Oxygen Sensor Socket Set 22mm O2 Wrench Kit - Compact Access Tool

In this review the OEMTOOLS 37110 Oxygen Sensor Socket Set is evaluated as a practical specialty tool for DIY mechanics and professional technicians who need a straightforward way to remove and install oxygen sensors without cutting wiring. The biggest reason to buy is the slotted 22 mm socket with an offset, side access design that lets the user work around tight exhaust manifolds and leave the wiring harness connected, saving time and reducing risk of wire damage.

Key Features

• Offset slotted socket: the side cutout and low profile design allow access to sensors in tight spaces while keeping the harness attached.
• 22 mm 6 point fit: the standard 22 millimeter, or 7/8 in, 6 point socket fits a broad range of import and domestic oxygen sensors for wide compatibility.
• Multiple drive options: included 3/8 in drive, 3/8 in crowfoot, and 1/2 in drive crowfoot provide compatibility with common ratchets and breaker bars.
• Durable construction: solid steel with chrome plating and black oxide finish resists rust and holds up to repeated use in a garage environment.
• Wire drive gate: the gate design permits side access to the sensor wiring to prevent pulling or damaging the harness during removal.

Who It's For

The kit is best for home mechanics, independent shops, and technicians who often work on exhaust or oxygen sensors and need a compact, specialty socket that avoids disconnecting wiring harnesses. It is particularly useful when space is limited around exhaust manifolds or when an inline sensor sits close to other components.

Those who should look elsewhere include technicians who regularly face extremely corroded or rounded sensors that require impact extraction or larger breaker bar leverage beyond a crowfoot, and users who need a full multi-size O2 socket set beyond the single 22 mm offering.

Pros & Cons

Pros

• Allows sensor removal with the harness attached, reducing risk of wire damage during service.
• Multiple drive options make it compatible with common 3/8 in and 1/2 in tools for flexibility.
• Solid steel construction with protective finishes offers good resistance to rust and wear.

Cons

• Fitment reports are mixed; some users may find the 22 mm socket feels loose on certain sensors.

Specifications

Our Verdict

The OEMTOOLS 37110 Oxygen Sensor Socket Set is a worthwhile, value-minded specialty tool for anyone who needs to service O2 sensors without detaching the wiring harness. It combines a practical offset slotted 22 mm socket with multiple drive options and durable finishes, making it good value for routine sensor jobs, though technicians facing badly seized sensors may need heavier extraction tools.

Frequently Asked Questions

Will this fit all oxygen sensors?
The kit centers on a 22 mm (7/8 in) socket which fits most import and domestic O2 sensors, but some vehicles may use nonstandard sizes.

Can the sensor be removed with the wiring connected?
Yes, the slotted, side access design and wire drive gate let you install or remove sensors without detaching the wiring harness.

Is the finish rust resistant?
The tools use chrome plating and black oxide to resist rust and corrosion for longer life.