SMP Vacuum Operated Switch Kit

Standard Motor Products vacuum-operated electrical switch (VOES) kit with self-assembly design that lets you select calibration levels for custom tuning. Engineered from high-tech thermoplastics and factory-calibrated, each unit is vacuum-tested for accuracy and reliability.

Features

• Self-assembly kit with preset calibration levels
• 100% vacuum tested for accuracy
• Includes bracket, crimp terminals, and installation instructions
• High-tech engineered thermoplastic construction

Specifications

• Brand: Standard Motor Products (SMP)
• Manufacturer Part #: MCVOS4
• UPC: 091769544560
• Length: 4.9 in
• Width: 3.35 in
• Height: 2.7 in
• Weight: 0.21 lbs

Frequently Asked Questions

What is a vacuum-operated switch used for?

VOES controls emission systems and fuel delivery based on engine vacuum, allowing tuners to dial in idle and cruise characteristics on carbureted or early fuel-injected engines.

What calibration levels are available in this kit?

This is a self-assembly kit with preset calibration options — select the level that matches your specific engine tuning needs. Consult the included instructions for calibration specifications.

What's included in the kit?

The vacuum switch, mounting bracket, crimp terminals, and detailed installation instructions for assembly and wiring.

Is this vacuum tested?

Yes — each unit is 100% factory vacuum-tested to verify calibration accuracy before shipment.