139 Electrical switch & relay parts are listed for the 2021 Ford E-350, in 37 part types, covering the 7.3L V8 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Ford E-350, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Blower Switch (10 parts), Brake Light Switch (9 parts) and Turn Signal Switch (9 parts). The other 34 part types cover the remaining 111 parts.
Every part on this page is matched to the 7.3L V8 — the only engine offered in the 2021 Ford E-350.
The most listed brands for 2021 Ford E-350 electrical switch & relay parts are MOTORCRAFT (41 parts), STANDARD MOTOR PRODUCTS (37 parts) and HELLA (19 parts), plus 13 more brands. Quality grades include Standard Replacement and Economy.
19 parts on this 2021 Ford E-350 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FOUR SEASONS 20916 (A/C Refrigerant Pressure Switch) and STANDARD MOTOR PRODUCTS RY116T (Accessory Power Relay). Click any part number to see every vehicle that part fits.
A/C Clutch Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC | SW9701C | 🇺🇸 US 🇨🇦 CA | Clutch Cycling Switch | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | YH2012 | 🇺🇸 US 🇨🇦 CA | Low PressureLocated On Accumulator | View on Amazon |
| MOTORCRAFT | YH2013 | 🇺🇸 US 🇨🇦 CA | Low PressureLocated On Accumulator | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1713700 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the A/C Clutch 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.
4 A/C Clutch Switch parts are listed for the 2021 Ford E-350, from MOTORCRAFT, UAC and GPD.
In the Economy grade, UAC supplies 1 part: the catalog's value-priced group. A representative part number is UAC SW9701C.
The Standard Replacement section lists 2 options from MOTORCRAFT — built to original-equipment specification. MOTORCRAFT YH2012 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes UAC SW9701C, MOTORCRAFT YH2012 and MOTORCRAFT YH2013 and the remaining parts above.
A/C Compressor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the A/C Compressor 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.
2 A/C Compressor Relay parts for the 2021 Ford E-350 come from STANDARD MOTOR PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS RY116T and STANDARD MOTOR PRODUCTS RY116.
A/C Condenser Fan Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY255 | 🇺🇸 US 🇨🇦 CA | Amperage Rating: 70 AContinuous Duty: YES | View on Amazon |
This table covers the relays that control the A/C Condenser Fan Motor 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.
This group shows a single part: STANDARD MOTOR PRODUCTS RY255.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular | 20916 | 🇺🇸 US 🇨🇦 CA | Pressure SwitchHigh Side Only | View on Amazon |
| UAC Popular | SW10035C | 🇺🇸 US 🇨🇦 CA | HPCO Switch | View on Amazon |
| DORMAN | 904612 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS | 37340 | 🇺🇸 US 🇨🇦 CA | Pressure Switch | View on Amazon |
| GPD | 1711937 | 🇺🇸 US 🇨🇦 CA | Transducer | View on Amazon |
| MOTORCRAFT | YH1705 | 🇺🇸 US 🇨🇦 CA | Color - Black2 Pin Terminal | View on Amazon |
| MOTORCRAFT | YH2034 | 🇺🇸 US 🇨🇦 CA | with Aux ACPressure Cut Off Switch | View on Amazon |
| UAC | SW10101C | 🇺🇸 US 🇨🇦 CA | 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.
8 A/C Refrigerant Pressure Switch parts for the 2021 Ford E-350 come from 5 brands — FOUR SEASONS, UAC, MOTORCRAFT and 2 other brands. The "Popular" part is FOUR SEASONS 20916.
This group includes FOUR SEASONS 20916, UAC SW10035C and DORMAN 904612 and the remaining parts above.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA | 4-pin connector | View on Amazon |
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY255 | 🇺🇸 US 🇨🇦 CA | Amperage Rating: 70 AContinuous Duty: YES | 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 are listed for the 2021 Ford E-350, from STANDARD MOTOR PRODUCTS and HELLA. STANDARD MOTOR PRODUCTS RY116T carries the "Popular" badge.
Listed part numbers: STANDARD MOTOR PRODUCTS RY116T, STANDARD MOTOR PRODUCTS RY116 and HELLA 965400071, plus the other parts above.
Accessory Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW6760 | 🇺🇸 US 🇨🇦 CA | BlackSpare Accessory Switches-4 | View on Amazon |
| MOTORCRAFT | SW8600 | 🇺🇸 US 🇨🇦 CA | Housing - Windshield Wiper | 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.
MOTORCRAFT supplies both parts for the 2021 Ford E-350.
