Orion Motor Tech 4 CFM AC Vacuum Pump & Gauge Kit — Copper Motor, R134a/R12/R22/R502

The Orion Motor Tech OMT 4 CFM AC Vacuum Pump and Gauge Set is a complete automotive and HVAC evacuation kit that combines a 4 CFM copper-motor vacuum pump, a 3-way manifold gauge, leak detector, taps, hoses, and accessories for R134a, R12, R22 and R502 systems.

This kit gathers the tools most technicians and DIYers need to evacuate, test, charge and maintain small automotive and indoor HVAC systems. Built with a copper-wound motor for steady performance, a durable aluminum body, and a color-coded, high-accuracy manifold, the set focuses on dependable evacuation speed, clear system readings and convenient serviceability. Everything stores in a transport case so you can take it to the job and keep parts organized between uses.

How fast and effectively does this pump evacuate an AC system?

The vacuum pump delivers a 4 CFM flow driven by an all-copper motor for consistent torque during evacuation. Its aluminum alloy housing helps dissipate heat and resists corrosion, while a cooling fan maintains operating temperature for longer runs. Brass-fitted tethered safety caps and a bottom drain valve simplify oil handling and reduce leak risks.

• 4 CFM continuous flow for typical automotive/mini-split evacuations
• All-copper motor for reliable performance under load
• Aluminum case and cooling fan to manage heat during long pulls
• Bottom drain and sight glass for easy oil checks and changes

What tools and fittings are included for charging and leak detection?

The set pairs a three-way manifold gauge with a leak detector and a selection of R134a taps and quick couplers so you can diagnose, seal and recharge systems. Color-coded hoses feature multiple reinforcement layers for pressure resilience and clear identification during service. The manifold provides real-time pressure monitoring to guide safe charging and diagnosis.

• 3-way manifold gauge with clear scales and sturdy brass ports
• R134a self-sealing and puncture-style valve taps included
• Three color-coded charging hoses built with four reinforcement layers
• Leak detector and 0.26 qt. vacuum oil to start work immediately

Which refrigerants and systems can I service with this kit?

This kit supports common refrigerants—R134a, R12, R22 and R502—so it’s suitable for many automotive and small indoor HVAC jobs. It’s not intended to replace specialty or high-capacity shop equipment, but covers a wide range of routine maintenance tasks and small repairs. The included fittings and hoses make it versatile for most passenger vehicles and light HVAC systems.

• Compatible with R134a, R12, R22, R502 refrigerants
• Designed for automotive A/C and smaller residential/commercial units
• Hoses rated to 600 psi working pressure (3000 psi burst tested)
• Compact case for job-site transport and storage

How does the kit make maintenance and transport easier?

Thoughtful design elements reduce setup time and mess: a sight glass for quick oil level checks, a bottom drain valve for controlled oil changes, and tethered caps to prevent lost parts. The durable carrying case and accessory bag keep gauges, hoses and small fittings protected and organized during transport. These features lower the chance of downtime caused by missing or damaged components.

• Sight glass and drain valve for low-fuss oil servicing
• Tethered brass safety caps to prevent spills and loss
• Rugged case and accessory bag for neat storage and transport
• Includes starter vacuum oil to get you working immediately

Who is this for: The Orion Motor Tech OMT 4 CFM kit is aimed at auto technicians, HVAC service pros and experienced DIYers who need a portable, well-rounded evacuation and charging solution for common refrigerants. It suits routine maintenance, leak testing and recharging on passenger vehicles and small indoor systems rather than heavy industrial applications. If you need a reliable, transportable toolkit with accurate gauges and robust fittings, this set covers the essentials.