle, finding a 6.7 Cummins engine for sale is a major investment. This guide will walk you through everything you need to know—from engine specifications and benefits to buying tips and where to find the best deals.

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Table of Contents

1. What Is the 6.7 Cummins Engine?

2. History and Evolution

3. Technical Specifications

4. Benefits of the 6.7 Cummins Engine

5. Common Applications

6. Buying Guide: New vs Remanufactured vs Used

7. What to Look for When Buying

8. Where to Buy a 6.7 Cummins Engine

9. Pricing Guide: What to Expect in 2025

10. FAQs about 6.7 Cummins Engines

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1. What Is the 6.7 Cummins Engine?

The 6.7L Cummins diesel engine is a turbocharged inline-six engine developed by Cummins Inc., primarily used in heavy-duty trucks such as the Ram 2500, 3500, 4500, and 5500 series. It has become a staple in the diesel community due to its durability and towing capabilities.

Often referred to as the “6.7 Cummins”, this engine is known for delivering massive torque, exceptional fuel economy for its class, and long-lasting service life—making it a top choice for work trucks and diesel enthusiasts alike.

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2. History and Evolution

Introduced in 2007 as a successor to the 5.9L Cummins engine, the 6.7L version came with significant technological upgrades to meet stringent EPA emissions standards. Over the years, Cummins has continued refining this engine, with upgrades in 2010, 2013, 2019, and beyond.

Key Milestones:

• 2007: Launch with DPF (Diesel Particulate Filter) and EGR (Exhaust Gas Recirculation)

• 2013: Introduction of SCR (Selective Catalytic Reduction)

• 2019: High-output version with 1,000 lb-ft torque

• 2023-2025: Continuous improvements in emissions control and efficiency

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3. Technical Specifications

Here’s a breakdown of the typical specs for a 2023–2025 6.7L Cummins engine:

Note: Specs may vary by model year and variant (standard vs high-output).

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4. Benefits of the 6.7 Cummins Engine

When shopping for a 6.7 Cummins engine for sale, you’re not just buying raw power—you’re investing in reliability and performance.

Key Advantages:

• Exceptional Torque: Ideal for towing heavy trailers or equipment.

• Fuel Efficiency: Superior mileage compared to competitors in the same class.

• Longevity: Known to last over 300,000 miles with proper maintenance.

• Aftermarket Support: Huge range of tuning, upgrades, and parts.

• Resale Value: Trucks with Cummins engines hold value longer.

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5. Common Applications

The 6.7 Cummins engine is commonly found in the following vehicles:

• RAM 2500/3500 HD Trucks

• RAM 4500/5500 Chassis Cabs

• Commercial Box Trucks

• Emergency Vehicles (Fire trucks, Ambulances)

• Custom Off-Road Builds

It’s also popular for engine swaps in older trucks or even off-road projects.

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6. Buying Guide: New vs Remanufactured vs Used

When you search for a 6.7 Cummins engine for sale, you’ll find three primary categories: new, remanufactured, and used.

New Engines:

• Pros: Factory warranty, no wear and tear

• Cons: Expensive, limited availability

Remanufactured Engines:

• Pros: Affordable, like-new condition, often includes warranty

• Cons: Quality varies by rebuilder

Used Engines:

• Pros: Cheapest option, readily available

• Cons: No warranty, unknown wear, potential for hidden issues

Pro Tip: For most buyers, a remanufactured 6.7 Cummins engine strikes the best balance between cost and reliability.

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7. What to Look for When Buying

Here are essential factors to consider when buying a 6.7 Cummins engine:

1. VIN Compatibility

Ensure the engine is compatible with your vehicle’s VIN. Some features vary across model years.

2. Mileage (for Used Engines)

Preferably under 150,000 miles with service history.

3. Compression Test

For used engines, always request a compression test report.

4. Emission Configuration

Verify if the engine includes working EGR, DPF, and SCR systems. You’ll need this to pass emissions in most states.

5. Warranty

Look for at least a 12-month warranty, especially from remanufactured engine suppliers.

6. Accessories Included

Check if it comes with the turbo, fuel system, sensors, or ECM. These parts can significantly affect your total cost.

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8. Where to Buy a 6.7 Cummins Engine

Whether you’re buying online or in person, only deal with reputable engine resellers.

Top Online Sources:

1. Cummins Engines Direct – www.cumminsenginesdirect.com

2. Diesel Power Products – www.dieselpowerproducts.com

3. eBay Motors – Great for used engines, but be cautious.

4. LKQ Online – Trusted supplier of used and reman engines.

5. CarPart.com – Nationwide network of junkyards and suppliers.

Local Options:

• Authorized RAM Dealerships

• Diesel performance shops

• Junkyards and salvage yards

• Engine rebuild specialists

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9. Pricing Guide: What to Expect in 2025

Here’s a breakdown of average 2025 prices:

Additional Costs:

• Installation: $1,500 – $3,000

• Tuning/ECM reprogramming: $500 – $1,000

• Shipping: $200 – $600 (depending on location)