The 2018 Nissan Leaf has 42 electrical switch & relay parts with verified fitment on this page — 17 part types and 10 brands, covering the ELECTRIC engine. Each part includes a manufacturer part number and application notes.
On the 2018 Nissan Leaf, 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 Power Window Switch (8 parts), Brake Light Switch (4 parts) and Horn Relay (4 parts). The other 14 part types cover the remaining 26 parts.
The 2018 Nissan Leaf came with a single engine, the ELECTRIC, and every part is verified against it.
10 brands supply electrical switch & relay parts for the 2018 Nissan Leaf, led by WELLS (15 parts), STANDARD MOTOR PRODUCTS (11 parts) and ROSTRA (5 parts), plus 7 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Nissan Leaf. 2 parts have it, including STANDARD MOTOR PRODUCTS DWS1689 (Power Window Switch) and WELLS 1S13369 (Power Window Switch). Each part number opens a page with every vehicle that part fits.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET | 250073 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS | 20994 | 🇺🇸 US 🇨🇦 CA | Pressure Switch | View on Amazon |
| UAC | SW10087C | 🇺🇸 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.
3 A/C Refrigerant Pressure Switch parts are listed for the 2018 Nissan Leaf, from FACET, FOUR SEASONS and UAC.
This group includes FACET 250073, FOUR SEASONS 20994 and UAC SW10087C.
A/C System Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC | RE8417 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC | RE8417C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the relays that control the A/C System 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.
UAC supplies both parts for the 2018 Nissan Leaf.
Listed part numbers: UAC RE8417 and UAC RE8417C.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1R1921 | 🇺🇸 US 🇨🇦 CA | Blue | 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.
This group shows a single part: WELLS 1R1921.
Blower Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 0332011007 | 🇺🇸 US 🇨🇦 CA | Multi-Purpose Relay | View on Amazon |
| WELLS | 1R1921 | 🇺🇸 US 🇨🇦 CA | Blue | 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.
2 Blower Motor Relay parts are listed for the 2018 Nissan Leaf, from BOSCH and WELLS.
Listed part numbers: BOSCH 0332011007 and WELLS 1R1921.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V38730037 | 🇺🇸 US 🇨🇦 CA | From 12/2017 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2012752 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | SLS539 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1S11819 | 🇺🇸 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.
4 Brake Light Switch parts are listed for the 2018 Nissan Leaf, from VEMO, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 1 other brand.
In the Economy grade, VEMO supplies 1 part: the catalog's value-priced group. A representative part number is VEMO V38730037.
The Standard Replacement section lists 3 options from BECK/ARNLEY, STANDARD MOTOR PRODUCTS and WELLS — built to original-equipment specification. BECK/ARNLEY 2012752 is listed in this group.
Part numbers include VEMO V38730037, BECK/ARNLEY 2012752 and STANDARD MOTOR PRODUCTS SLS539, among others listed above.
Clutch Pedal Position / Starter Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 010966571 | 🇺🇸 US 🇨🇦 CA | 2-pin connector | View on Amazon |
This table covers the Clutch Pedal Position / Starter 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: HELLA 010966571.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | CBS2318 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
| WELLS | 1S13861 | 🇺🇸 US 🇨🇦 CA | without Fog Lights | 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.
2 Dimmer Switch parts for the 2018 Nissan Leaf come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS CBS2318 and WELLS 1S13861.
Door Jamb Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 651395 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | AW1098 | 🇺🇸 US 🇨🇦 CA | Front And Rear | View on Amazon |
| WELLS | 1S17917 | 🇺🇸 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.
3 Door Jamb Switch parts for the 2018 Nissan Leaf come from 3 brands — ROSTRA, STANDARD MOTOR PRODUCTS and WELLS.
This group includes ROSTRA 651395, STANDARD MOTOR PRODUCTS AW1098 and WELLS 1S17917.
Door Lock Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DWS1689 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| WELLS | 1S13369 | 🇺🇸 US 🇨🇦 CA | Front 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.
2 Door Lock Switch parts are listed for the 2018 Nissan Leaf, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS DWS1689 and WELLS 1S13369.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | CBS2318 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
| WELLS | 1S13861 | 🇺🇸 US 🇨🇦 CA | without Fog Lights | 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.
2 Headlamp Switch parts for the 2018 Nissan Leaf come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS CBS2318 and WELLS 1S13861.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 600020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HR159T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | HR159 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1R1564 | 🇺🇸 US 🇨🇦 CA | Mounting Hardware Included: No | 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.
4 Horn Relay parts for the 2018 Nissan Leaf come from 3 brands — STANDARD MOTOR PRODUCTS, ROSTRA and WELLS.
Part numbers include ROSTRA 600020, STANDARD MOTOR PRODUCTS HR159T and STANDARD MOTOR PRODUCTS HR159, among others listed above.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S17856 | 🇺🇸 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.
This group shows a single part: WELLS 1S17856.
Multi-Function Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1R1921 | 🇺🇸 US 🇨🇦 CA | Blue | 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 2018 Nissan Leaf — WELLS 1R1921.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | DWS1689 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| WELLS Popular | 1S13369 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| ROSTRA | 660703 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| ROSTRA | 661505 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2299 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| VEMO | V38730069 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| WELLS | 1S12964 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| WELLS | 1S14427 | 🇺🇸 US 🇨🇦 CA | Front Left | 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.
8 Power Window Switch parts are listed for the 2018 Nissan Leaf, from WELLS, STANDARD MOTOR PRODUCTS, ROSTRA and 1 other brand. STANDARD MOTOR PRODUCTS DWS1689 carries the "Popular" badge.
Listed part numbers: STANDARD MOTOR PRODUCTS DWS1689, WELLS 1S13369 and ROSTRA 660703, plus the other parts above.
Seat Heater Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 661867 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| WELLS | 1S14194 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
This table covers the Seat Heater 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 Seat Heater Switch parts for the 2018 Nissan Leaf come from 2 brands — ROSTRA and WELLS.
Part numbers include ROSTRA 661867 and WELLS 1S14194.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | CBS2318 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
| VEMO | V38730057 | 🇺🇸 US 🇨🇦 CA | SL Model or SV Modelwith indicator function | 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.
2 Turn Signal Switch parts are listed for the 2018 Nissan Leaf, from STANDARD MOTOR PRODUCTS and VEMO.
Listed part numbers: STANDARD MOTOR PRODUCTS CBS2318 and VEMO V38730057.
Wiper / Washer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | CBS2318 | 🇺🇸 US 🇨🇦 CA | without Fog Lightswith Automatic Headlights | View on Amazon |
| WELLS | 1S13861 | 🇺🇸 US 🇨🇦 CA | Frontwithout Fog Lights | 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.
2 Wiper / Washer Switch parts for the 2018 Nissan Leaf come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS CBS2318 and WELLS 1S13861.
Buying Electrical Switch & Relay Parts for a 2018 Nissan Leaf
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 ELECTRIC 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 2018 Nissan Leaf?
Our catalog currently lists 42 electrical switch & relay parts for the 2018 Nissan Leaf across 17 subcategories and 10 brands, covering the ELECTRIC engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2018 Nissan Leaf?
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 2018 Nissan Leaf 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 2018 Nissan Leaf?
Every part on this page is matched to the ELECTRIC 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 2018 Nissan Leaf
Electrical Switch & Relay Parts for Other Nissan Leaf 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.