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2021 Ford 6.7L Powerstroke Diesel Buyer’s Guide: Specs, Towing, & More

2021 6.7L Powerstroke Buyer's Guide

2021 6.7L Powerstroke Diesel Truck Specs, Towing Ratings, Performance, and Maintenance Information

One of the most powerful and capable Diesel engines being manufactured for use in heavy duty trucks today is Ford’s 6.7L V-8 Powerstroke engine. It is the premier powertrain choice in Ford Superduty Trucks and Cab & Chassis trucks. 2021 Ford Superduty Trucks, Ford F-250, F-350, and F-450s, have 475 horsepower and 1050 lb-ft of torque when mated to the 6.7L Powerstroke V-8 Diesel engine and the 10R140 10-Speed automatic transmission. These incredible performance numbers help deliver serious towing capabilities and plenty of power for passing. This powertrain doesn’t come cheap however, costing thousands of dollars more than the standard 6.2L V8 gasoline-powered engine, or even Ford’s new Godzilla 7.3L V-8 gasoline-powered engine.

Depending on how you plan on using the 2021 Ford Superduty you are considering buying, you might not need the 6.7L Powerstroke engine. Even if you have decided to purchase the 6.7L Powerstroke (We highly recommend it), you also have a ton of different options. Should you go with a single rear-wheel (SRW) Ford F-250, or should you go all out with the Ford F-450 Dually. In this post, our 2021 Ford 6.7L Powerstroke Buyer’s Guide, we’ll compare the different Superduty trucks when equipped with a 6.7L Diesel engine side-by-side. We’ll give your 2021 Ford 6.7L Powerstroke V-8 Engine specs, performance information, Towing Ratings, and even tell you the required maintenance needed on these vehicles. Let’s get into it.

2021 Ford Superduty 6.7L Powerstroke
Picture Taken from Ford Media Website

There are a number of different trims, feature packages, and other factors that will play a role in your decision too. Visit our 2021 Ford Superduty Buyer’s Guide for more information on interior and exterior specs, technology insight, and package overviews on these trucks.

2021 Ford 6.7L Powerstroke V-8 Diesel Engine

Since the 6.7L Powerstroke V-8 Diesel engine was introduced in 2011, it’s been a staple in Ford Superduty Trucks. It replaced the problematic 6.4L Powerstroke that was the last International Navistar made motor used in Ford Diesel trucks. It’s been so successful that even 10 years later, it is still being used by Ford. The 6.7l Powerstroke is far from the same engine it was 10 years ago though. It’s been improved upon, and 2021 Superduty trucks use the third generation 6.7L Powerstroke engine. In our next section we go further into detail about this engine and its design.

6.7L Powerstroke Engine Design & Features

The 6.7L Powerstroke engine is a diesel, 90-Degree 8-cylinder engine that features an OHV, or Overhead Valve design. It offers drivers the best of durability and performance using the latest technology and materials. It is also significantly quieter than previous Ford diesel engines.

For a strong foundation, the 6.7L Powerstroke uses a Compacted Graphite Iron block. CGI blocks offer great durability while simultaneously being significantly lighter. This feature paired with other engine design elements like Aluminum cylinder heads reduce overall engine weight. These, along with other engine design elements and the Superduty’s aluminum body paneling contribute to better fuel efficiency. When compared to previous iterations of Ford’s 6.7L Powerstroke engine, the third generation features a number of structural enhancements to handle the tremendous capabilities of these engines. The Cylinder head, engine block, connecting rods, and bearings offer greater reliability and the ability to withstand greater cylinder pressures and the extra output. New steel pistons are also used in these engines for higher firing pressure and lower friction.

Performance

2021 Ford Pickup trucks with the 6.7L Powerstroke Diesel engine offer a segment high 475 horsepower and 1,050 lb-ft of torque from the factory. Previous numbers only attainable by diesel tuning and other diesel performance mods, these numbers are more than enough for most owners. Throttle response while driving empty, loaded with cargo, or while towing a heavy trailer is impressive. Thanks to the truck’s lightweight body, and weight-saving engine design, fuel economy is also incredible. Previously ignored on diesel trucks, there is another element that qualifies as a performance characteristic, quietness. Thanks to the latest technology, these engines are as quiet as they are capable.

