2021 Ford F-450 Super Duty Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

31 Alternator / Generator parts are listed for the 2021 Ford F-450 Super Duty, from TERREPOWER, MOTORCRAFT, FVP and 5 other brands. MOTORCRAFT GL8826 carries the "Popular" badge. New and Remanufactured are all represented, and Remanufactured alone accounts for 19 parts.

This table covers the brackets that mount the Alternator / Generator. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2021 Ford F-450 Super Duty — MOTORCRAFT STP368.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

6 Battery parts for the 2021 Ford F-450 Super Duty come from 6 brands — DEKA, FVP, ACDELCO and 3 other brands. The "Popular" part is DEKA 9A65. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

In the AGM (Extended Life) grade, DEKA, FVP, ACDELCO and 2 other brands supply 5 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A65.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT93065.

Listed part numbers: DEKA 9A65, FVP P65AGM and ACDELCO 65AGMHRC, plus the other parts above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

MOTORCRAFT supplies the 3 Battery Cable parts for the 2021 Ford F-450 Super Duty.

Part numbers include MOTORCRAFT WC97737, MOTORCRAFT WC97593 and MOTORCRAFT WC97595.

This table covers the clamps and brackets that secure the battery. Read more

3 Battery Hold Down parts are listed for the 2021 Ford F-450 Super Duty, from AUTOTECNICA, DORMAN and SKP. All of them fit every engine offered in the 2021 F-450 Super Duty.

Part numbers include AUTOTECNICA FD0820716, DORMAN 60330 and SKP SK60330.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

16 Battery Terminal parts for the 2021 Ford F-450 Super Duty come from MOTORCRAFT. The "Popular" part is MOTORCRAFT WT1002. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

13 Circuit Breaker parts for the 2021 Ford F-450 Super Duty come from MOTORCRAFT. The "Popular" part is MOTORCRAFT SW8879. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

This table covers the brackets that mount the Engine Control Module (ECM Computer). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2021 Ford F-450 Super Duty — MOTORCRAFT ECMB7.

This table covers the fuse blocks that hold this vehicle's fuses. Read more

5 Fuse Block parts are listed for the 2021 Ford F-450 Super Duty, from DORMAN and BUSSMANN. 1 part fits every engine; the other 4 are engine-specific.

Part numbers include BUSSMANN MUSBT5, DORMAN 956144 and DORMAN 956146, among others listed above.

This table covers the Fuse boxes. Read more

One part is listed for the 2021 Ford F-450 Super Duty — MOTORCRAFT HLS1.

This table covers the Fuse Box covers. Read more

5 Fuse Box Cover parts for the 2021 Ford F-450 Super Duty come from 2 brands — MOTORCRAFT and DORMAN. The "Popular" part is MOTORCRAFT HLSC15. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

Part numbers include MOTORCRAFT HLSC15, DORMAN 956148 and MOTORCRAFT HLSC13, among others listed above.

This table covers the horns mounted in the front of the vehicle. Read more

This group shows a single part: MOTORCRAFT HRN2.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

DORMAN supplies the 3 Keyless Entry Remote parts for the 2021 Ford F-450 Super Duty. All of them fit every engine offered in the 2021 F-450 Super Duty.

This group includes DORMAN 99294ST, DORMAN 99284ST and DORMAN 99778ST.

This table covers the replacement shells for the key fob. Read more

One part is listed for the 2021 Ford F-450 Super Duty — DORMAN 95351.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Parking Aid Sensor parts are listed for the 2021 Ford F-450 Super Duty, from STANDARD MOTOR PRODUCTS and TECHPRO. All of them fit every engine offered in the 2021 F-450 Super Duty.

This group includes STANDARD MOTOR PRODUCTS PPS157 and TECHPRO FO1175122.

This table covers the Rain sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2021 Ford F-450 Super Duty — MOTORCRAFT WRS5.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

5 Speed Sensor parts for the 2021 Ford F-450 Super Duty come from 2 brands — MOTORCRAFT and STANDARD MOTOR PRODUCTS. The "Popular" part is MOTORCRAFT DY1520. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

Listed part numbers: MOTORCRAFT DY1520, MOTORCRAFT DY1517 and MOTORCRAFT DY1372, plus the other parts above.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

18 Starter Motor parts are listed for the 2021 Ford F-450 Super Duty, from PURE ENERGY, REMY, FVP and 4 other brands. MOTORCRAFT SA1227 carries the "Popular" badge.

In the New grade, MOTORCRAFT, WAI GLOBAL, PURE ENERGY and 3 other brands supply 8 parts: brand-new units rather than rebuilt ones. A representative part number is MOTORCRAFT SA1227.

In the Remanufactured grade, REMY, PURE ENERGY, TERREPOWER and 3 other brands supply 9 parts: factory-rebuilt units with new wear components. A representative part number is REMY 28050.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2021 Ford F-450 Super Duty — MOTORCRAFT SW9188.

This table covers the Yaw sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

This group shows a single part: MOTORCRAFT SW9354.