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.
2004 Mazda RX8 2RTR-1.3LFACTORY OEM SERVICE PROCEDURE
Spark Plug: Specifications
Spark Plug
Type NGK
Standard Plug
Leading Side Plug RE7A-L
Trailing Side Plug RE9B-T
Electrode Gap 1.15 - 1.25 mm (0.045-0.049 in)
Maximum Electrode Gap 1.5 (0.059 in) Leading Side
Maximum Electrode Gap 1.4 (0.055 in) Trailing Side
Torque 12.8-17.7 Nm (9.4 - 13.1 ft.lb)
Type NGK
Standard Plug
Leading Side Plug RE7A-L
Trailing Side Plug RE9B-T
Electrode Gap 1.15 - 1.25 mm (0.045-0.049 in)
Maximum Electrode Gap 1.5 (0.059 in) Leading Side
Maximum Electrode Gap 1.4 (0.055 in) Trailing Side
Torque 12.8-17.7 Nm (9.4 - 13.1 ft.lb)
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.