Part numbers include MOTORCRAFT SW6760 and MOTORCRAFT SW8600.
Active Suspension Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Active Suspension 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Ford E-350.
Part numbers include STANDARD MOTOR PRODUCTS RY116T and STANDARD MOTOR PRODUCTS RY116.
Blower Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| HELLA | 933332641 | 🇺🇸 US 🇨🇦 CA | 5-Pin ConnectorColor: Black, Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Blower Motor 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.
4 Blower Motor Relay parts for the 2021 Ford E-350 come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS.
Listed part numbers: HELLA 933332541, HELLA 933332641 and STANDARD MOTOR PRODUCTS RY116T, plus the other parts above.
Blower Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BWD/NIEHOFF | HS300 | 🇺🇸 US 🇨🇦 CA | Fits FrontDEALER INSTALLED A/C | View on Amazon |
| BWD/NIEHOFF | BL19 | 🇺🇸 US 🇨🇦 CA | Fits Frontwith Factory Installed A/C | View on Amazon |
| DORMAN | 901252 | 🇺🇸 US 🇨🇦 CA | with Manual Air Conditioning Controls | View on Amazon |
| STANDARD MOTOR PRODUCTS | HS214T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| UAC | SW11118C | 🇺🇸 US 🇨🇦 CA | Blower Switch Rotary | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | YH1934 | 🇺🇸 US 🇨🇦 CA | Frontwith Four Control Positions | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | HS214 | 🇺🇸 US 🇨🇦 CA | Frontwith Factory Installed A/C | View on Amazon |
| MOTORCRAFT | YH1515 | 🇺🇸 US 🇨🇦 CA | Temp Control | View on Amazon |
| MOTORCRAFT | YH1479 | 🇺🇸 US 🇨🇦 CA | HVAC Heater Control Switch (Defrost, Floor, Vent) | View on Amazon |
| STANDARD MOTOR PRODUCTS | HS319 | 🇺🇸 US 🇨🇦 CA | Frontwith Dealer Installed A/C | View on Amazon |
This table covers the Blower 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.
10 Blower Switch parts for the 2021 Ford E-350 come from 5 brands — STANDARD MOTOR PRODUCTS, MOTORCRAFT, BWD/NIEHOFF and 2 other brands. The "Popular" part is MOTORCRAFT YH1934.
The Economy section: 5 options from BWD/NIEHOFF, DORMAN, STANDARD MOTOR PRODUCTS and 1 other brand. BWD/NIEHOFF HS300 is listed in this group.
Standard Replacement: 5 parts, from MOTORCRAFT and STANDARD MOTOR PRODUCTS. A representative part number is MOTORCRAFT YH1934.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926487 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2BLS0025 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP | SKSLS510 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | SLS510T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7810 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular | SLS510 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 2012749 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | SW409 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1S10920 | 🇺🇸 US 🇨🇦 CA | 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 for the 2021 Ford E-350 come from 8 brands — STANDARD MOTOR PRODUCTS, DORMAN, HOLSTEIN and 5 other brands. The "Popular" part is MOTORCRAFT SW7810.
The Economy section: 4 options from DORMAN, HOLSTEIN, SKP and 1 other brand. DORMAN 926487 is listed in this group.
Standard Replacement: 5 parts, from MOTORCRAFT, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 2 other brands. A representative part number is MOTORCRAFT SW7810.
Listed part numbers: MOTORCRAFT SW7810, DORMAN 926487 and HOLSTEIN 2BLS0025, plus the other parts above.
Cruise Control Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7452 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| MOTORCRAFT Popular | SW7449 | 🇺🇸 US 🇨🇦 CA | LeftColor: Black | View on Amazon |
| MOTORCRAFT | SW7451 | 🇺🇸 US 🇨🇦 CA | Leftwithout Speed Control | View on Amazon |
| MOTORCRAFT | SW7450 | 🇺🇸 US 🇨🇦 CA | Leftwith Adaptive Speed Control | View on Amazon |
| MOTORCRAFT | SW6749 | 🇺🇸 US 🇨🇦 CA | with Media Gateway Module | View on Amazon |
| MOTORCRAFT | SW6748 | 🇺🇸 US 🇨🇦 CA | without SYNC | 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.
MOTORCRAFT supplies the 6 Cruise Control Switch parts for the 2021 Ford E-350. MOTORCRAFT SW7452 carries the "Popular" badge.
Part numbers include MOTORCRAFT SW7452, MOTORCRAFT SW7449 and MOTORCRAFT SW7451, among others listed above.
