3351-VS22 Vacuum Switch Socket | ⅜” Dr. 22mm Slotted

3351-VS22 Vacuum Switch Socket is built for mission-critical engine diagnostics:

• 7mm Side-Access Slot: The primary advantage of the Vacuum Switch Socket is the vertical cut-out. This slot allows the technician to bypass delicate sensor wires, ensuring that oxygen sensors and vacuum-operated thermal switches can be serviced without damaging the electrical connections or requiring a full harness tear-down.
• Precision 22mm (7/8″) Hex Fitment: Designed with a 6-point (hex) internal geometry, the Vacuum Switch Socket grips the flat sides of the fastener rather than the corners. This prevents “rounding” of soft sensor bodies, which are often exposed to high heat and corrosion.
• Industrial Chrome Vanadium Construction: Forged from high-grade Cr-V steel, the socket is heat-treated for maximum torsional resilience. This ensures it can handle the high breakaway torque required for sensors that have been heat-cycled into engine blocks.

B2B Procurement & Engine MRO Efficiency

• Essential for Computerized Engine Service: The Vacuum Switch Socket is a mandatory asset for Diagnostic Specialists and Fleet Maintenance Departments servicing modern PFI (Port Fuel Injection) and GDI (Gasoline Direct Injection) engines.
• 3/8″ Square Drive Standardization: Seamlessly integrates with standard professional ratchets, breaker bars, and extension rods, providing the reach needed for recessed manifold sensors.
• Industrial Anti-Corrosion Finish: Every 3351-VS22 is finished with a professional-grade coating to withstand the chemical exposure and thermal stress typical of automotive engine bays.