30 Electrical parts are listed for the 2018 Genesis G90, in 6 part types, covering both the 3.3L V6 Turbocharged and the 5.0L V8. Each one has a brand, a manufacturer part number and notes that say where it fits.
The electrical system on the 2018 Genesis G90 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Starter Motor (11 parts), Alternator / Generator (9 parts) and Battery (6 parts). The other 3 part types cover the remaining 4 parts.
The 2018 Genesis G90 was sold with both the 3.3L V6 Turbocharged and the 5.0L V8. 10 parts fit every engine; the other 20 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Genesis G90 electrical parts are PURE ENERGY (4 parts), REMY (4 parts) and TERREPOWER (4 parts), plus 13 more brands. Quality grades include Remanufactured and New.
6 parts on this 2018 Genesis G90 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WAI GLOBAL 21086N (Alternator / Generator) and DEKA 9A95R (Battery). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular Fits: 3.3L V6 Turbocharged | 21086N | 🇺🇸 US 🇨🇦 CA | 180 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 3.3L V6 Turbocharged | 11896 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 3.3L V6 Turbocharged | 11896 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 3.3L V6 Turbocharged | 11315 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 3.3L V6 Turbocharged | 42184 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 5.0L V8 | 11895 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.0L V8 | 11895 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 5.0L V8 | 11314 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 5.0L V8 | 42183 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
9 Alternator / Generator parts are listed for the 2018 Genesis G90, from FVP, PURE ENERGY, REMY and 2 other brands. WAI GLOBAL 21086N carries the "Popular" badge.
In the New grade, WAI GLOBAL supplies 1 part: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 21086N.
In the Remanufactured grade, FVP, PURE ENERGY, REMY and 1 other brand supply 4 parts: factory-rebuilt units with new wear components. A representative part number is FVP 11896.
4 ungrouped parts are not assigned to a grade, with the same engine-level match.
This group includes WAI GLOBAL 21086N and FVP 11896 and the remaining parts above.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: all 2018 G90 engines | 9A95R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| LUCAS Popular Fits: all 2018 G90 engines | LBAGM007A | 🇺🇸 US 🇨🇦 CA | BCI Group: 95RAGM | View on Amazon |
| ACDELCO Fits: all 2018 G90 engines | 95RAGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 95R | View on Amazon |
| EXIDE Fits: all 2018 G90 engines | MXH9L695R | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 95R (H9) | View on Amazon |
| MOTORCRAFT Fits: all 2018 G90 engines | BAGM95RH9 | 🇺🇸 US 🇨🇦 CA | Tested Tough AGMBCI Group 95R or BCI Group: 95R/H9 | View on Amazon |
| P1MAX Fits: all 2018 G90 engines | PMAGMH995R | 🇺🇸 US 🇨🇦 CA | BCI Group 95R AGM950 CCA | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
6 Battery parts for the 2018 Genesis G90 come from 6 brands — DEKA, LUCAS, ACDELCO and 3 other brands. The "Popular" part is DEKA 9A95R. Every part fits both the 3.3L V6 Turbocharged and the 5.0L V8.
Part numbers include DEKA 9A95R, LUCAS LBAGM007A and ACDELCO 95RAGM, among others listed above.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: all 2018 G90 engines | KI1319916 | 🇺🇸 US 🇨🇦 CA | Positive Terminal | View on Amazon |
| DORMAN Fits: all 2018 G90 engines | 926840 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
2 Battery Terminal parts for the 2018 Genesis G90 come from 2 brands — AUTOTECNICA and DORMAN. Every part fits both the 3.3L V6 Turbocharged and the 5.0L V8.
Part numbers include AUTOTECNICA KI1319916 and DORMAN 926840.
Fuse
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Fits: all 2018 G90 engines | AMI100 | 🇺🇸 US 🇨🇦 CA | Bolt-On Fuse100 Amps | View on Amazon |
This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse.
This group shows a single part: BUSSMANN AMI100.
HID Lighting Ballast
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2018 G90 engines | V20840043 | 🇺🇸 US 🇨🇦 CA | Includes: Ignitor, Gasket, Xenon Lamp | View on Amazon |
This table covers the HID Lighting ballasts.
One part is listed for the 2018 Genesis G90 — VEMO V20840043.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular Fits: 5.0L V8 | 34004N | 🇺🇸 US 🇨🇦 CA | To 05/23/2018 | View on Amazon |
| WAI GLOBAL Fits: 3.3L V6 Turbocharged | 34002N | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 3.3L V6 Turbocharged | 19558 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Popular Fits: 5.0L V8 | 19570 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| BOSCH Fits: 3.3L V6 Turbocharged | SR4196X | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| BOSCH Fits: 5.0L V8 | SR4198X | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: 5.0L V8 | 19570 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 3.3L V6 Turbocharged | 16275 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 5.0L V8 | 16276 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 3.3L V6 Turbocharged | 50005 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 5.0L V8 | 50004 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
11 Starter Motor parts are listed for the 2018 Genesis G90, from WAI GLOBAL, PURE ENERGY, BOSCH and 3 other brands. WAI GLOBAL 34004N carries the "Popular" badge.
New: 2 parts, from WAI GLOBAL. A representative part number is WAI GLOBAL 34004N.
Remanufactured: 9 parts, from PURE ENERGY, BOSCH, REMY and 2 other brands. A representative part number is PURE ENERGY 19558.
Buying Electrical Parts for a 2018 Genesis G90
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Some electrical 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Starter Motor and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 2018 Genesis G90?
Our catalog currently lists 30 electrical parts for the 2018 Genesis G90 across 6 subcategories and 16 brands, covering both the 3.3L V6 Turbocharged and the 5.0L V8. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2018 Genesis G90 engines?
Some do. 10 parts fit every engine; the other 20 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 problems on a 2018 Genesis G90?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 Genesis G90 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 Genesis G90?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Genesis G90
Electrical Parts for Other Genesis G90 Years
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