The 6.7 Cummins engine, renowned for its power and durability, is a popular choice for heavy-duty applications. Whether you're looking for a replacement engine for your truck, a project for a custom build, or a spare for your fleet, finding a used 6.7 Cummins engine for sale requires careful consideration. This guide will help you navigate the market and make an informed purchase.
What to Look for When Buying a Used 6.7 Cummins Engine
Buying a used engine is a significant investment, so due diligence is crucial. Here's what you should scrutinize:
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Engine Hours: Low engine hours generally indicate less wear and tear. However, consider the usage conditions. An engine with higher hours used for light-duty work might be in better shape than one with lower hours subjected to harsh conditions.
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Maintenance Records: Thorough maintenance records are invaluable. They provide a history of repairs, oil changes, and other vital services, offering insights into the engine's overall health and how well it was cared for. Ask for detailed records, including receipts for parts and labor.
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Compression Test: A compression test measures the pressure inside each cylinder. Low compression in one or more cylinders indicates potential problems like worn piston rings or valve issues. This test is essential for assessing the engine's internal condition.
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Leakdown Test: Similar to a compression test, a leakdown test reveals the condition of valves, piston rings, and cylinder walls. It's a more comprehensive evaluation of engine seal integrity.
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Visual Inspection: Carefully examine the engine for any signs of damage, leaks, or corrosion. Look for cracks in the block, signs of overheating, or excessive wear on components.
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Warranty: Inquire about any warranties offered by the seller. A warranty can provide some protection against unforeseen issues after your purchase.
Where to Find Used 6.7 Cummins Engines for Sale?
Several avenues exist for locating a used 6.7 Cummins engine:
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Online Marketplaces: Sites like eBay, Craigslist, and specialized truck parts websites often list used engines. However, exercise caution and thoroughly vet sellers before making a purchase.
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Truck Dealerships and Repair Shops: Many dealerships and repair shops handle used engine sales. These sources often offer more reliable engines with some level of verification.
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Salvage Yards: Salvage yards can be a cost-effective option, but be prepared to perform a more thorough inspection, as the history of these engines may be less clear.
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Private Sellers: You may find listings from private sellers who are upgrading their trucks or selling parts from a project. Be sure to verify their credibility and inspect the engine carefully.
How Much Does a Used 6.7 Cummins Engine Cost?
The price of a used 6.7 Cummins engine varies widely based on factors like engine hours, condition, and the seller. Expect to pay anywhere from a few thousand dollars for a heavily used engine to considerably more for a low-hour engine in excellent condition. Negotiating the price is common, particularly when dealing with private sellers.
What are the Common Problems with 6.7 Cummins Engines?
While renowned for their durability, even 6.7 Cummins engines can experience issues. Common problems include:
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EGR System Problems: The Exhaust Gas Recirculation (EGR) system is prone to clogging and causing performance issues.
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Injector Issues: Fuel injectors can fail, leading to rough running and reduced power.
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Turbocharger Problems: The turbocharger can experience wear and tear, affecting performance.
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Oil Cooler Issues: Failure of the oil cooler can lead to serious engine damage.
These potential problems highlight the importance of a thorough inspection and a focus on the engine's maintenance history before purchasing.
How Can I Tell if a Used 6.7 Cummins Engine is Reliable?
The reliability of a used 6.7 Cummins engine hinges on its previous maintenance and overall condition. A thorough inspection, including compression and leakdown tests, alongside detailed maintenance records, significantly reduces the risk of buying an unreliable engine. Don't hesitate to seek professional advice from a mechanic if you lack the expertise to perform a comprehensive inspection yourself.
Are Remanufactured 6.7 Cummins Engines a Better Option?
Remanufactured engines offer a middle ground between buying new and used. They are rebuilt to factory specifications, often with warranties, providing a degree of certainty about their quality and performance. However, remanufactured engines usually cost more than used engines.
Buying a used 6.7 Cummins engine can be a rewarding experience, providing significant cost savings compared to a new engine. However, remember to carefully evaluate the engine's condition and history to ensure a reliable and long-lasting investment. Due diligence and a thorough inspection are key to finding the right engine for your needs.