Defroster Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| HELLA | 933332641 | 🇺🇸 US 🇨🇦 CA | 5-Pin ConnectorColor: Black, Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Defroster 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.
4 Defroster Relay parts for the 2021 Ford E-350 come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS.
Listed part numbers: HELLA 933332541, HELLA 933332641 and STANDARD MOTOR PRODUCTS RY116T, plus the other parts above.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 640036 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | CBS2293 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS | 1S15118 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. 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 Dimmer Switch parts are listed for the 2021 Ford E-350, from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include ROSTRA 640036, STANDARD MOTOR PRODUCTS CBS2293 and WELLS 1S15118.
Door Jamb Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW6345 | 🇺🇸 US 🇨🇦 CA | Side Hinged Doors | View on Amazon |
| STANDARD MOTOR PRODUCTS | DS840 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
This table covers the Door Jamb 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.
2 Door Jamb Switch parts are listed for the 2021 Ford E-350, from MOTORCRAFT and STANDARD MOTOR PRODUCTS.
This group includes MOTORCRAFT SW6345 and STANDARD MOTOR PRODUCTS DS840.
Door Lock Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Door Lock 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Ford E-350.
Listed part numbers: STANDARD MOTOR PRODUCTS RY116T and STANDARD MOTOR PRODUCTS RY116.
Door Lock Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 920662 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7240 | 🇺🇸 US 🇨🇦 CA | Front LeftExc. RV Prep Version | View on Amazon |
| MOTORCRAFT | SW7206 | 🇺🇸 US 🇨🇦 CA | Fits Front LeftBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS | PDS245 | 🇺🇸 US 🇨🇦 CA | Front LeftPosition Switch | 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.
4 Door Lock Switch parts for the 2021 Ford E-350 come from 3 brands — MOTORCRAFT, DORMAN and STANDARD MOTOR PRODUCTS.
The Economy section: 1 option from DORMAN. DORMAN 920662 is listed in this group.
Standard Replacement: 3 parts, from MOTORCRAFT and STANDARD MOTOR PRODUCTS. A representative part number is MOTORCRAFT SW7240.
Part numbers include DORMAN 920662, MOTORCRAFT SW7240 and MOTORCRAFT SW7206, among others listed above.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA | 4-pin connector | View on Amazon |
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
This table covers the relays that control the Fuel Pump / Circuit Opening 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.
5 Fuel Pump / Circuit Opening Relay parts for the 2021 Ford E-350 come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS. The "Popular" part is STANDARD MOTOR PRODUCTS RY116.
Listed part numbers: STANDARD MOTOR PRODUCTS RY116, HELLA 965400071 and HELLA 933766801, plus the other parts above.
Hazard Warning Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7413 | 🇺🇸 US 🇨🇦 CA | without Collision Mitigation System | View on Amazon |
| MOTORCRAFT | SW7808 | 🇺🇸 US 🇨🇦 CA | with black stalk | 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.
MOTORCRAFT supplies both parts for the 2021 Ford E-350.
Part numbers include MOTORCRAFT SW7413 and MOTORCRAFT SW7808.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW8618 | 🇺🇸 US 🇨🇦 CA | Headlamp with Integrated Dimmer | View on Amazon |
| ROSTRA | 650433 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
| STANDARD MOTOR PRODUCTS | HLS1570 | 🇺🇸 US 🇨🇦 CA | without Front Fog Lightswith Automatic Headlights | View on Amazon |
| WELLS | 1S13831 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | 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 are listed for the 2021 Ford E-350, from MOTORCRAFT, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Part numbers include MOTORCRAFT SW8618, ROSTRA 650433 and STANDARD MOTOR PRODUCTS HLS1570, among others listed above.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA | 4-pin connector | View on Amazon |
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
This table covers the relays that control the Horn 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.
5 Horn Relay parts are listed for the 2021 Ford E-350, from HELLA and STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS RY116 carries the "Popular" badge.
Part numbers include STANDARD MOTOR PRODUCTS RY116, HELLA 965400071 and HELLA 933766801, among others listed above.
Ignition Starter Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 924867 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW9352 | 🇺🇸 US 🇨🇦 CA | Steering column | View on Amazon |
| WELLS Popular | 1S10967 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOTORCRAFT | SW9353 | 🇺🇸 US 🇨🇦 CA | Actuator Assembly | View on Amazon |
| MOTORCRAFT | SW6958 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA | 630090 | 🇺🇸 US 🇨🇦 CA | 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.