There are a couple of 6.7L Powerstroke features that make the greatest impact when it comes to these engines performance, efficiency, and quietness. The third generation 6.7L Powerstroke utilizes a new fuel injection system with new injectors. These injectors reduce noise and improve combustion by offering up to 8 injection events per stroke and more precise fuel spray. A highly-advanced, electronically-actuated Variable Geometry Turbocharger also gives owners ideal performance characteristics.

6.7l Powerstroke Diesel Engine
Third Generation 6.7L Powerstroke Engine. Photo taken from Ford Media Website.

2021 Ford 6.7L Powerstroke Specs

Year:2021
Configuration:90-Degree Diesel V8
Displacement:6.7 Liters or 406 cubic inches
Bore:3.897 inches or 99 mm
Stroke:4.251 inches or 108 mm
Cylinder Head:Cast Aluminum
Engine Block:Compacted Graphite Iron or CGI
Firing Order: 1-3-7-2-6-5-4-8
Compression Ratio:15.8:1
Fuel Injection:High Pressure Common Rail
TurboCharger:Variable Geometry Turbocharger (VGT)
Valve Operation:pushrod/rocker arms, 4 valves per cylinder
Transmission(s):TorqShift 10R140 Automatic 10-Speed Transmission
Engine Oil Capacity:13 Quarts or 12.4 Liters
Cooling System:Pressurized Series Flow
Emissions Devices:Diesel Oxidation Catalyst (DOC)
Diesel Particulate Filter (DPF)
Selective Catalytic Reduction (SCR)
Exhaust Gas Recirculation (EGR)
Fuel:B20 Biodiesel Compatible &
Ultra Low Sulfur Diesel
Horsepower:475 Horsepower @ 2,600 rpm
Torque:1,050 lb-ft @1,600 rpm

6.7L Powerstroke V-8 Vs. 6.2L Gas Powered V-8 Vs. 7.3L Gas Powered V-8

There are three distinct powertrain choices for the 2021 Ford Super Duty Pickup truck. The base model is a 6.2L V-8 engine offering the lowest performance figures but it’s a simple, rugged workhorse that makes a great fleet vehicle. The middle option is a newer, 7.3L “Godzilla” V-8. No, it’s not the 7.3L Powerstroke we all know and love, but it offers greater performance than the 6.2L V-8 while also being a non-complicated motor that is durable. This is another great option for fleets or for those wanting better performance than the base 6.2 V-8 offers. The third and last option is the 6.7L Powerstroke. This is the premier choice for haulers and people who need serious capability. The 6.7l Powerstroke is a Diesel engine that has made a name for itself in the last 10 years as being one of the most powerful and reliable diesels around.

For a full comparison of how these engines compare against each other, look at the chart below. You can compare critical engine design information as well as performance specs.

