Mastercool 43306 Heavy Duty Cooling System Pressure Test, Refill Kit Shop Air
- The Mastercool 43306 is a heavy-duty cooling system pressure test and refill kit using shop air; includes heavy-vehicle adapters, pressure regulator, vacuum-refill attachments and tubing in a plastic case. Designed for Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC and Sterling systems.
- Features:
- Uses shop air to uphold continual pressure during both testing and refill, avoiding manual pumping or bladder plugs.
- Four quick-disconnect vacuum attachments for rapid refill of coolant systems and elimination of airlocks.
- Includes heavy-duty vehicle adapters to fit large coolant filler necks on major truck brands.
- Comes with a pressure test regulator plus vacuum refill adapter and refill hose, all in a plastic case for durability and transport.
- Includes:
- Pressure Regulator (43306-1)
- Adapter #2 White (43306-2)
- Adapter #12 Black (43306-3)
- Adapter #13 Red (43306-4)
- Adapter #15 Yellow (43306-5)
- Adapter #14 Green (43306-6)
- Spindle A (43306-7)
- Vacuum Refill Adapter (43306-8)
- Refill Hose (43306-9)
- Plastic Case (43306-10)
- Specifications:
- Manufacturer: Mastercool
- Part Number: 43306
- Number of Pieces: 10 distinct components (including regulator, adapters, hose, case)
- Includes: heavy-duty vehicle adapters, pressure regulator, vacuum refill attachments, refill hose, plastic storage case
- System Compatibility: Built for large and heavy-duty cooling systems in Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC, Sterling trucks; used for pressure testing cooling systems and refilling coolant under vacuum to eradicate airlocks.
- The Mastercool 43306 can also be referred to as Mastercool heavy duty cooling test refill kit 43306, Mastercool shop air pressure test and vacuum refill kit, heavy-duty truck cooling pressure regulator set, Mastercool 10-component large cooling system adapter hose 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: Which truck makes are compatible with the 43306 kit?
A: It’s designed for use on Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC, and Sterling cooling systems.
Q: What are the vacuum attachments used for?
A: The four quick-disconnect vacuum attachments allow you to purge air and refill coolant under vacuum, which helps eliminate airlocks and ensures the cooling system is filled properly.
Q: How is pressure applied and regulated in this kit?
A: Shop air is connected via the pressure regulator included; using the regulator and adapters the system is pressurized steadily; the valve and knob on regulator regulate and lock desired pressure.
