1984 Toyota 4Runner Oxygen Sensors & Components
- Bosch®Premium Narrow-band Oxygen SensorToyota 4Runner 1984, Premium Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen...OE Identical ConnectorCompact Design$42.54
- NTK®Oxygen SensorToyota 4Runner 1984, Oxygen Sensor by NTK®. Position: Upstream. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor element then sends...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$32.42
- Bosch®Narrow-band Oxygen SensorToyota 4Runner 1984, Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which...OE-EquivalentOE Style connectors and wire lengths$30.48
- Dorman®Help™ Oxygen Sensor GasketToyota 4Runner 1984, Help™ Oxygen Sensor Gasket by Dorman®. Easily and affordably restore the engine to safe, proper functioning with Dorman's Oxygen Sensor Gasket. It s sold separately, enabling you to replace only the failed...Resilient against fluctuations in under hood temperaturesHigh heat resistance$4.31
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$10.40 - $12.18
- Spectra Premium®Oxygen SensorToyota 4Runner 1984, Oxygen Sensor by Spectra Premium®. Position: Upstream. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the...Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements$16.35
- ReplacementOxygen SensorToyota 4Runner 1984, Oxygen Sensor by Replacement. Location: Before Catalytic Converter. When an oxygen sensor fails, you're facing poor fuel economy, rough running, and even potential catalytic converter damage. The Replacement brand...Direct-fit replacementOE-level function and durabilityCall for Pricing
- Herko®Oxygen SensorToyota 4Runner 1984, Oxygen Sensor by Herko®. Position: Upstream. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle installation and help restore proper fuel system...Will help optimize your vehicle’s performance and fuel efficiencyBuilt using high-grade materials for ultimate quality and durability$27.08
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If you are looking for a 1984 Toyota 4Runner oxygen sensor, don't go any further! At our store, we carry a wide array of oxygen sensors from such world-renowned manufacturers as Denso, Bosch, Spectra Premium, Dorman, and many others. All oxygen sensors you'll find on this page feature direct OE connectors and can be installed on your 1984 4Runner without any additional modifications. We also offer a variety of related products, namely wire extension harnesses, gaskets, and fittings. Choose products you need and let your Toyota operate at its peak!
So, why are oxygen sensors that important? Often referred to as O2 sensors or lambda sensors, oxygen sensors provide the engine management system with accurate inputs about how fuel mixture is burning. Using this data, vehicle's ECU can regulate air/fuel mixture. Primary 1984 Toyota 4Runner oxygen sensor measures the content of oxygen in exhaust gases, and secondary O2 sensors monitor the operation of a catalytic converter. If any of these O2 sensors fails, ECU can no longer get correct signal outputs for the proper air to fuel ratio, which can result in poor engine performance and decreased gas mileage.