2021 Superduty Powertrain Side-By-Side Comparison

Powertrain6.7L Powerstroke
Diesel
6.2L Gas 7.3L Gas “Godzilla”
Displacement6.7 Liters or 406 Cubic Inches6.2 Liters or 379 Cubic Inches7.3 Liters or 445 cubic inches
Configuration90-Degree V8 Diesel
In-Block Cams, OHV
90-Degree V8
Single overhead Cams
90-Degree V8
Single in-Block Cams
Engine BlockCompacted Graphite ironCast IronCast Iron
Cylinder HeadAluminumAluminumAluminum
Bore3.9″4.02″4.22″
Stroke4.25″3.74″3.98″
Compression Ratio15.8:19.8:110.5:1
Valvetrain4 valves per cylinder
Pushrod and Rocker Arms
2 Valves per cylinder,
roller rocker shaft
2 valves per cylinder,
pushrod and rocker arms
Fuel TypeUltra Low Sulfur Diesel87 Octane87 Octane
Fuel SystemsHigh-Pressure Common RailSequential Multi-Port
Electronic
Sequential Multi-Port
Electronic
AspirationVariable Geometry Turbo,
Charged air cooler
Naturally AspiratedNaturally Aspirated
Horsepower475 @ 2,600 rpm385 @ 5,750 rpm430 @ 5,500 rpm
Torque1,050 @ 1,600 rpm430 lb-ft @ 3,800 rpm475 lb-ft @ 4,000 rpm
Fuel Tank SizeRegular Cab: 29 Gallons
Super Cab: 29 or 34 Gallons
Crew Cab: 34 or 48 Gallons
Regular Cab: 34 Gallons
Super Cab: 34 Gallons
Crew Cab: 34 or 48 Gallons
Regular Cab: 34 Gallons
Super Cab: 34 Gallons
Crew Cab: 34 or 48 Gallons
Max Conventional
Towing***
24,200 lbs16,700 Lbs21,000 lbs
Max Gooseneck/
5th-Wheel Towing***
37,000 lbs16,700 lbs21,200 lbs
*** Towing Varies across models and trims. Max towing figures are the highest available amongst 2021 model year Ford Superduty Trucks. Your truck’s actual max tow capacity may vary. Check your owner’s manual for more info.

2021 6.7L Powerstroke Towing

The 2021 6.7L V-8 Powerstroke engine is built in-house, and these motors when used in 2021 Ford F-250, F-350, and F-450 Superduty trucks produce 475 horsepower and 1,050 ft-lbs of torque. This along with structural and suspension upgrades, allow 2021 Ford Superduty Trucks to tow a maximum of 37,000 lbs. Tow capacity is affected by number of different factors however, so we decided to create the follow chart. In our 2021 6.7L Powerstroke towing guide, we’ll cover tow ratings for conventional towing and fifth-wheel/gooseneck towing.

2021 Ford F-450 6.7L Powerstroke Towing
2021 Ford F-450 with the 6.7L Powerstroke Diesel engine Towing a trailer. Picture taken from Ford Media Website.

Regular Cab Towing Specs

Regular-Cab-6-7l-powerstroke-towing-specs
For maximum utility, tow capacity, and payload the regular cab is the way to go. If you take a look at the numbers below, the regular cab Ford Superduty with the 6.7L Powerstroke Diesel engine offers the highest tow capacity compared to Supercab or Crew Cab configurations. It lacks the space for more passengers however and these trucks don’t come available in higher trim levels like the Limited or Platinum. These are best used as work vehicles.

Max Conventional Towing Capacity

Rear AxleAxle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4F-450 4×2F-450 4×4
SRW3.3123,500 lbs15,000 lbs15,000 lbsN/AN/AN/AN/A
SRW3.3130,000 lbs15,200 lbs15,000 lbs15,000 lbs15,000 lbsN/AN/A
SRW3.5530,000 lbs15,200 lbs15,000 lbs15,000 lbs15,000 lbsN/AN/A
DRW3.5540,000 lbsN/AN/A21,000 lbs20,000 lbsN/AN/A
DRW4.143,400 lbsN/AN/A21,000 lbs20,000 lbsN/AN/A
DRW4.345,300 lbsN/AN/AN/AN/A21,200 lbs21,200 lbs
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

Max Fifth-Wheel/Gooseneck Towing Capacity

Rear
Axle
Axle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4F-450 4×2F-450 4×4
SRW3.3123,500 lbs16,400 lbs16,000 lbsN/AN/AN/AN/A
SRW3.3130,000 lbs22,800 lbs21,800 lbs22,800 lbs22,400 lbsN/AN/A
SRW3.5530,000 lbs22,800 lbs21,800 lbs22,800 lbs22,400 lbsN/AN/A
DRW3.5540,000 lbsN/AN/A32,400 lbs32,000 lbsN/AN/A
DRW4.143,400 lbsN/AN/A35,750 lbs35,400 lbsN/AN/A
DRW4.345,300 lbsN/AN/AN/AN/A37,000 lbs36,400 lbs
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

SuperCab Towing Specs

2021 6.7L Powerstroke Supercab Towing Specs
The SuperCab configuration offers a compromise on both ends. The back seat still allows for rear passengers, just with less legroom than a full crew cab. The smaller cabin does result in slightly higher towing capacity and payloads however. Unfortunately, the F-450 isn’t made in this configuration. It is a great compromise and option for fleet vehicles.

