The 2021 Kia K5 has 30 electrical parts with verified fitment on this page — 7 part types and 16 brands, covering both the 1.6L L4 Turbocharged and the 2.5L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 Kia K5, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 25 parts of the 30 listed are Alternator / Generator (9 parts), Starter Motor (9 parts) and Battery (7 parts). The other 4 part types cover the remaining 5 parts.
The 2021 Kia K5 was sold with both the 1.6L L4 Turbocharged and the 2.5L L4 Turbocharged. 9 parts fit every engine; the other 21 are engine-specific. Each part shows which engine(s) it fits.
16 brands supply electrical parts for the 2021 Kia K5, led by FVP (5 parts), PURE ENERGY (4 parts) and WAI GLOBAL (3 parts), plus 13 more brands. Quality grades include Remanufactured and New.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Kia K5. 5 parts have it, including TYC 241007 (Alternator / Generator) and DEKA 9A48 (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Popular Fits: 1.6L L4 Turbocharged | 241007 | 🇺🇸 US 🇨🇦 CA | 210 Amps | View on Amazon |
| WAI GLOBAL Popular Fits: 1.6L L4 Turbocharged | 41007N | 🇺🇸 US 🇨🇦 CA | 130 Amps | View on Amazon |
| WAI GLOBAL Fits: 2.5L L4 Turbocharged | 21956N | 🇺🇸 US 🇨🇦 CA | 150 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 1.6L L4 Turbocharged | 11839 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: 2.5L L4 Turbocharged | 10409 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 1.6L L4 Turbocharged | 11839 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.5L L4 Turbocharged | 10409 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 1.6L L4 Turbocharged | 11539 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 1.6L L4 Turbocharged | 42315 | 🇺🇸 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 for the 2021 Kia K5 come from 6 brands — WAI GLOBAL, FVP, PURE ENERGY and 3 other brands. The "Popular" part is TYC 241007.
The New section lists 3 options from WAI GLOBAL and TYC — brand-new units rather than rebuilt ones. TYC 241007 is listed in this group.
The Remanufactured section lists 6 options from FVP, PURE ENERGY, REMY and 1 other brand — factory-rebuilt units with new wear components. FVP 11839 is listed in this group.
This group includes TYC 241007, WAI GLOBAL 41007N and WAI GLOBAL 21956N and the remaining parts above.
Alternator / Generator Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 1.6L L4 Turbocharged | 48705 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LITENS Fits: 1.6L L4 Turbocharged | 920120A | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt.
2 Alternator / Generator Pulley parts are listed for the 2021 Kia K5, from CONTINENTAL and LITENS.
Part numbers include CONTINENTAL 48705 and LITENS 920120A.
Anti-Theft Siren
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 K5 engines | 957101R000 | 🇺🇸 US | Front | View on Amazon |
This table covers the sirens in the anti-theft system.
One part is listed for the 2021 Kia K5 — HYUNDAI 957101R000.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: all 2021 K5 engines | 9A48 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| LUCAS Popular Fits: all 2021 K5 engines | LBAGM004A | 🇺🇸 US 🇨🇦 CA | BCI Group: 48AGM | View on Amazon |
| ACDELCO Fits: all 2021 K5 engines | 48AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 48 | View on Amazon |
| ACDELCO Fits: all 2021 K5 engines | 48AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| EXIDE Fits: all 2021 K5 engines | MXH6L348 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| FVP Fits: all 2021 K5 engines | P48AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 48 | View on Amazon |
| P1MAX Fits: all 2021 K5 engines | PMAGMH648 | 🇺🇸 US 🇨🇦 CA | BCI Group 48 AGM760 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.
7 Battery parts are listed for the 2021 Kia K5, from ACDELCO, DEKA, LUCAS and 3 other brands. DEKA 9A48 carries the "Popular" badge. All of them fit every engine offered in the 2021 K5.
Part numbers include DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM, among others listed above.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 K5 engines | PPS316 | 🇺🇸 US 🇨🇦 CA | Front And Rear | View on Amazon |
This table covers the ultrasonic park-aid sensors in the bumper. 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.
This group shows a single part: STANDARD MOTOR PRODUCTS PPS316.
Speed Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.6L L4 Turbocharged | 5055510 | 🇺🇸 US 🇨🇦 CA | Vehicle Speed | View on Amazon |
This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor.
One part is listed for the 2021 Kia K5 — DORMAN 5055510.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 1.6L L4 Turbocharged | 37070N | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 1.6L L4 Turbocharged | 12858 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| FVP Fits: 1.6L L4 Turbocharged | 12858 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 1.6L L4 Turbocharged | 16425 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 1.6L L4 Turbocharged | 52211 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 2.5L L4 Turbocharged | 12878 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.5L L4 Turbocharged | 12878 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY Fits: 2.5L L4 Turbocharged | 16580 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.5L L4 Turbocharged | 52247 | 🇺🇸 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.
9 Starter Motor parts for the 2021 Kia K5 come from 5 brands — PURE ENERGY, FVP, REMY and 2 other brands. The "Popular" part is PURE ENERGY 12858.
The New section: 1 option from WAI GLOBAL. WAI GLOBAL 37070N is listed in this group.
The Remanufactured section: 4 options from PURE ENERGY, FVP, REMY and 1 other brand. PURE ENERGY 12858 is listed in this group.
4 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include PURE ENERGY 12858 and WAI GLOBAL 37070N, among others listed above.
Buying Electrical Parts for a 2021 Kia K5
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: Alternator / Generator and Starter Motor .
Frequently Asked Questions
How many electrical parts fit the 2021 Kia K5?
Our catalog currently lists 30 electrical parts for the 2021 Kia K5 across 7 subcategories and 16 brands, covering both the 1.6L L4 Turbocharged and the 2.5L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2021 Kia K5 engines?
Some do. 9 parts fit every engine; the other 21 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 2021 Kia K5?
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 2021 Kia K5 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 Kia K5?
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 2021 Kia K5
Electrical Parts for Other Kia K5 Years
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