2021 Ford Explorer 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

20 Alternator / Generator parts are listed for the 2021 Ford Explorer, from MOTORCRAFT, TERREPOWER, PURE ENERGY and 3 other brands. MOTORCRAFT GL8949 carries the "Popular" badge.

In the New grade, MOTORCRAFT and SKP supply 6 parts: brand-new units rather than rebuilt ones. A representative part number is MOTORCRAFT GL8949.

In the Remanufactured grade, TERREPOWER, PURE ENERGY, REMY and 1 other brand supply 14 parts: factory-rebuilt units with new wear components. A representative part number is FVP 11829.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

8 Alternator / Generator Pulley parts for the 2021 Ford Explorer come from 3 brands — LITENS, MOTORCRAFT and CONTINENTAL. The "Popular" part is LITENS 920024A.

Listed part numbers: LITENS 920024A, CONTINENTAL 48714 and CONTINENTAL 49907, plus the other parts above.

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

9 Battery parts for the 2021 Ford Explorer come from 7 brands — ACDELCO, MOTORCRAFT, DEKA and 4 other brands. The "Popular" part is DEKA 9A48. 8 parts fit every engine; the other 1 is engine-specific.

This group includes DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM and the remaining 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 18 Battery Cable parts for the 2021 Ford Explorer. MOTORCRAFT WC97068 carries the "Popular" badge.

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

29 Battery Terminal parts for the 2021 Ford Explorer come from MOTORCRAFT. The "Popular" part is MOTORCRAFT WT1012. A list this long means Battery Terminal applications vary by configuration — the notes carry the qualifiers.

This table covers the brackets that mount the Blind Spot Detection Sensor. 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

MOTORCRAFT supplies both parts for the 2021 Ford Explorer. All of them fit every engine offered in the 2021 Explorer.

Part numbers include MOTORCRAFT BSSB3 and MOTORCRAFT BSSB17.

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

13 Circuit Breaker parts for the 2021 Ford Explorer come from MOTORCRAFT. The "Popular" part is MOTORCRAFT SW8298. 10 parts fit every engine; the other 3 are engine-specific.

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

MOTORCRAFT supplies the 3 Engine Control Module (ECM Computer) Bracket parts for the 2021 Ford Explorer.

Part numbers include MOTORCRAFT ECMB9, MOTORCRAFT ECMB11 and MOTORCRAFT ECMB10.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

6 Fuse parts for the 2021 Ford Explorer come from BUSSMANN. The "Popular" part is BUSSMANN FMS25. Every part fits all 4 engine options (2.3L L4 Turbocharged, 3.0L V6 Turbocharged, 3.3L V6 and 3.3L V6 ELECTRIC/GAS).

The 15 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS15 is listed in this group.

The 20 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS20 is listed in this group.

In the 25 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS25.

The 40 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS40 is listed in this group.

In the 50 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS50.

The 60 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS60 is listed in this group.

Part numbers include BUSSMANN FMS25, BUSSMANN FMS15 and BUSSMANN FMS20, among others listed above.

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

MOTORCRAFT supplies both parts for the 2021 Ford Explorer. All of them fit every engine offered in the 2021 Explorer.

Listed part numbers: MOTORCRAFT DY1791 and MOTORCRAFT DY1790.

This table covers the Fuse Box covers. Read more

This group shows a single part: MOTORCRAFT HLSC24.

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

3 Horn parts for the 2021 Ford Explorer come from 2 brands — MOTORCRAFT and DORMAN. Every part fits all 4 engine options (2.3L L4 Turbocharged, 3.0L V6 Turbocharged, 3.3L V6 and 3.3L V6 ELECTRIC/GAS).

This group includes DORMAN 926568, MOTORCRAFT HRN7 and MOTORCRAFT HRN36.

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

DORMAN supplies the 5 Keyless Entry Remote parts for the 2021 Ford Explorer. DORMAN 99295ST carries the "Popular" badge. All of them fit every engine offered in the 2021 Explorer.

Listed part numbers: DORMAN 99295ST, DORMAN 99780ST and DORMAN 99295, plus the other parts above.

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

One part is listed for the 2021 Ford Explorer — DORMAN 95353.

This table covers the Lane Departure Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

2 Lane Departure Camera / Module parts are listed for the 2021 Ford Explorer, from DORMAN and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2021 Explorer.

Part numbers include DORMAN 601770 and STANDARD MOTOR PRODUCTS LDS48.

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

7 Parking Aid Sensor parts are listed for the 2021 Ford Explorer, from STANDARD MOTOR PRODUCTS, MOTORCRAFT, DORMAN and 2 other brands. STANDARD MOTOR PRODUCTS PPS153 carries the "Popular" badge. All of them fit every engine offered in the 2021 Explorer.

This group includes STANDARD MOTOR PRODUCTS PPS153, STANDARD MOTOR PRODUCTS PPS154 and DORMAN 684107 and the remaining parts above.

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 Explorer — MOTORCRAFT WRS5.

This table covers the Reading Lamp wires. Read more

This group shows a single part: MOTORCRAFT WPT1537.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2021 Ford Explorer — DORMAN 601501.

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

14 Speed Sensor parts for the 2021 Ford Explorer come from 4 brands — MOTORCRAFT, STANDARD MOTOR PRODUCTS, DELPHI and 1 other brand. The "Popular" part is MOTORCRAFT DY1504. 9 parts fit every engine; the other 5 are engine-specific.

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

15 Starter Motor parts are listed for the 2021 Ford Explorer, from PURE ENERGY, FVP, MOTORCRAFT and 1 other brand. MOTORCRAFT SA1138 carries the "Popular" badge.

New: 5 parts, from MOTORCRAFT and PURE ENERGY. A representative part number is MOTORCRAFT SA1138.

Remanufactured: 7 parts, from FVP, PURE ENERGY and REMY. A representative part number is FVP 12850.

3 ungrouped parts are not assigned to a grade, with the same engine-level match.