Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 Kia Optima V6-2.7LFACTORY OEM SERVICE PROCEDURE
Spark Plug: Service and Repair
Replacement
Spark Plug
1. Remove the ignition coil connector(A).
2. Remove the ignition coil.
3. Using a spark plug socket, remove the spark plug.
CAUTION:
Be careful that no contaminants enter through the spark plug holes
4. When replacing the spark plug, always use the long reach type spark plug.
(1) Color Marking (Tip)
A. [2.7L]
Unleaded : Yellow Marking
Leaded : Green Marking
(2) Length(Tip-Tip / PT Length)
A. [2.7L]
B. 83.2mm/ 26.5mm
C. Others: The length is different from the specification above.
(3) Part ID
A. [U2.7]
Leaded : ILFR5B11
Leaded : LFR5A
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.