Denso Upstream O2 Sensor - 4.0L for 2015-2024 Toyota 4Runner models.

Denso oxygen sensors feature an aluminum-oxide trap layer to protect the ceramic from silicone and lead poisoning, preventing damage to the platinum electrode. Double protection cover maintains proper unit temperature for quicker response times and protects the ceramic element from contamination. Stainless steel housing resists corrosion and contamination with a rugged, watertight body. Porous PTFE filter allows atmospheric oxygen the enter the sensor without permitting water or engine contaminants to seep into the casing. Denso o2 sensors meet or exceed OE specifications.

• Mfr Label - Air / Fuel Ratio Sensor - OE Style
• Wiring Harness Length - 9.92 in
• Sensor Type - Wide-Band
• Universal Or Specific Fit - Specific
• Wire Quantity - 4
• Grade Type - Standard Replacement

Fits

• 2015-2024 Toyota 4Runner