What is the best year for the Ford 6.7 diesel engine?

The best bet is typically 2015 through 2019 for the Ford 6.7 Power Stroke, with 2016–2018 often cited as especially reliable. Newer 2020–2024 models share the same core engine but benefit from updated electronics; ultimately, the best year depends on maintenance history and what you value—reliability, towing power, or modern tech.

Overview of the Ford 6.7 Power Stroke

Ford’s 6.7L Power Stroke is a heavy‑duty diesel V8 designed for heavy towing and long‑haul capability. Introduced for the 2011 model year, it has gone through multiple updates to improve durability, emissions control, and efficiency. Buyers often weigh reliability, maintenance costs, and parts availability when considering which model year to purchase.

What to Look For When Choosing a Year

When evaluating a used Ford 6.7, you should weigh reliability history, updates to the emissions and fuel systems, maintenance costs, and the availability of service information. The following list highlights the major year‑to‑year differences and what they typically mean in practice.

• 2011–2014: Early generation with strong torque and towing capability, but often cited for teething issues around emissions components and high‑mileage wear in some vehicles. Maintenance history is especially important for these years.


• 2015–2016: Major updates aimed at strengthening internals and improving the aftertreatment system. Reliability tends to be better than the earliest years, with fewer dramatic failures reported when properly serviced.


• 2017–2019: Broadly regarded as the reliability sweet spot by many owners and reviewers. Fewer large, batch‑level issues appear, and overall drivetrain performance remains solid with proper maintenance.


• 2020–2024: The same core engine with updated electronics and ongoing refinement of emissions control. Modern trucks may offer nicer electronics and features, while maintainability remains good if maintenance has been kept up; used‑truck prices can be higher due to newer components and warranties.

In summary, the best year is often a balance between a well‑documented service history and the specific updates you value—reliability, smoother emissions controls, or newer tech. Regardless of year, a thorough inspection and maintenance history are the most important factors.

Year‑by‑Year Trends

2011–2014: The genesis years

These early models established the 6.7’s reputation for strong pulling power, but they also carried more risk of early‑phase emissions system issues and higher maintenance needs. Buyers should prioritize trucks with comprehensive service records and ensure major emission components have been addressed or updated.

• Pros: Excellent torque, solid towing capability, and a robust platform for a heavy‑duty pickup.


• Cons: Greater likelihood of emissions‑related maintenance needs and potential early wear on fuel and cooling components if not serviced properly.


• Maintenance notes: Verify DEF system health, inspect for oil and coolant leaks, and review the history of any turbo or exhaust system service.

Trends from this period emphasize the importance of a careful pre‑purchase inspection and a willingness to budget for potential early‑generation maintenance items.

2015–2016: The reliability upgrade

With updates designed to improve internals and the aftertreatment system, these years typically offer better reliability than the earliest models, while still delivering strong performance. Maintenance records from this window are particularly telling about long‑term durability.

• Pros: Improved reliability over 2011–2014, better fuel economy potential, and more mature emissions handling.


• Cons: Still a diesel with high maintenance needs; expensive repairs can occur if preventive maintenance has been neglected.


• Maintenance notes: Look for completed updates to known weak points, verify service history, and check for consistent oil and filter changes.

For buyers, this window often represents a good balance of modern reliability without the higher price of the latest models.

2017–2019: The consensus reliability peak

Many observers and owner surveys point to 2017–2019 as the peak for reliability within the 6.7 generation, thanks to continued refinements and mature engineering. These years tend to present fewer large‑scale failures and solid overall durability when properly maintained.

• Pros: Broadly favorable reliability, strong performance, and good aftermarket support for maintenance and upgrades.


• Cons: High purchase price relative to older models; maintenance costs remain a consideration for high‑mileage trucks.


• Maintenance notes: Prioritize complete service history, including DEF system health, turbo integrity, and cooling system components.

If you want a proven, well‑rounded truck, 2017–2019 is frequently recommended by buyers and mechanics alike.

2020–2024: The modern baseline

These years carry the same core engine with refinements in electronics, diagnostics, and onboard systems. They can offer advantages in technology and resale value, with a reliable baseline for owners who want updated features alongside durable powertrain performance.

• Pros: Updated electronics, mature aftertreatment control, and strong overall durability with good service availability.


• Cons: Higher initial purchase price for used units; some DEF/DPF systems require consistent maintenance to avoid warning lights or restrictions.


• Maintenance notes: Ensure DEF quality and dosing history is intact, verify recent software updates, and review maintenance history for cooling and fuel systems.

Newer models can provide peace of mind through updated components, but a well‑maintained earlier model can still be a very capable, reliable choice.

Bottom Line: Which year should you buy?

There isn’t a single “best year” for every buyer. If your priority is a proven blend of reliability and value, 2015–2019 is a widely recommended window. If you want the latest electronics and potentially longer factory support, a 2020–2024 model can be appealing—but ensure you’re comfortable with higher purchase prices and verify maintenance history and DEF system upkeep. A comprehensive pre‑purchase inspection and documented service history remain the best indicators of long‑term reliability.