Max Conventional Towing Capacity

Rear AxleAxle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4
SRW3.3123,500 lbs15,000 lbs15,000 lbsN/AN/A
SRW3.3130,000 lbs15,200 lbs20,000 lbs15,000 lbs20,000 lbs
SRW3.5530,000 lbs15,200 lbs20,000 lbs15,000 lbs20,000 lbs
DRW3.5540,000 lbsN/AN/A21,200 lbs21,200 lbs
DRW4.143,400 lbsN/AN/A21,200 lbs21,200 lbs
DRW4.343,500 lbsN/AN/AN/AN/A
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

Max Fifth-Wheel/Gooseneck Towing Capacity

Rear
Axle
Axle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4
SRW3.3123,500 lbs16,200 lbs15,500 lbsN/AN/A
SRW3.3130,000 lbs22,000 lbs20,100 lbs22,600 lbs22,400 lbs
SRW3.5530,000 lbs22,000 lbs20,100 lbs22,600 lbs22,400 lbs
DRW3.5540,000 lbsN/AN/A32,000 lbs31,600 lbs
DRW4.143,400 lbsN/AN/A35,400 lbs35,000 lbs
DRW4.345,300 lbsN/AN/AN/AN/A
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

Crew Cab Towing Specs

2021 6.7L Powerstroke Crew Cab Towing Capacity
Crew Cab configurations offer greater inside comfort, more room for passengers and interior storage space. This extra weight and interior cargo space results in a reduction in towing capacity and payload however.

Max Conventional Towing Capacity

Rear
Axle
Axle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4F-450 4×2F-450 4×4
SRW3.3123,500 lbs15,000 lbs15,000 lbsN/AN/AN/AN/A
SRW3.3130,000 lbs18,200 lbs20,000 lbs18,200 lbs20,000 lbsN/AN/A
SRW3.5530,000 lbs18,200 lbs20,000 lbs18,200 lbs20,000 lbsN/AN/A
DRW3.5540,000 lbsN/AN/A21,200 lbs21,200 lbsN/AN/A
DRW4.143,400 lbsN/AN/A21,200 lbs21,200 lbsN/AN/A
DRW4.345,300 lbsN/AN/AN/AN/A24,200 lbs24,200 lbs
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

Max Fifth-Wheel/Gooseneck Towing Capacity

Rear
Axle
Axle RatioMax GCWRF-250 4×2F-250 4×4F-350 4×2F-350 4×4F-450 4×2F-450 4×4
SRW3.3123,500 lbs16,100 lbs14,700 lbsN/AN/AN/AN/A
SRW3.3130,000 lbs21,700 lbs19,100 lbs22,400 lbs22,000 lbsN/AN/A
SRW3.5530,000 lbs21,700 lbs19,100 lbs22,400 lbs22,000 lbsN/AN/A
DRW3.5540,000 lbsN/AN/A31,800 lbs31,300 lbsN/AN/A
DRW4.143,400 lbsN/AN/A35,200 lbs34,700 lbsN/AN/A
DRW4.345,300 lbsN/AN/AN/AN/A34,600 lbs32,600 lbs
** Check your owner’s manual for more detailed towing information. Actual tow capacity will vary.

Different 6.7L Powerstrokes for Different Needs

2021 F-Series Super Duty

2021 Ford Superduty F-250

2021 Ford F-250 6.7L Powerstroke
2021 Ford F-250 6.7L Powerstroke

Ford’s F-250 is the entry level Super duty, offering the lowest towing capabilities, but the best drivability. It comes in the XL, XLT, Lariat, Limited, Platinum, and King Ranch Trims. A newer, Tremor Off-Road Edition is also available offering superior off-road performance. This is attributed to an upgraded suspension including a factory installed lift kit and 35″ Tires.

