This page lists 23 electrical switch & relay parts for the 2021 Genesis G70, across 8 part types, covering both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
The switch and relay system on the 2021 Genesis G70 covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Oil Pressure Sender / Switch (8 parts), Brake Light Switch (4 parts) and A/C Refrigerant Pressure Switch (2 parts). The other 5 part types cover the remaining 9 parts.
The 2021 Genesis G70 was sold with both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged. 17 parts fit every engine; the other 6 are engine-specific. Each part shows which engine(s) it fits.
9 brands supply electrical switch & relay parts for the 2021 Genesis G70, led by WELLS (11 parts), STANDARD MOTOR PRODUCTS (3 parts) and VEMO (2 parts), plus 6 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 Genesis G70. 2 parts have it, including STANDARD MOTOR PRODUCTS PS411 (Oil Pressure Sender / Switch) and WELLS 1S6857 (Oil Pressure Sender / Switch). Each part number opens a page with every vehicle that part fits.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2021 G70 engines | V52730043 | 🇺🇸 US 🇨🇦 CA | Fits FR Cooler - Dual Full Auto A/CDouble Pipe IHX | 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 V52730043.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 G70 engines | 97721D2000 | 🇺🇸 US | Included with liquid line, suction hose, discharge hose, hose and tube assembly | View on Amazon |
| UAC Fits: all 2021 G70 engines | SW9969C | 🇺🇸 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.
2 A/C Refrigerant Pressure Switch parts are listed for the 2021 Genesis G70, from HYUNDAI and UAC. All of them fit every engine offered in the 2021 G70.
Part numbers include HYUNDAI 97721D2000 and UAC SW9969C.
Brake Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 G70 engines | 93810G8100 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 G70 engines | SLS605 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: all 2021 G70 engines | V52730054 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: all 2021 G70 engines | 1S16380 | 🇺🇸 US 🇨🇦 CA | 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 2021 Genesis G70, from HYUNDAI, STANDARD MOTOR PRODUCTS, VEMO and 1 other brand. All of them fit every engine offered in the 2021 G70.
Listed part numbers: HYUNDAI 93810G8100, STANDARD MOTOR PRODUCTS SLS605 and VEMO V52730054, plus the other parts above.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G70 engines | 1S18001 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS Fits: all 2021 G70 engines | 1S18002 | 🇺🇸 US 🇨🇦 CA | with Rain Sensitive Wipers | 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 2021 Genesis G70 come from WELLS. Every part fits both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged.
This group includes WELLS 1S18001 and WELLS 1S18002.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G70 engines | 1S18001 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS Fits: all 2021 G70 engines | 1S18002 | 🇺🇸 US 🇨🇦 CA | with Rain Sensitive Wipers | 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 2021 Genesis G70 come from WELLS. Every part fits both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged.
Part numbers include WELLS 1S18001 and WELLS 1S18002.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 2.0L L4 Turbocharged | 2OPS0001 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 G70 engines | PS411T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 Turbocharged | 2561059 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 G70 engines | PS411 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 1Terminal Type: Blade | View on Amazon |
| WELLS Popular Fits: 2.0L L4 Turbocharged | 1S6857 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA Fits: 2.0L L4 Turbocharged | 501242 | 🇺🇸 US 🇨🇦 CA | Base Model or Elite or Prestige | View on Amazon |
| WELLS Fits: 3.3L V6 Turbocharged | 1S16077 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 3.3L V6 Turbocharged | 1816546 | 🇺🇸 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.
8 Oil Pressure Sender / Switch parts are listed for the 2021 Genesis G70, from STANDARD MOTOR PRODUCTS, WELLS, HOLSTEIN and 3 other brands. STANDARD MOTOR PRODUCTS PS411 carries the "Popular" badge. 2 parts fit every engine; the other 6 are engine-specific.
In the Economy grade, HOLSTEIN, STANDARD MOTOR PRODUCTS and WALKER PRODUCTS supply 3 parts: the catalog's value-priced group. A representative part number is HOLSTEIN 2OPS0001.
The Standard Replacement section lists 4 options from WELLS, STANDARD MOTOR PRODUCTS and ROSTRA — built to original-equipment specification. STANDARD MOTOR PRODUCTS PS411 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Part numbers include STANDARD MOTOR PRODUCTS PS411, HOLSTEIN 2OPS0001 and STANDARD MOTOR PRODUCTS PS411T, among others listed above.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G70 engines | 1S18001 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS Fits: all 2021 G70 engines | 1S18002 | 🇺🇸 US 🇨🇦 CA | 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.
WELLS supplies both parts for the 2021 Genesis G70. All of them fit every engine offered in the 2021 G70.
Part numbers include WELLS 1S18001 and WELLS 1S18002.
Wiper / Washer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G70 engines | 1S18001 | 🇺🇸 US 🇨🇦 CA | without Rain Sensitive Wipers | View on Amazon |
| WELLS Fits: all 2021 G70 engines | 1S18002 | 🇺🇸 US 🇨🇦 CA | with Rain Sensitive Wipers | 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 2021 Genesis G70 come from WELLS. Every part fits both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged.
Part numbers include WELLS 1S18001 and WELLS 1S18002.
Buying Electrical Switch & Relay Parts for a 2021 Genesis G70
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Some electrical switch & relay parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- 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: Oil Pressure Sender / Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Genesis G70?
Our catalog currently lists 23 electrical switch & relay parts for the 2021 Genesis G70 across 8 subcategories and 9 brands, covering both the 2.0L L4 Turbocharged and the 3.3L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2021 Genesis G70 engines?
Some do. 17 parts fit every engine; the other 6 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical switch & relay problems on a 2021 Genesis G70?
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 Genesis G70 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 Genesis G70?
First match the engine — each row shows which engine(s) the part fits. 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 Genesis G70
Electrical Switch & Relay Parts for Other Genesis G70 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.