Denso IW20TT 4709 Double Needle Iridium Spark Plug, precision ignition improves power

For various Toyota and Lexus models from 2000 onward, including Camry 2.4L, Crown 3.0L, and Lexus ES300, displacement from 2.0L to 3.5L: IW20TT 4709 double-needle iridium spark plugs improve ignition design, significantly boosting combustion efficiency and power response while reducing carbon buildup. OEM number IW20TT 4709; no OEM substitutions; verify only by this number. Replacement is moderate; recommended every 80,000–100,000 km; torque to 25–30 N·m. For B2B buyers, double-needle iridium extends life to over 100,000 km; suitable for high-mileage fleets and bulk procurement to reduce maintenance frequency.