2021 FORD F-450 transmission

At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
You may notice a reduction in vehicle
speed caused by reduced engine power in
order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, grade and ambient
temperature. If this occurs, there is no
need to pull off the road. You can continue
to drive your vehicle.
The air conditioning may turn on and off
during severe operating conditions to
protect the engine from overheating. When
the coolant temperature decreases to the
normal operating temperature, the air
conditioning turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following:
1. Pull off the road as soon as safely
possible and shift the transmission into
park (P).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. After
several minutes, if the temperature
does not drop, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue. AUTOMATIC TRANSMISSION
FLUID CHECK
Note:
Transmission fluid should be checked
by an authorized dealer. If required, fluid
should be added by an authorized dealer.
The automatic transmission does not have
a transmission fluid dipstick.
Have an authorized dealer check and
change the transmission fluid and filter at
the correct service interval. See your
scheduled maintenance information. Your
transmission does not consume fluid.
However, the fluid level should be checked
if the transmission is not working properly,
(i.e., if the transmission slips or shifts
slowly) or if you notice some sign of fluid
leakage.
Do not use supplemental transmission
fluid additives, treatments or cleaning
agents. The use of these materials may
affect transmission operation and result
in damage to internal transmission
components.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Maintenance

WARNING: To help prevent your
vehicle from moving when changing a
wheel, shift the transmission into park
(P), set the parking brake and use an
appropriate block or wheel chock to
secure the wheel diagonally opposite to
the wheel being changed. For example,
when changing the front left wheel,
place an appropriate block or wheel
chock on the right rear wheel. WARNING:
Always use the jack
provided as original equipment with your
vehicle. If using a jack other than the one
provided, make sure the jack capacity is
adequate for the vehicle weight,
including any vehicle cargo or
modifications. If you are unsure if the jack
capacity is adequate, contact the
authorized dealer. WARNING:
Failure to follow these
guidelines could result in an increased
risk of loss of vehicle control, injury or
death. WARNING:
Never place anything
between the vehicle jack and your
vehicle. WARNING:
Never place anything
between the vehicle jack and the ground. WARNING:
Park your vehicle so
that you do not obstruct the flow of
traffic or place yourself in any danger and
set up a warning triangle. WARNING:
Do not work on your
vehicle when the jack is the only support
as your vehicle could slip off the jack.
Failure to follow this instruction could
result in personal injury or death. WARNING:
Do not get under a
vehicle that is only supported by a
vehicle jack. WARNING:
Do not attempt to
change a tire on the side of the vehicle
close to moving traffic. Pull far enough
off the road to avoid the danger of being
hit when operating the jack or changing
the wheel. WARNING:
Only use the spare
wheel carrier to stow the wheel provided
with your vehicle. Other wheel sizes
could cause the spare wheel carrier to
fail if it does not fit securely or is too
heavy.
Note: Do not use impact tools or power
tools operating at over 200 RPM on the
spare wheel carrier winch, which may cause
it to malfunction and prevent a secure fit.
Override the winch at least three times
(there is an audible click each time) to make
sure the wheel and tire fit securely.
Note: Passengers should not remain in the
vehicle when the vehicle is being jacked.
1. Park the vehicle on a level firm ground and activate the hazard flashers.
2. Apply the parking brake, place the transmission in park (P), switch the
engine off.
3. Block the wheel diagonally opposite the flat tire. For example, if the left
front tire is flat, block the right rear
wheel.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Wheels and Tires

Drivebelt Routing
Single Alternator
Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B Dual Alternator Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B
MOTORCRAFT PARTS - 6.2L Motorcraft Part number
Component
FA-1950
Air filter element.
BXT-65-650
Battery (XL).
BXT-65-750
Battery (all except XL).
FP-79
Cabin air filter.
FL-820-S
Engine oil filter. 1
SP-526
Spark plugs. 2
FT-188
Six-speed automatic transmission fluid
filter (6R100).
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and SpecificationsE305075 E298579

Motorcraft Part number
Component
FT-221
Ten-speed automatic transmission fluid
filter (10R140).
WW-2248
Windshield wiper blades.
1 If a Motorcraft® oil filter is not available, use an oil filter that meets industry performance
specification SAE/USCAR-36/USC-D.
2 For spark plug replacement, contact your authorized dealer. Replace the spark plugs at
the recommended intervals. See Normal Scheduled Maintenance (page 568).
We recommend Motorcraft® parts that are available at your authorized dealer or at
www.fordparts.com. These parts are engineered for your vehicle, and meet or exceed our
specifications. Use of other parts could impact vehicle performance, emissions and
durability. Your warranty could be void for any damage related to use of other parts.
444
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and Specifications