6 Ignition Starter Switch parts are listed for the 2021 Ford E-350, from MOTORCRAFT, DORMAN, WELLS and 1 other brand. MOTORCRAFT SW9352 carries the "Popular" badge.
Economy: 1 part, from DORMAN. A representative part number is DORMAN 924867.
The Standard Replacement section: 5 options from MOTORCRAFT, WELLS and ROSTRA. MOTORCRAFT SW9352 is listed in this group.
Listed part numbers: MOTORCRAFT SW9352, DORMAN 924867 and WELLS 1S10967, plus the other parts above.
Instrument Cluster Voltage Regulator Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7863 | 🇺🇸 US 🇨🇦 CA | Blackwith Hazard Warning | 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.
One part is listed for the 2021 Ford E-350 — MOTORCRAFT SW7863.
Instrument Panel Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S13831 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
This table covers the Instrument Panel Dimmer 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: WELLS 1S13831.
Neutral Safety Switch / Range Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | TGPS1 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | NS659 | 🇺🇸 US 🇨🇦 CA | Terminal Type: Blade | 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.
2 Neutral Safety Switch / Range Sensor parts for the 2021 Ford E-350 come from 2 brands — MOTORCRAFT and STANDARD MOTOR PRODUCTS.
This group includes MOTORCRAFT TGPS1 and STANDARD MOTOR PRODUCTS NS659.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926461 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | OPS335 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PS658 | 🇺🇸 US 🇨🇦 CA | with Light | View on Amazon |
| MOTORCRAFT | OPS1 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1S16082 | 🇺🇸 US 🇨🇦 CA | 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.
5 Oil Pressure Sender / Switch parts for the 2021 Ford E-350 come from 5 brands — DORMAN, UNITED MOTOR PRODUCTS, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PS658.
The Economy section: 2 options from DORMAN and UNITED MOTOR PRODUCTS. DORMAN 926461 is listed in this group.
Standard Replacement: 3 parts, from STANDARD MOTOR PRODUCTS, MOTORCRAFT and WELLS. A representative part number is STANDARD MOTOR PRODUCTS PS658.
Part numbers include STANDARD MOTOR PRODUCTS PS658, DORMAN 926461 and UNITED MOTOR PRODUCTS OPS335, among others listed above.
Outside Mirror Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 901164 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | MRS13 | 🇺🇸 US 🇨🇦 CA | without Power Folding Mirrors | View on Amazon |
This table covers the Outside Mirror 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.
2 Outside Mirror Switch parts are listed for the 2021 Ford E-350, from DORMAN and STANDARD MOTOR PRODUCTS.
Economy: 1 part, from DORMAN. A representative part number is DORMAN 901164.
The Standard Replacement section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS MRS13 is listed in this group.
Listed part numbers: DORMAN 901164 and STANDARD MOTOR PRODUCTS MRS13.
Passenger Air Bag Disable Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW9218 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Passenger Air Bag Disable 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 E-350 — MOTORCRAFT SW9218.
Power Seat Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 920663 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7062 | 🇺🇸 US 🇨🇦 CA | Seat SwitchAdjusting | 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.
2 Power Seat Switch parts are listed for the 2021 Ford E-350, from DORMAN and MOTORCRAFT.
Economy: 1 part, from DORMAN. A representative part number is DORMAN 920663.
The Standard Replacement section: 1 option from MOTORCRAFT. MOTORCRAFT SW7062 is listed in this group.
This group includes DORMAN 920663 and MOTORCRAFT SW7062.
Power Window Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 901363 | 🇺🇸 US 🇨🇦 CA | Front Right1 Button | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7207 | 🇺🇸 US 🇨🇦 CA | Front RightColor: Black | View on Amazon |
| MOTORCRAFT Popular | SW7244 | 🇺🇸 US 🇨🇦 CA | RightBlack | View on Amazon |
| MOTORCRAFT | SW7215 | 🇺🇸 US 🇨🇦 CA | Front LeftBlack | View on Amazon |
| MOTORCRAFT | SW7246 | 🇺🇸 US 🇨🇦 CA | LeftBlack | View on Amazon |
| WELLS | 1S12950 | 🇺🇸 US 🇨🇦 CA | Front Right | 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.
6 Power Window Switch parts for the 2021 Ford E-350 come from 3 brands — MOTORCRAFT, DORMAN and WELLS. The "Popular" part is MOTORCRAFT SW7207.
The Economy section: 1 option from DORMAN. DORMAN 901363 is listed in this group.
Standard Replacement: 5 parts, from MOTORCRAFT and WELLS. A representative part number is MOTORCRAFT SW7207.
