Mastercool 43302 Cooling System Pressure Test Kit, 25 Piece, Cap & Adapter Set
- The Mastercool 43302 is a 25 piece cooling system pressure test kit designed to detect external and internal coolant system leaks; includes radiator cap connectors, steel and aluminum adapters, a hand pump, thermometer, gauge, and storage case.
- Features:
- Hand-held pump with gauge lets you pressurize cooling systems to identify leaking gaskets, cracked blocks, or hose leaks.
- Includes blue and black radiator cap test connectors (#2/#3 black and #2/#4 blue) to test the seal integrity of radiator caps.
- Twenty-one adapters (three steel #2, #3, #4 and eighteen aluminum #6 through #23) with color-coding for quick selection and better matching of radiator filler necks across domestic and import vehicles.
- Blow-molded case keeps components organized and protected during storage or transport.
- Includes:
- Needle Thermometer (43300-0)
- Hand Pump (43300-1) with Gauge (43300-G) and Hose with Coupler (43300-H)
- Steel Adapters: #2 (43300-2), #3 (43300-3), #4 (43300-4)
- Aluminum Adapters: #6 (brown), #7 (blue), #8 (cyan), #9 (pink/red), #10 (orange), #11 (lime), #12 (dark silver), #13 (light gold), #14 (purple), #15 (black), #16 (dark gold), #17 (royal blue), #18 (champagne), #19 (red), #20 (light silver), #21 (light green), #22 (pink), #23 (dark green)
- Radiator Cap Test Connector #2/#3 (Black) (43302-5A)
- Radiator Cap Test Connector #2/#4 (Blue) (43302-5B)
- Blow-Molded Case (43302-PB)
- Specifications:
- Manufacturer: Mastercool
- Part Number: 43302
- Number of Pieces: 25 distinct components
- Adapter Materials: Steel (Adapters #2, #3, #4), Aluminum (Adapters #6-#23)
- Accessories: Blue and black radiator cap connectors; needle thermometer; hose & coupler; pump gauge assembly
- Storage: Blow-molded case (43302-PB)
- System Compatibility: Fits most domestic and import cars and trucks; used for detecting coolant system leaks (external and internal), testing radiator caps, pressure-testing cooling systems, hose fitting tests.
- The Mastercool 43302 can also be referred to as Mastercool cooling system pressure test 43302, 25-piece radiator test adapter set, Mastercool coolant leak detection kit 43302, radiator cap test and adapter kit, and Mastercool universal cooling pressure tester set
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 maximum pressure should I apply when using the 43302 cooling test kit?
A: The user manual states do not exceed 20 psi when pressure testing to avoid damage to radiator or cooling system components.
Q: Can this kit test radiator caps as well as the entire cooling system?
A: Yes, the included radiator cap connectors allow you to attach your original radiator cap to the test connector and apply pressure using the pump and gauge to verify cap integrity.
Q: Are the adapters included interchangeable across many vehicle types?
A: Yes, the steel and aluminum adapters (#2-#23) cover a broad range of radiator filler neck sizes found in many domestic and import passenger vehicles, and color-coding helps speed matching.
