7 Piece Automotive Sensor and Fuel Injector Socket Set

When a check-engine light traces back to a lambda oxygen sensor, a sticking fuel injector, or a faulty oil pressure sender, you need sockets shaped for those specific fittings — not a drawer full of general six-points that slip, crack housings, or shear wires.

This tray delivers seven dedicated pieces that cover the most common sensor and service fasteners found across modern engine bays. Three of the sockets address lambda oxygen sensors in straight, offset, and heated configurations, so you can tackle upstream and downstream positions regardless of exhaust routing. The fuel injector socket and the vacuum switch socket handle their respective fittings without the improvised extensions or modified sockets many technicians resort to. An oil pressure sender socket rounds out the collection for gauge and sensor swaps.

Drive sizes split between 1/2 inch and 3/8 inch, matching the torque and clearance demands of each application. The 1/2 inch drive pieces pair with higher-torque ratchets for seized exhaust-mounted sensors, while the 3/8 inch drive pieces offer the compactness needed in tight engine-bay quarters around vacuum lines and oil galleries.

Every socket sits in a molded red plastic tray designed for tool tray storage systems. Drop the tray into a roller cabinet or service cart and every piece stays visible, separated, and ready. Total loaded weight is 2050 g (roughly 4.5 lb), so the whole tray moves easily from bench to lift.

If your 1/2 drive socket set or 3/8 drive collection already handles standard hex fasteners, this tray fills the specialty gap that general sets leave open — purpose-shaped sockets for the sensor and injector work that keeps modern vehicles running.