104 Electrical switch & relay parts are listed for the 2021 Ford Expedition, in 25 part types, covering the 3.5L V6 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The switch and relay system on the 2021 Ford Expedition covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Power Window Switch (14 parts), Brake Light Switch (9 parts) and Power Seat Switch (9 parts). The other 22 part types cover the remaining 72 parts.
The 2021 Ford Expedition came with a single engine, the 3.5L V6 Turbocharged, and every part is verified against it.
13 brands supply electrical switch & relay parts for the 2021 Ford Expedition, led by MOTORCRAFT (44 parts), STANDARD MOTOR PRODUCTS (13 parts) and DORMAN (12 parts), plus 10 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Ford Expedition. 18 parts have it, including MOTORCRAFT YH2034 (A/C Refrigerant Pressure Switch) and STANDARD MOTOR PRODUCTS RY966 (Accessory Power Relay). Each part number opens a page with every vehicle that part fits.
4WD Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | DMS14 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4WD2 Speed Transfer Case with TOD | View on Amazon |
| MOTORCRAFT | DMS20 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Hill Descent Control Switch | View on Amazon |
| MOTORCRAFT | DMS21 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4WD1 Speed Transfer Case with TOD | View on Amazon |
This table covers the 4WD switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
MOTORCRAFT supplies the 3 4WD Switch parts for the 2021 Ford Expedition.
Listed part numbers: MOTORCRAFT DMS14, MOTORCRAFT DMS20 and MOTORCRAFT DMS21.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V25730143 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: VEMO V25730143.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | YH2034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Cut Off SwitchM10 X 1.25 - 6H Thread | View on Amazon |
| DORMAN | 904612 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FOUR SEASONS | 37340 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| GPD | 1711937 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transducer | View on Amazon |
| UAC | SW10101C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 A/C Refrigerant Pressure Switch parts are listed for the 2021 Ford Expedition, from MOTORCRAFT, DORMAN, FOUR SEASONS and 2 other brands. MOTORCRAFT YH2034 carries the "Popular" badge.
Listed part numbers: MOTORCRAFT YH2034, DORMAN 904612 and FOUR SEASONS 37340, plus the other parts above.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | RY966 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rectangular Relay40 Amp | View on Amazon |
| WELLS Popular | 1R2372 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 4 TerminalsRectangular | View on Amazon |
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| HOLSTEIN | 2RSW0004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rectangular Shape40 Amp | View on Amazon |
| ROSTRA | 600024 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RectangularReplaces 40 Amp Relay | View on Amazon |
This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
6 Accessory Power Relay parts for the 2021 Ford Expedition come from 5 brands — HELLA, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS RY966.
This group includes STANDARD MOTOR PRODUCTS RY966, WELLS 1R2372 and HELLA 965400071 and the remaining parts above.
Accessory Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW9097 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Solenoid Control, Black | View on Amazon |
This table covers the Accessory switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: MOTORCRAFT SW9097.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926487 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN | 2BLS0025 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP | SKSLS510 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | SLS510T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7810 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular | SLS510 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA | 620008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | SW409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1S10920 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
9 Brake Light Switch parts are listed for the 2021 Ford Expedition, from STANDARD MOTOR PRODUCTS, DORMAN, HOLSTEIN and 5 other brands. MOTORCRAFT SW7810 carries the "Popular" badge.
In the Economy grade, DORMAN, HOLSTEIN, SKP and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is DORMAN 926487.
The Standard Replacement section lists 5 options from MOTORCRAFT, STANDARD MOTOR PRODUCTS, ROSTRA and 2 other brands — built to original-equipment specification. MOTORCRAFT SW7810 is listed in this group.
Part numbers include MOTORCRAFT SW7810, DORMAN 926487 and HOLSTEIN 2BLS0025, among others listed above.
Cruise Control Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7449 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LeftColor: Black | View on Amazon |
| MOTORCRAFT | SW7712 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Trunk/Liftgate Release | View on Amazon |
| MOTORCRAFT | SW7452 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rightwith Speed Control | View on Amazon |
| MOTORCRAFT | SW7903 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Leftwith Adaptive Speed Control | View on Amazon |
| VEMO | V25800001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Cruise Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 Cruise Control Switch parts for the 2021 Ford Expedition come from 2 brands — MOTORCRAFT and VEMO. The "Popular" part is MOTORCRAFT SW7449.
Part numbers include MOTORCRAFT SW7449, MOTORCRAFT SW7712 and MOTORCRAFT SW7452, among others listed above.
Door Lock Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 901217 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| DORMAN | 920571 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7283 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftColor: Black | View on Amazon |
| MOTORCRAFT | SW7282 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightColor: Black | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V25730158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| VEMO | V25730159 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Right | View on Amazon |
This table covers the Door Lock switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
6 Door Lock Switch parts are listed for the 2021 Ford Expedition, from DORMAN, MOTORCRAFT and VEMO. DORMAN 901217 carries the "Popular" badge.