Capabilities

The 2021 Ford F-250 is the lightest duty truck available with the 6.7L Powerstroke V-8 Diesel. For infrequent towers, and daily drivers the F-250 is your ideal choice. 2021 Ford F-250 pickup trucks with the 6.7L Powerstroke engine have a max conventional tow capacity of 20,000 lbs and a max fifth-wheel/Gooseneck tow capacity of 22,800 lbs . These trucks only come in a single rear-wheel configuration so they’re much lighter than the F-350 or F-450 pickup trucks with dual rear wheels. This lesser weight translates to savings at the pump and less maintenance because you only have to worry about 4 tires, instead of 6 with a dually.

Pricing

Pricing for 2021 Ford F-250s starts at around $46,420 when configured in a base XL trim with 2WD and the 6.7L Powerstroke Engine. The Diesel engine upgrade is a $10,495 upgrade itself. With higher trim, driveline and other configurations the price will go up. Fully decked out Limited packages can exceed $90,000. These of course are MSRP figures and depending on when you buy, you might be able to get rebates that can reduce the price by thousands of dollars. Want to see what rebates are available? Check out our 2021 Superduty Buyer’s Guide for rebate information.

2021 Ford F-250 6.7L Powerstroke Summary Chart

Ford F-250 Superduty /w 6.7L Powerstroke Engine2021
Horsepower475 Horsepower @ 2,600 rpm
Torque1,050 lb-ft @ 1,600 rpm
Transmission OptionsTorqShift Select-Shift 10-Speed Automatic Transmission
Trim OptionsXL, XLT, Lariat, King Ranch, Platinum, Limited, Tremor
Rear Axle ConfigurationsSingle Rear-Wheel
Gear Ratios3.31 or 3.55
Fuel Tank Capacity
142″ and 148″ Wheelbase
160″ & 164″ Wheelbase
178″ Wheelbase
See Below
29 Gallons
34 Gallons
48 Gallons
Max Conventional Tow Capacity
SRW
See Below
20,000 lbs
Max Fifth-Wheel/Gooseneck Capacity
SRW
See Below
22,800 lbs
Max Payload
SRW
See Below
4,500 lbs
Ford F-250 Pricing Starts At$35,745

Ford Superduty F-350

2021 Ford F-350 Superduty with the 6.7L Powerstroke Diesel engine.

The Middle-Man of the Superduty lineup is the F-350 pickup truck. Ford’s F-350 offers a little more heavy-duty composition and ruggedness than F-250 pickups. It suffers from slightly stiffer ride quality while unloaded, but it more than makes up for it when it comes to towing and payload. In fact, the Dual Rear-Wheel F-350 has the highest payload figures of the three Super Duty pickups.

Capabilities

Ford’s F-350 has a significant advantage over the F-250 when it comes to towing. It is available in a Dual Rear-Wheel Configuration, commonly known as a Dually. This Rear Axle configuration overs significantly better payload and towing capabilities. It also results in lower fuel economy and higher maintenance costs however. We advise that you seriously consider what you are going to use your truck for. If you are going to be towing frequently the Dually configuration is a better choice. If not, the SRW configuration is the way to go.

Max conventional tow capacity for SRW Ford F-350 pickup trucks with the 6.7L Powerstroke is 20,000 lbs. DRW (Dually) variants have a maximum conventional tow capacity 21,200 lbs. Max Fifth-Wheel/Gooseneck towing capacity is 22,800 lbs on SRW models, and 35,750 lbs on DRW models. This makes the Dually the ideal choice for people towing fifth-wheel campers or gooseneck trailers.

Pricing

Ford F-350 pricing starts at $37,440. This is with the base 6.2L V-8 gasoline engine. The 6.7L Powerstroke diesel V-8 engine is a $10,495 upgrade. Ford F-350 Limited Pricing starts at $87,060 and can exceed $90,000 with options and add-ons.

