MateAuto 16-Piece Oxygen Sensor Socket Set with Thread Chaser — Slotted Sockets & 3/8"/1/2" Drives

MateAuto's 16 Piece Oxygen Sensor Socket Set with Thread Chaser is a complete, professional-grade kit for removing and installing oxygen sensors, fuel injectors, oil pressure units, and thermal switches in tight engine bays.

This compact, durable kit groups every common oxygen sensor socket size and the specialty tools technicians need into one organized case. Engineered from heat-treated chrome molybdenum (CR-MO) and chrome vanadium (CR-V) steel with corrosion-resistant finishes, the set balances strength with accessibility: slotted sockets to protect wiring, 6- and 12-point openings for reliable grip, plus extensions and a universal joint to reach deeply recessed sensors on European vehicles like Mercedes, VW, Audi, and BMW.

How does this kit help when sensors are hard to reach?

The set includes both 3/8" and 1/2" drive options plus a universal joint and 3" and 6" extensions, letting you work around exhaust manifolds, heat shields, and tight engine compartments. The combination of socket lengths and the adapter lets standard ratchets and breaker bars (not included) access recessed fasteners without removing nearby components.

• 3" and 6" extensions for deep-set sensors
• 1/2" universal joint for angled access
• 3/8" and 1/2" square drives compatible with common tools
• 3/8" to 1/2" adapter for flexible drive use

Which sizes and specialty tools are included for different vehicle models?

This 16-piece collection covers the most frequent oxygen sensor sizes and includes two thread chasers to restore damaged threads. Ten sockets span metric and imperial sizes (22mm, 27mm, 29mm, 7/8", 1", 1-1/16" and others), while the thread chasers (M12×1.25 and M18×1.5) help prepare housings for accurate sensor reinstallation.

• Ten sockets: common 22mm–29mm and imperial equivalents
• Thread chasers: M12×1.25 and M18×1.5
• 3/8" to 1/2" adapter for cross-drive compatibility
• Laser-etched size markings for quick identification

What design features protect sensors and wiring during service?

Sockets in this set are slotted to allow wiring to remain attached during removal and installation, reducing the risk of broken leads. Six- and twelve-point openings deliver secure engagement on hex surfaces, minimizing rounding, while the heat-treated alloy construction tolerates the high torque often found on oxygen sensor fittings.

• Slotted sockets for intact sensor wiring
• 6- and 12-point openings to prevent fastener rounding
• Heat-treated CR-MO/CR-V steel for high torque resistance
• Corrosion-resistant coating for longevity in shop conditions

How is the kit stored and transported?

All pieces fit into a compact, sturdy plastic carrying case with molded slots so each socket and accessory stays organized during transport and on the job. The case keeps sizes visible and accessible, reducing search time and preventing tool loss between jobs or vehicles.

• Molded plastic case with dedicated slots for each piece
• Laser-etch markings visible while stored in case
• Compact footprint for easy toolbox or trunk storage
• Durable packaging protects tools from shop wear

Who is this for: The MateAuto 16 Piece Oxygen Sensor Socket Set with Thread Chaser is aimed at professional mechanics, mobile technicians, and knowledgeable DIYers who work on European and other modern vehicles where sensors sit in confined spaces. If you routinely replace oxygen sensors, fuel injectors, or thermal switches and need a single, rugged kit that reduces disassembly and protects wiring, this set provides the sizes, reach, and durability required for efficient, repeatable results.