Economy: 2 parts, from DORMAN. A representative part number is DORMAN 901217.
The Standard Replacement section: 2 options from MOTORCRAFT. MOTORCRAFT SW7283 is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
This group includes DORMAN 901217, DORMAN 920571 and MOTORCRAFT SW7283 and the remaining parts above.
Fog / Driving Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HLS1583 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Fog / Driving Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: STANDARD MOTOR PRODUCTS HLS1583.
Hazard Warning Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7413 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Lane Keeping Aid | View on Amazon |
This table covers the Hazard Warning switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: MOTORCRAFT SW7413.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW6985 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color: Black | View on Amazon |
| ROSTRA | 650458 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HLS1583 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with LED Lightswith Front Fog Lights | View on Amazon |
| WELLS | 1S13830 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Headlamp Switch parts for the 2021 Ford Expedition come from 4 brands — MOTORCRAFT, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
This group includes MOTORCRAFT SW6985, ROSTRA 650458 and STANDARD MOTOR PRODUCTS HLS1583 and the remaining parts above.
HVAC Control Switch / Panel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | CCM218 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Rear Heated Seatswith Dual Zone Auto Temp Control AC | View on Amazon |
| MOTORCRAFT | CCM219 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Rear Heated Seatswith Dual Zone Auto Temp Control AC | View on Amazon |
| MOTORCRAFT | CCM220 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Rear Heated Seatswith Full Floor Console | View on Amazon |
This table covers the HVAC Control Switch panels.
3 HVAC Control Switch / Panel parts for the 2021 Ford Expedition come from MOTORCRAFT.
Part numbers include MOTORCRAFT CCM218, MOTORCRAFT CCM219 and MOTORCRAFT CCM220.
Ignition Starter Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 924867 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1S6071 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Quantity: 7 | View on Amazon |
| MOTORCRAFT | SW6958 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Key-Integral Fobwith Manual Tilt/Telescoping Floor Shifter Steering Column | View on Amazon |
| ROSTRA | 630002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 76700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 Ignition Starter Switch parts for the 2021 Ford Expedition come from 4 brands — DORMAN, WELLS, MOTORCRAFT and 1 other brand. The "Popular" part is WELLS 1S6071.
The Economy section: 1 option from DORMAN. DORMAN 924867 is listed in this group.
Standard Replacement: 3 parts, from WELLS, MOTORCRAFT and ROSTRA. A representative part number is WELLS 1S6071.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes WELLS 1S6071, DORMAN 924867 and MOTORCRAFT SW6958 and the remaining parts above.
Instrument Cluster Voltage Regulator Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7866 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Automated Parking Systemwith Front Parking Aid | View on Amazon |
| MOTORCRAFT | SW7847 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fixed Rear View Camera | View on Amazon |
| MOTORCRAFT | SW7863 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Hazard Warningwith Lane Keeping Aid | View on Amazon |
| MOTORCRAFT | SW7864 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Front/Side/Rear View Camera | View on Amazon |
| MOTORCRAFT | SW7865 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Front Parking Aidwith Advanced Automated Park System | View on Amazon |
| MOTORCRAFT | SW7867 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Third Rowwith Hands Free Power Liftgate | View on Amazon |
| MOTORCRAFT | SW7868 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Hill Descent Controlwith Traction Control | View on Amazon |
This table covers the Instrument Cluster Voltage Regulator switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
7 Instrument Cluster Voltage Regulator Switch parts for the 2021 Ford Expedition come from MOTORCRAFT.
This group includes MOTORCRAFT SW7866, MOTORCRAFT SW7847 and MOTORCRAFT SW7863 and the remaining parts above.
Multi-Function Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1R2372 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 4 TerminalsRectangular | View on Amazon |
This table covers the relays that control the Multi-Function circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2021 Ford Expedition — WELLS 1R2372.
Neutral Safety Switch / Range Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | TGPS5 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Neutral Safety Switch / Range 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.
One part is listed for the 2021 Ford Expedition — MOTORCRAFT TGPS5.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 926461 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | OPS335 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PS658 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1S16082 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1816548 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| HOLSTEIN | 2OPS0066 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
6 Oil Pressure Sender / Switch parts are listed for the 2021 Ford Expedition, from DORMAN, UNITED MOTOR PRODUCTS, STANDARD MOTOR PRODUCTS and 3 other brands. DORMAN 926461 carries the "Popular" badge.
Economy: 2 parts, from DORMAN and UNITED MOTOR PRODUCTS. A representative part number is DORMAN 926461.
The Standard Replacement section: 2 options from STANDARD MOTOR PRODUCTS and WELLS. STANDARD MOTOR PRODUCTS PS658 is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Part numbers include DORMAN 926461, UNITED MOTOR PRODUCTS OPS335 and STANDARD MOTOR PRODUCTS PS658, among others listed above.
Parking Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW9249 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PARKING BRAKE | View on Amazon |
This table covers the Parking Brake switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 Ford Expedition — MOTORCRAFT SW9249.