2021 Ford F-350 6.7L Powerstroke Summary Chart

Ford F-350 Superduty /w 6.7L Powerstroke Engine2021
Horsepower475 Horsepower @ 2,600 rpm
Torque1,050 lb-ft @ 1,600 rpm
Transmission OptionsTorqShift Select-Shift 10-Speed Automatic Transmission
Trim OptionsXL, XLT, Lariat, King Ranch, Platinum, Limited, Tremor
Rear Axle ConfigurationsSingle Rear-Wheel and Dual Rear-Wheel
Gear Ratios3.31, 3.55, or 4.1
Fuel Tank Capacity
142″ and 148″ Wheelbase
160″ & 164″ Wheelbase
178″ Wheelbase
See Below
29 Gallons
34 Gallons
48 Gallons
Max Conventional Tow Capacity**
SRW
DRW
See Below
20,000 lbs
21,200 lbs
Max Fifth-Wheel/Gooseneck Capacity**
SRW
DRW
See Below
22,800 lbs
35,750 lbs
Max Payload**
SRW
DRW
See Below
4,960 lbs
7,850 lbs
Ford F-350 Pricing Starts At$37,440
Actual towing and payload figures may vary. Check your owners manual for more particular towing capacity figures.

Ford Superduty F-450

2021 Ford F-450

For people needing the greatest towing capabilities, the Ford F-450 is your ideal solution. The F-450 offers the greatest durability and capabilities of any Ford pickup truck. They’re perfect for people who tow frequent, heavy loads. They are only available in a dual rear wheel configuration (Dually). Therefore, they are heavy and not ideal for commuting unloaded. Unlike the Ford F-250 or F-350, the F-450 comes standard with the 6.7L Powerstroke Engine. That is a major reason for its higher starting price.

Capabilities

While performance figures remain the same, towing figures are greatly improved upon with the F-450. Max Conventional tow capacity for a 2021 Ford F-450 with the 6.7L Powerstroke engine is 24,200 pounds. Max fifth-wheel/Gooseneck tow capacity is 37,000 pounds. Surprisingly, max payload is actually better on F-350 models than the F-450. If you need the higher payload capabilities, stick with the F-350. That being said, the F-450 will do a better job when it comes to durability, and towing heavy loads. If you’re going to be pulling a huge fifth-wheel or gooseneck trailer, the F-450 should garner some serious consideration.

Pricing

Thanks to a standard 6.7L Powerstroke Engine in every F-450, starting pricing on 2021 Ford F-450s is much higher. Base XL models in a regular cab configuration cost $50,410 before any additional upgrades. A fully decked out F-450 can exceed $90,000.

Ford F-350 Superduty /w 6.7L Powerstroke Engine2021
Horsepower475 Horsepower @ 2,600 rpm
Torque1,050 lb-ft @ 1,600 rpm
Transmission OptionsTorqShift Select-Shift 10-Speed Automatic Transmission
Trim OptionsXL, XLT, Lariat, King Ranch, Platinum, Limited, Tremor
Rear Axle ConfigurationsSingle Rear-Wheel and Dual Rear-Wheel
Gear Ratios4.3
Fuel Tank Capacity
142″ and 148″ Wheelbase
160″ & 164″ Wheelbase
178″ Wheelbase
See Below
29 Gallons
34 Gallons
48 Gallons
Max Conventional Tow Capacity24,200 lbs
Max Fifth-Wheel/Gooseneck Capacity37,000 lbs
Max Payload6,210 lbs
Ford F-450 Pricing Starts At$50,410

2021 6.7L Powerstroke Maintenance

If you’re going to own a 2021 Ford Super Duty with the 6.7L Powerstroke diesel V-8 engine, you better be aware of the required maintenance that these trucks require. To help prospective buyers, we’ve accumulated all of the most critical 2021 6.7L Powerstroke maintenance information. Down below, we’ll go over the required service intervals, fluid capacities, and even a list of the oil, fluids, and filters you’re going to need!

