The 2026 Kia K5 has 7 electrical bulb & socket parts with verified fitment on this page — 3 part types and 1 brand, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2026 Kia K5, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. All 7 listed parts are Back Up / Reverse Lamp Bulb (3 parts), Tail Lamp Bulb (2 parts) and Turn Signal Lamp Bulb (2 parts).
The 2026 Kia K5 was sold with both the 2.5L L4 and the 2.5L L4 Turbocharged. All 7 parts on this page fit every engine.
Every electrical bulb & socket part listed for the 2026 Kia K5 comes from SYLVANIA. Quality grades include Extended Life, Standard Replacement and Extra Bright.
Each part number listed for the 2026 Kia K5 opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 921LL | 🇺🇸 US | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 921ST | 🇺🇸 US | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 921 | 🇺🇸 US | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
SYLVANIA supplies the 3 Back Up / Reverse Lamp Bulb parts for the 2026 Kia K5. All of them fit every engine offered in the 2026 K5.
The Extended Life section lists 1 option from SYLVANIA — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 921ST is listed in this group.
The Standard Replacement section lists 1 option from SYLVANIA — built to original-equipment specification. SYLVANIA 921 is listed in this group.
Part numbers include SYLVANIA 921LL, SYLVANIA 921ST and SYLVANIA 921.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 7528LL | 🇺🇸 US | Long LifeBase Type: BAY15D | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 7528 | 🇺🇸 US | with Incandescent Tail Lights | View on Amazon |
This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
2 Tail Lamp Bulb parts for the 2026 Kia K5 come from SYLVANIA. Every part fits both the 2.5L L4 and the 2.5L L4 Turbocharged.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 7528LL.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 7528.
Listed part numbers: SYLVANIA 7528LL and SYLVANIA 7528.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 7507LL | 🇺🇸 US | AmberLong Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2026 K5 engines | 7507 | 🇺🇸 US | Rearwith Incandescent Tail Lights | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
SYLVANIA supplies both parts for the 2026 Kia K5. All of them fit every engine offered in the 2026 K5.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7507LL is listed in this group.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 7507 is listed in this group.
This group includes SYLVANIA 7507LL and SYLVANIA 7507.
Buying Electrical Bulb & Socket Parts for a 2026 Kia K5
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits both the 2.5L L4 and the 2.5L L4 Turbocharged.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Back Up / Reverse Lamp Bulb and Tail Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2026 Kia K5?
Our catalog currently lists 7 electrical bulb & socket parts for the 2026 Kia K5 across 3 subcategories and 1 brand, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2026 Kia K5 engines?
No. On this page every electrical bulb & socket part fits both the 2.5L L4 and the 2.5L L4 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2026 Kia K5?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. 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, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
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 2026 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 2026 Kia K5?
Every part on this page already fits both the 2.5L L4 and the 2.5L L4 Turbocharged. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Kia K5
Electrical Bulb & Socket Parts for Other Kia K5 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.