YCT 7-Piece Oxygen Sensor Socket Set — 22mm, 27mm, 29mm Slotted & Deep Sockets for O2 Sensor Removal

YCT's 7-piece oxygen sensor socket set is a compact, high-strength kit designed to remove and install O2 sensors and related pressure switches across most vehicles.

Whether you're a DIY mechanic or a professional technician, having the right sockets makes O2 sensor service faster and less frustrating. This kit groups the most commonly needed sizes—22mm (7/8"), 27mm, and 29mm—into a single organized set, including both slotted and deep designs so you can work around wiring harnesses, tight exhaust bends, and recessed sensors with confidence.

Which sockets are included and what are they used for?

The kit contains seven sockets: a 1/2" drive 27mm 12-point, a 1/2" drive 29mm 6-point with slot, long and short 22mm (7/8") slotted oxygen sensor sockets, and several 3/8" drive oil/pressure switch sockets in deep and standard lengths. Each piece targets specific sensor or switch sizes found on passenger cars and light trucks.

• 1/2" drive x 27mm (12-point) oil pressure sending unit socket
• 1/2" drive x 29mm (6-point) slotted pressure/vacuum switch socket
• 1/2" drive long 22mm (7/8") slotted O2 sensor socket
• 3/8" drive short and long 22mm (7/8") slotted O2 sensor sockets
• 3/8" drive deep 27mm & 1" oil pressure socket (fits up to 2-5/8" depth)

How does the slotted design help with sensor removal?

Slotted sockets let you remove oxygen sensors while the wiring harness remains attached, preventing wire damage and saving time. The slots also reduce the need for extensions or special adapters in cramped engine bays.

• Slot accommodates sensor wiring so harness stays connected
• Compact offset shape improves access in tight spaces
• Multiple lengths cover recessed and shallow sensors

What materials and build quality can I expect?

YCT manufactures these sockets from chrome-molybdenum steel, chosen for high torque tolerance and durability under repeated use. Precision casting ensures accurate fit to hex flats and winding surfaces, which helps reduce rounding of sensor nuts.

• Chrome-moly construction for strength and longevity
• Precision-machined points for secure engagement
• Heat-treated and finished to resist corrosion

Will this kit work on my vehicle and how do I use the pieces effectively?

The assortment covers virtually all common O2 sensor and many oil/pressure switch sizes used on cars and light trucks. Use the slotted 22mm sockets for oxygen sensors, the larger 27mm/29mm pieces for pressure or vacuum switches, and the deep 27mm socket for recessed units. Always apply penetrating lubricant and steady, even torque when loosening stuck sensors.

• 22mm sockets for standard oxygen sensors (short and long options)
• 27mm and 29mm for pressure sending units and some switches
• 3/8" and 1/2" drive compatibility for ratchets and breakers

Who is this for: The YCT 7-piece oxygen sensor socket kit is made for weekend DIYers, independent mechanics, and fleet technicians who need a compact, reliable set for emissions sensor swaps and routine engine work. If you service oxygen sensors, oil pressure senders, or vacuum/pressure switches, this kit consolidates the most-used sizes into one durable collection that helps avoid cutting harnesses or damaging fittings.