Mastercool 53010-AUT Automotive Pressure Testing Regulator Kit, 38 inch Hose, Leak Testing Adapter

Mastercool 53010-AUT Automotive Pressure Testing Regulator Kit, 38 inch Hose, Leak Testing Adapter

• The Mastercool 53010-AUT is an automotive pressure testing regulator kit using nitrogen to test A/C systems for leaks when no refrigerant is present; includes high-pressure and low-pressure gauges, a 38-inch charging hose, leak testing adapter, R134a high-side coupler, and a blow molded storage case.
• Features:
  • Single-stage nitrogen pressure regulator (53001) with CGA580 inlet and 1/4 inch SAE flare outlet port, control valve to maintain pressure.
  • Two large 63 mm (2-1/2 inch) gauges with guards; high side gauge up to 4400 psig (300 bar), low side up to 1000 psig (70 bar).
  • 38 inch yellow nylon barrier charging hose (1/4 inch x 1/4 inch) rated for 800 psi working pressure, burst pressure of 4000 psi.
  • Leak testing adapter (53042) including 1/4 inch SAE hose connector plus ball valve for inline pressure monitoring; R134a high-side economy coupler (1/4 inch FL-M x 16 mm) (66434-R) for engaging service ports.
• Includes:
  • Nitrogen Pressure Regulator (53001) - single-stage, CGA580 standard fittings
  • 38 inch yellow charging hose (47382)
  • Leak Testing Adapter (53042)
  • R134a High-Side Economy Coupler 1/4-inch FL-M x 16 mm (66434-R)
  • Blow Molded Case (53000-PB)
• Specifications:
  • Manufacturer: Mastercool
  • Part Number: 53010-AUT
  • Material: Regulator body of brass and/or alloy steel with protective gauge guards; hose nylon barrier type; metal coupler components.
  • Gauge Sizes: 63 mm diameter, high-side up to 4400 psig (300 bar), low-side up to 1000 psig (70 bar)
  • Hose Length and Type: 38-inch yellow barrier charging hose 1/4-inch x 1/4-inch, rated 800 psi working pressure, burst at 4000 psi
  • Drive / Connection Types: 1/4 inch SAE flare outlet, CGA580 inlet, R134a high-side coupler 1/4 inch FL-M x 16 mm
  • System Compatibility: For automotive air-conditioning systems and HVAC/R; used for leak testing empty systems (without refrigerant), charging systems via R134a service ports, and for use with nitrogen cylinders.
• The Mastercool 53010-AUT can also be referred to as Mastercool automotive nitrogen pressure test regulator kit, Mastercool leak test A/C nitrogen regulator set, 53010-AUT nitrogen auto pressure testing set, Mastercool R134a coupler pressure tester, and Mastercool blow-molded case pressure testing regulator kit

Mastercool is a family-owned manufacturer of professional HVAC/R and automotive A/C service tools and equipment, including manifolds, gauges, vacuum pumps, recovery units, leak detectors, and fittings.

Q: What pressure should I use when testing a typical automotive A/C system with this kit?
A: Most automotive A/C systems are tested to around 100-200 psig when empty for leak checking; always check manufacturer’s spec. The regulator can produce up to 4400 psig but should be set for the safe working pressure of the particular A/C system.

Q: Can the 53010-AUT be used with refrigerant in the system or only empty ones?
A: It is intended for testing systems when no refrigerant is present; charging and testing while refrigerant is present should follow safety and refrigerant handling protocols.

Q: Does the kit include safety relief or protection for overpressure?
A: Yes, the regulator includes a safety relief valve rated at 725 psig (50 bar) to protect against overpressure.