Service Intervals

2021 6.7L Powerstroke service intervals are going to depend significantly on how you use your vehicle. If you use your vehicle mostly for commuting and occasionally tow lighter loads, you should be just fine with the regular operating conditions service schedule. Your vehicle comes equipped with intelligent oil life monitoring, and it should reflect these driving habits. On the other hand, if you tow very heavy loads frequently, use your vehicle as part of a fleet or commercial vehicle, or if you idle excessively you will need to follow the severe operating conditions service schedule. This will help make sure your vehicle and its Powerstroke engine last as long as possible.

Monthly Maintenance Checklist

  • Check Air Filter Restriction Gauge. Replace if needed.
  • Take a look at engine oil level. Make sure engine oil stays in the recommended range.
  • Check Tire Pressure in all tires, even the spare.
  • Add windshield wiper fluid if needed.
  • Check Fuel/Water separator and drain it if needed.

At Every Maintenance Interval, Also:

  • Change Engine oil and oil filter.
  • Drain Water/Fuel Separator.
  • Refill your truck with DEF Fluid.
  • Rotate the tires and inspect them for signs of wear.
  • Inspect the air filter restriction gauge.
  • Inspect Brake pads, shoes, rotors, drums, brake lines, hoses, and the parking brake.
  • Inspect engine primary and secondary cooling systems coolant level and strength.
  • Inspect exhaust system.

Regular Operating Conditions

Service TasksMiles/KM or Period of Time
Replace Engine Oil & Oil Filter7,500-10,000 miles or as
as displayed by Intelligent Oil
Life Monitoring System
(12,000-16,000 km)
Replace Fuel Filter(s)30,000 miles or 48,000 km
Drain Water/Fuel Separator7,500-10,000 miles or 12,000-16,000 km
Change the Cabin Air Filter20,000 miles or 32,000 km
Replace Engine Air Filter30,000 miles or 48,000 km
Replace Engine Air Inlet Foam Filter50,000 miles or 80,467 km
Inspect Drive Belts90,000 miles or 144,000 km
Replace Drive Belts150,000 miles or 240,000 km
Change Automatic Transmission Fluid And Filter150,000 miles or 240,000 km
Replace Front Wheel Bearing Grease & Grease Seal(2WD Models)60,000 miles or 96,000 km
Replace two front wheel bearings & Seals (2WD Models)150,000 miles or 240,000 km
Change Front & Rear Axle Fluid150,000 miles or 240,000 km
Drain & Re-Fill Transfer Case Fluid150,000 miles or 240,000 km
Change Primary and Secondary Cooling System CoolantFirst Service at 200,000 miles or 320,000 km. After that, every 5 years or 100,000 miles.
Check Engine Coolant Level and Condition30,000 miles or 48,000 km
Change Brake FluidEvery 3 years

Severe Operating Conditions

Service TasksMiles/KM or Period of Time
Replace Engine Oil & Oil Filter2,500-7,500 miles or as
as displayed by Intelligent Oil
Life Monitoring System
(4,000-12,000 km)
Replace Fuel Filter(s)15,000 miles or 24,000 km
Drain Water/Fuel Separator2,500-7,500 miles or 4,000-12,000 km
Change the Cabin Air Filter20,000 miles or 32,000 km
Replace Engine Air Filter30,000 miles or 48,000 km
Replace Engine Air Inlet Foam Filter30,000 miles or 48,000 km
Inspect Drive Belts90,000 miles or 144,000 km
Replace Drive Belts150,000 miles or 240,000 km
Change Automatic Transmission Fluid And Filter150,000 miles or 240,000 km
Replace Front Wheel Bearing Grease & Grease Seal(2WD Models)30,000 miles or 48,000 km
Replace two front wheel bearings & Seals (2WD Models)150,000 miles or 240,000 km
Change Front & Rear Axle Fluid50,000 miles or 80,000 km
Drain & Re-Fill Transfer Case Fluid50,000 miles or 80,000 km
Change Primary and Secondary Cooling System Coolant60,000 miles or 96,000 km
Check Engine Coolant Level and Condition30,000 miles or 48,000 km
Change Brake FluidEvery 3 years