Summary

The Ford 6.7 Power Stroke has earned a strong reputation for durability when well cared for. While 2015–2019 often emerges as the sweet spot for reliability and cost balance, the best choice depends on your priorities and maintenance discipline. Regardless of year, prioritize trucks with complete service records, a history of proper DEF system maintenance, and a thorough pre‑purchase inspection to maximize longevity and value.

What year of 6.7 Power Stroke to avoid?

Turbocharger failures have been a frequent issue with the 2011 and 2012 model year 6.7L Powerstroke equipped pickups. The early-production Honeywell DualBoost turbo's Achilles' heel appeared to be its ceramic bearings. However, these reliability concerns were resolved with the switch to steel ball bearings.

What year is the most reliable 6.7 Power Stroke?

The most reliable 6.7 Powerstroke years are generally considered to be 2017-2019 and 2022-present, with 2015-2016 also being strong contenders due to improvements over the first generation. The 2017-2019 models offer a good balance of power, technology, and reliability, while the 2022+ models feature further refinements like the 10-speed transmission and updated cooling systems. However, some issues like oil pan and CCV filter problems have been noted in specific years, so a pre-purchase inspection is always recommended. 
This video discusses the reliability of different 6.7 Powerstroke generations: 1mFlying WrenchesYouTube · Jan 29, 2025
Reliable years and key improvements 

• 2017–2019: Often cited as a "sweet spot," these models benefit from a more reliable turbo than earlier years and have an aluminum body. They still use a 6-speed transmission, which is well-tested. However, some 2017-2019 models have a non-gasketed oil pan and a CCV filter that can plug up. 
• 2020–2021: While these years introduced the 10-speed transmission, it reportedly had issues. However, they did gain the steel pistons for a stronger bottom end. 
• 2022–Present: Considered the most reliable generation with further improvements to the 10-speed transmission and cooling system. The 2023 models introduced a 9th injector and higher output (HO) options, but some 2022-2023 models still had problems with the 10-speed transmission, according to some sources. Therefore, it is still important to research model-specific issues before purchasing, Facebook. 

Years to approach with caution

• 2011–2014: These years are the first generation and have a less reliable turbocharger with ceramic ball bearings that tend to fail. The CP4 high-pressure fuel pump is also known to be problematic. A common and effective fix is to swap the turbo and fuel pump out for later models. 

This video provides a buyer's guide for the 2011-2014 6.7L Powerstroke: 58sDirty Diesel CustomsYouTube · Nov 9, 2023
General considerations

• Engine block: While the 2011-2014 engine block has a higher failure rate than later generations, the engine block itself is a robust unit and should be considered if properly maintained. 
• Transmission: Ford switched from a 6-speed to a 10-speed transmission between 2019 and 2020. The 6-speed is proven, but the 10-speed requires more maintenance and may have issues if not properly cared for. 
• Overall: Newer is not always better. Always inspect a used truck thoroughly before purchasing, even from the most reliable years. 

What to look for when buying a 6.7 Power Stroke?

When buying a 6.7 Powerstroke, check for fluid leaks, unusual turbo noise, and rough engine performance or hard starts. Also, inspect for a history of major maintenance, a cracked cylinder head, or a failing oil or EGR cooler. 
Engine and performance

• Fluid leaks: Look for oil, coolant, or transmission fluid leaks, especially from the oil pan, valve covers, and crankcase filter housing. 
• Engine sounds: A high-pitched whistle from the turbo is normal, but a squeal or whine could indicate an issue. Listen for rough idle, shaking, or stalling, which can signal problems with injectors, glow plugs, or compression. 
• Cooling system: Check for any coolant leaks or smells. Perform the "head gasket test" by running the engine at full throttle and checking the coolant reservoir cap for coolant spurting out. 
• Exhaust: Look for black soot on the exhaust pipe, which could mean the EGR cooler is clogged. 
• Maintenance history: Ask for maintenance records, particularly to see if filters have been replaced with OEM parts. 

Fuel and emissions

• Injection pump: Be aware that the CP4 injection pump is a known failure point; some owners install a preventative kit. 
• Fuel filters: Check the fuel filters and be prepared to change them with OEM filters. 
• Air filter: Examine the air filter for restriction. Some aftermarket filters can be restricted, so be prepared to replace it with an OEM one. 

Drivetrain and other components

• Transmission: The transmission should shift firmly. Avoid a harsh or delayed shifting feel. 
• Suspension: Check the front suspension for signs of wear, as "death wobble" can occur. Inspect U-joints and look for any leaks from the shocks. 
• Turbo: Listen to the turbo for any unusual noises. 
• Electrical: Test all electronic features, such as heated/cooled seats, backup cameras, and lights. 

Body and frame

• Rust: Inspect the frame and body panels for any signs of excessive rust. 
• Wear and tear: Look for signs of hard use, like a worn-out hitch receiver or bed. A clean exterior and interior can indicate good overall care. 

Professional inspection

• Get an inspection: Before buying, have a trusted diesel mechanic perform a thorough inspection. This could save you from costly repairs later. 
• Review service history: Request a vehicle history report, such as a Carfax report, to check for accident history or other issues. 

What year 6.7 has a bad turbo?

Turbocharger failures were common on 2011 and 2012 model year 6.7L Power Stroke-equipped pickups because of weak ceramic ball bearings. A switch was made to steel ball bearings. Unfortunately, it wasn't enough to keep this turbo in production.