Power Brake Booster Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926464 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Power Brake Booster switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: DORMAN 926464.
Power Seat Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7974 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT Popular | SW7975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT | SW8321 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT | SW9247 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat Adjust | View on Amazon |
| MOTORCRAFT | SW7965 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT | SW7980 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT | SW7987 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seat SwitchAdjusting | View on Amazon |
| MOTORCRAFT | SW9239 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Power Seat Adjust | View on Amazon |
| MOTORCRAFT | SW9241 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RH | View on Amazon |
This table covers the Power Seat switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
9 Power Seat Switch parts for the 2021 Ford Expedition come from MOTORCRAFT. The "Popular" part is MOTORCRAFT SW7974.
Listed part numbers: MOTORCRAFT SW7974, MOTORCRAFT SW7975 and MOTORCRAFT SW8321, plus the other parts above.
Power Window Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 920560 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Front Right | View on Amazon |
| DORMAN | 901697 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear LeftInterior Trim Package C, D or R or Interior Trim Package S | View on Amazon |
| SKP | SK601A70 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Interior Non-Wood Trim | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7340 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Interior Non-Wood Trim Packagewith Interior Trim Accent Package H | View on Amazon |
| MOTORCRAFT Popular | SW7442 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Interior Trim Accent Package C, D, R or SSingle, Right and Left Rear Doors, Black | View on Amazon |
| MOTORCRAFT Popular | SW7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Interior Trim Accent Package C, D or R | View on Amazon |
| MOTORCRAFT | SW8740 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Interior Non-Wood Trim Package | View on Amazon |
| MOTORCRAFT | SW7836 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Interior Trim Accent Package S | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2116 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete AssemblyBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2193 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| WELLS | 1S13537 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Front Right | View on Amazon |
| WELLS | 1S15632 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Left | View on Amazon |
| WELLS | 1S14148 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwithout Wood Grain | View on Amazon |
This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
14 Power Window Switch parts are listed for the 2021 Ford Expedition, from MOTORCRAFT, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. MOTORCRAFT SW7340 carries the "Popular" badge.
Economy: 3 parts, from DORMAN and SKP. A representative part number is DORMAN 920560.
The Standard Replacement section: 11 options from MOTORCRAFT, STANDARD MOTOR PRODUCTS and WELLS. MOTORCRAFT SW7340 is listed in this group.
Trailer Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 601027 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP | SKSM2498 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | TBM006 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Trailer Brake switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Trailer Brake Switch parts for the 2021 Ford Expedition come from 3 brands — DORMAN, SKP and STANDARD MOTOR PRODUCTS.
Listed part numbers: DORMAN 601027, SKP SKSM2498 and STANDARD MOTOR PRODUCTS TBM006.
Trunk Lid / Tailgate Release Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926488 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rearwith Hands Free Power Lift Gate | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | LSW121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | InsideAt Liftgate | View on Amazon |
| WELLS Popular | 1S3680 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| MOTORCRAFT | SW7690 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Back Glass or Liftgate | View on Amazon |
| ROSTRA | 650089 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | LSW132 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OutsideAt Liftgate | View on Amazon |
| STANDARD MOTOR PRODUCTS | DLA1552 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lowerwith Sensor | View on Amazon |
This table covers the Trunk Lid / Tailgate Release switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
7 Trunk Lid / Tailgate Release Switch parts for the 2021 Ford Expedition come from 5 brands — STANDARD MOTOR PRODUCTS, DORMAN, WELLS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS LSW121.
The Economy section: 1 option from DORMAN. DORMAN 926488 is listed in this group.
Standard Replacement: 6 parts, from STANDARD MOTOR PRODUCTS, WELLS, MOTORCRAFT and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS LSW121.
This group includes STANDARD MOTOR PRODUCTS LSW121, DORMAN 926488 and WELLS 1S3680 and the remaining parts above.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7869 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with variable intermittent wiper | View on Amazon |
| MOTORCRAFT | SW7870 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Rain Sensitive Wipers | View on Amazon |
This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
MOTORCRAFT supplies both parts for the 2021 Ford Expedition.
Listed part numbers: MOTORCRAFT SW7869 and MOTORCRAFT SW7870.
Wiring Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
This table covers the relays that control the Wiring circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
HELLA supplies both parts for the 2021 Ford Expedition.
Part numbers include HELLA 965400071 and HELLA 933766801.
Buying Electrical Switch & Relay Parts for a 2021 Ford Expedition
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Confirm you have the 3.5L V6 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Power Window Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Ford Expedition?
Our catalog currently lists 104 electrical switch & relay parts for the 2021 Ford Expedition across 25 subcategories and 13 brands, covering the 3.5L V6 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2021 Ford Expedition?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Ford Expedition was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Ford Expedition?
Every part on this page is matched to the 3.5L V6 Turbocharged engine. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Ford Expedition
Electrical Switch & Relay Parts for Other Ford Expedition Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.