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.

2003 Mitsubishi Lancer EvolutionFACTORY OEM SERVICE PROCEDURE

Spark Plugs

SPARK PLUG TYPE

Application

Denso No.

NGK No.

Champion

Diamante

PK16PR-P11

PFR5G-11

RC10PYP4

Eclipse

2.4L

K16PR-U11

BKR5E-11

RC10YC4

3.0L

With Variable Induction Control

SK20PR-B8

IFR6B

⁽¹⁾

Without Variable Induction Control

PK16PR11

PFR5G-11

RC10PYP4

Galant

2.4L

K16PR-U11

BKR5E-11

RC10YC4

3.0L

PK16PR11

PFR5G-11

RC10PYP4

Lancer & Outlander

K16PR-U11

BKR5E-11

RC10YC4

Montero

SK20PR-A8

IFR6S

⁽¹⁾

Montero Sport

SK16PR-A11

N/A

⁽¹⁾	Information not available from manufacturer.

SPARK PLUG SPECIFICATIONS

Application

⁽¹⁾ Gap In. (mm)

Maximum Gap In. (mm)

Torque Ft. Lbs. (N.m)

Except Eclipse Equipped With Variable Induction Control & Montero

.039-.043 (1.0-1.1)

.051 (1.3)

14-22 (21-29)

Eclipse Equipped With Variable Induction Control & Montero

.028-.031 (.7-.8)

.039 (1.0)

14-22 (21-29)

⁽¹⁾	DO NOT adjust gap on Platinum-tipped or Iridium-tipped spark plugs.

Factory Service Tools

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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.