This group includes MOTORCRAFT SW7207, DORMAN 901363 and MOTORCRAFT SW7244 and the remaining parts above.
Powertrain Control Module Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| HELLA | 933332641 | 🇺🇸 US 🇨🇦 CA | 5-Pin ConnectorColor: Black, Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Powertrain Control Module 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.
4 Powertrain Control Module Relay parts for the 2021 Ford E-350 come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS.
Part numbers include HELLA 933332541, HELLA 933332641 and STANDARD MOTOR PRODUCTS RY116T, among others listed above.
Starter Motor Control Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332541 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: B | View on Amazon |
| HELLA | 933332641 | 🇺🇸 US 🇨🇦 CA | 5-Pin ConnectorColor: Black, Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
This table covers the relays that control the Starter Motor Control 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.
4 Starter Motor Control Relay parts are listed for the 2021 Ford E-350, from HELLA and STANDARD MOTOR PRODUCTS.
Listed part numbers: HELLA 933332541, HELLA 933332641 and STANDARD MOTOR PRODUCTS RY116T, plus the other parts above.
Step / Courtesy Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW6346 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| MOTORCRAFT | SW5188 | 🇺🇸 US 🇨🇦 CA | SLIDING DOOR | View on Amazon |
| MOTORCRAFT | SW5195 | 🇺🇸 US 🇨🇦 CA | with Illuminated Entry System | View on Amazon |
This table covers the Step / Courtesy Light 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 Step / Courtesy Light Switch parts for the 2021 Ford E-350 come from MOTORCRAFT.
Part numbers include MOTORCRAFT SW6346, MOTORCRAFT SW5188 and MOTORCRAFT SW5195.
Transmission-Automatic Fluid Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW6215 | 🇺🇸 US 🇨🇦 CA | No Conductor In Switch | View on Amazon |
This table covers the Transmission-Automatic Fluid Pressure 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 SW6215.
Turn Signal Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | EFL23 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the relays that control the Turn Signal 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 E-350 — STANDARD MOTOR PRODUCTS EFL23.
Turn Signal Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | FD1322065 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN | 901781 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP | SKCBS2293 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| VEMO | V25730153 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Popular | SW7917 | 🇺🇸 US 🇨🇦 CA | Color: Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | CBS2293 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| MOTORCRAFT | SW7808 | 🇺🇸 US 🇨🇦 CA | with black stalk | View on Amazon |
| ROSTRA | 640036 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1S15118 | 🇺🇸 US 🇨🇦 CA | 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.
9 Turn Signal Switch parts for the 2021 Ford E-350 come from 8 brands — MOTORCRAFT, AUTOTECNICA, DORMAN and 5 other brands. The "Popular" part is MOTORCRAFT SW7917.
The Economy section: 4 options from AUTOTECNICA, DORMAN, SKP and 1 other brand. AUTOTECNICA FD1322065 is listed in this group.
Standard Replacement: 5 parts, from MOTORCRAFT, STANDARD MOTOR PRODUCTS, ROSTRA and 1 other brand. A representative part number is MOTORCRAFT SW7917.
Part numbers include MOTORCRAFT SW7917, AUTOTECNICA FD1322065 and DORMAN 901781, among others listed above.
Wiper / Washer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT | SW7808 | 🇺🇸 US 🇨🇦 CA | with black stalk | View on Amazon |
| ROSTRA | 640036 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | CBS2293 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS | 1S15118 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Wiper / Washer 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.
4 Wiper / Washer Switch parts are listed for the 2021 Ford E-350, from MOTORCRAFT, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Part numbers include MOTORCRAFT SW7808, ROSTRA 640036 and STANDARD MOTOR PRODUCTS CBS2293, among others listed above.
Wiring Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 965400071 | 🇺🇸 US 🇨🇦 CA | 4-Pin ConnectorPlug: A | View on Amazon |
| HELLA | 933766801 | 🇺🇸 US 🇨🇦 CA | 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.
2 Wiring Relay parts for the 2021 Ford E-350 come from HELLA.
Part numbers include HELLA 965400071 and HELLA 933766801.
Buying Electrical Switch & Relay Parts for a 2021 Ford E-350
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 7.3L V8 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: Blower Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Ford E-350?
Our catalog currently lists 139 electrical switch & relay parts for the 2021 Ford E-350 across 37 subcategories and 16 brands, covering the 7.3L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2021 Ford E-350?
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 E-350 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 E-350?
Every part on this page is matched to the 7.3L V8 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 E-350
Electrical Switch & Relay Parts for Other Ford E-350 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.