2021 6.7L Powerstroke Fluid Capacity

Fluid TypeQuartsLiters
Engine Oil /w Filter13 Quarts12.3 Liters
Cooling System (Primary Circuit)31.7 Quarts30 Liters
Cooling System (Secondary Circuit)8.1 Quarts7.7 Liters
Brake FluidFill as RequiredFill as Required
Automatic Transmission18.1 Quarts17.1 Liters
Transfer Case1.9 Quarts1.8 Liters
Diesel Exhaust Fluid
Pickup
Cab & Chassis
See below
7.4 Gallons
7.2 Gallons
See below
28 Liters
27.3 Liters
Front Axle
4WD without Limited Slip
4WD with Limited Slip*
See Below
2.75 Quarts
2.75 Quarts
See Below
2.6 Liters
2.6 Liters
10.5 Rear Axle
With Electronic Locking Differential
Without Electronic Locking Differential
See Below
3.3-3.5 Quarts
3.5-3.6 Quarts
See Below
3.1-3.3 Liters
3.3-3.4 Liters
10.8 Rear Axle
With Electronic Locking Differential
Without Electronic Locking Differential
3.6 Quarts3.42 Liters
11.8 Rear Axle**3.78 Quarts3.58 Liters
* Requires the addition of 5.4 fl. oz. of Additive Friction Modifier XL3 or equivalent. ** Requires the addition of 7.1 fl. oz. of Additive Friction Modifier.

2021 6.7L Powerstroke Maintenance Parts, Oil, Fluids, and Filters

Part, Oil, Fluid NameSpecification/Link to Purchase
Engine OilMotorcraft SAE 10W-30 Super Duty Diesel Motor Oil
XO-10W30-QSD (Normal Conditions)
Motorcraft SAE 5W-40 Super Duty Diesel Motor Oil
XO-5W40-5Q3SD (Severe Conditions)
Engine Oil FilterMotorcraft FL-2051-S
Brake FluidMotorcraft DOT 4LV High Performance Motor Brake Fluid
PM-20
Front Axle Fluid*Motorcraft SAE 80W-90 Premium Rear Axle Lubricant
XY-80W90-QL
Rear Axle Fluid*
10.5 Axle
10.8 Axle
11.8 Axle *
See Below
Motorcraft SAE 75W-85 XY-75W85-QL
Motorcraft SAE 75W-140 XY-75W140-QL
Motorcraft SAE 75W-140 XY-75W140-QL
Friction ModifierMotorcraft XL-3 Friction Modifier Additive
Engine CoolantMotorcraft Yellow Prediluted AntiFreeze/Coolant VC-13DL-G
Diesel Exhaust FluidMotorcraft Diesel Exhaust Fluid PM-27-GAL
Engine Air FilterMotorcraft FA-1951
Transfer Case FluidMotorcraft Mercon LV Automatic Transmission Fluid XT-10-QLVC
Engine Air Foam Pre-FilterMotorcraft FA-1952
Cabin Air FilterMotorcraft FP-79
Fuel FilterMotorcraft FD-4631
10R140 Ten-Speed Auto Transmission FluidMotorcraft Mercon ULV Automatic Transmission Fluid
XT-12-QULV
10R140 Ten-Speed Auto Transmission FilterMotorcraft FT-221
Battery (2 Required)BXT-65-750
Windshield Wiper BladesMotorcraft WW-2248
* Requires the addition of Motorcraft XL3 Friction Modifier Additive.

Want more Information?

I’ve covered most of the most important information about the latest 6.7L Powerstroke diesel lineup. If you don’t want a diesel powertrain 2021 Superduty, check out this guide instead. Check out some of our other articles about the 6.7L Powerstroke diesel by clicking on one of the bulleted links below. If you’re shopping around for a new diesel, check out our comprehensive 2021 Diesel Buyer’s Guide.

  • 6.7L Powerstroke Specs
  • Best 6.7L Powerstroke Performance Upgrades

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ABOUT Kamil

Founder of Diesel Resource and a complete diesel head. Has a little bit of problem buying too many trucks. Learn more about him by checking out his truck.

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