MOTORCRAFT PARTS - 6.7L DIESEL
Motorcraft Part number
Component
FA-1951
Air filter.
FA-1952
Foam pre-filter.
BXT-65-750
Battery (two required).
FP-79
Cabin air filter.
FL-2051-S
Engine oil filter. 1
FD-4631
Fuel filter.
FT-221
Ten-speed automatic transmission fluid
filter (10R140).
WW-2248
Windshield wiper blades.
1 If a Motorcraft® oil filter is not available, use an oil filter that meets industry performance
specification SAE/USCAR-36/USC-D.
We recommend Motorcraft® parts that are available at your authorized dealer or at
www.fordparts.com. These parts are engineered for your vehicle, and meet or exceed our
specifications. Use of other parts could impact vehicle performance, emissions and
durability. Your warranty could be void for any damage related to use of other parts.
445
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and Specifications

MOTORCRAFT PARTS - 7.3L
Motorcraft Part Number
Component
FA-1950
Air filter element.
BXT-65-750
Battery.
FP-79
Cabin air filter.
FL-820-S
Engine oil filter. 1
SP-589
Spark plugs.
FT-221
Ten-speed automatic transmission fluid
filter (10R140).
WW-2248
Windshield wiper blades.
1 If a Motorcraft® oil filter is not available, use an oil filter that meets industry performance
specification SAE/USCAR-36.
We recommend Motorcraft parts that are available at your authorized dealer or at
www.fordparts.com. We engineer these parts for your vehicle to meet or exceed our
specifications. Use of other parts could impact vehicle performance, emissions and
durability. Your warranty could be void for any damage related to use of other parts.
446
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and Specifications

AIR CONDITIONING SYSTEM
CAPACITY AND
SPECIFICATION - 6.2L
WARNING: The air conditioning
refrigerant system contains refrigerant
under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening the air conditioning refrigerant system
can cause personal injury.
Use refrigerant and oil that meets the
defined specifications.
If you do not use refrigerant and oil that
meets the defined specifications, it could
result in:
• Component damage that your vehicle
warranty does not cover.
• Reduced vehicle performance.
Capacities Refrigerant Oil
Refrigerant
Variant
4.1 fl oz (120 ml)
27 oz (0.765 kg)
With six-speed automatic
transmission.
3.7 fl oz (110 ml)
27 oz (0.765 kg)
With ten-speed automatic
transmission.
Materials Specification
Name
WSH-M17B19-A
Motorcraft® R-134a Refrigerant(U.S.)
R-134a Refrigerant / Frigorigène R-134a(Canada)
YN-19(U.S.)
CYN-19-R(Canada)
WSH-M1C231-B
Motorcraft® PAG Refrigerant Compressor Oil(U.S.)
Motorcraft® PAG Refrigerant Compressor Oil / Huile
PAG pour compresseur frigorifique Motor-
craft®(Canada)
YN-12-D(U.S. & Canada)
459
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and Specifications

AUTOMATIC TRANSMISSION
FLUID CAPACITY AND
SPECIFICATION - DIESEL
Use fluid that meets the defined
specification.
If you do not use fluid that meets the
defined specification, it could result in:
•
Component damage that your vehicle
warranty does not cover.
• Reduced vehicle performance.
Note: Only use MERCON ULV transmission
fluid for automatic transmissions that
require MERCON ULV transmission fluid.
The use of any other fluid could cause
transmission damage.
Capacities Quantity
Variant
18.1 qt (17.1 L)1
All.
1 Approximate dry fill capacity. Actual amount could vary during fluid changes.
Materials Specification
Name
WSS-M2C949-A, MERCON® ULV
Motorcraft® MERCON® ULV Automatic Transmis-
sion Fluid(U.S.)
Motorcraft® MERCON® ULV Automatic Transmis-
sion Fluid / MERCON® ULV huile pour boîtes auto-
matique Motorcraft®(Canada)
XT-12-QULV(U.S. & Canada)
AUTOMATIC TRANSMISSION
FLUID CAPACITY AND
SPECIFICATION - GASOLINE
Use fluid that meets the defined
specification. If you do not use fluid that meets the
defined specification, it could result in:
•
Component damage that your vehicle
warranty does not cover.
• Reduced vehicle performance.
Six-Speed Automatic
Transmission
Note: Only use MERCON LV transmission
fluid for automatic transmissions that
require MERCON LV transmission fluid. The
use of any other fluid could cause
transmission damage.
463
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Capacities and Specifications