weyleity Radiator Pump Pressure Tester Kit 18PCS – 0–35 PSI Gauge, Thermometer & 10 Color-Coded Caps

The weyleity 18PCS Radiator Pump Pressure Tester Kit is a complete, reusable toolset that pressurizes and diagnoses vehicle cooling systems to find leaks and assist with safe refilling.

This all-in-one kit brings professional-style pressure testing to home garages and shops: a hand pump with a 0–35 psi gauge, a built-in thermometer, 13 adapters (including 10 color-coded radiator caps), reinforced hoses, and a sturdy case. It’s designed to check radiators, hoses, heater cores, and expansion tanks quickly, letting you pinpoint pressure loss without guessing. The kit also supports vacuum refilling to reduce air pockets after repairs.

How do I use this pump to check for radiator leaks?

Using the kit is straightforward and takes only minutes once you select the correct adapter. Remove the vehicle’s radiator cap, fit the matching adapter or color-coded cap from the set, then attach the hand pump and build pressure slowly while watching the gauge.

• Select the adapter color/number that matches your radiator neck.
• Pump until the gauge reads the recommended test pressure (commonly 10–15 psi).
• Observe the gauge for 5–10 minutes; a steady drop indicates a leak to locate and repair.
• Use the thermometer to monitor fluid temperature and avoid testing when too hot.

Which vehicles and parts is this compatible with?

The kit includes a broad range of adapters to fit most cars, trucks, SUVs and vans, covering common radiator neck sizes and styles. Color-coded aluminum caps and multiple brass/aluminum adapters make it easier to find the right fit while protecting threads and sealing surfaces.

• 10 color-coded radiator caps for popular domestic and import fittings.
• 3 aluminum adapters and 2 cap connectors for nonstandard openings.
• Reinforced hoses and valves for corrosion resistance under test pressures.
• Refer to the included compatibility chart before testing to avoid mismatches.

What safety features and durability does the kit offer?

The components are built to withstand repeated use and high-pressure testing without rapid wear. Aluminum alloy caps, nylon-reinforced parts, and a durable hand pump with a clear 0–35 psi gauge minimize leaks and ensure reliable readings during diagnostics.

• 0–35 psi gauge for precise pressure monitoring and leak detection.
• Thermometer to prevent testing on overheated systems.
• Upgraded filling valve and reinforced rubber hoses for secure sealing.
• Sturdy carrying case organizes parts and protects them from damage.

This weyleity cooling system kit also supports vacuum refilling to help remove air pockets after repairs, improving coolant circulation and reducing the need for repeated bleeding.

Who is this for: The weyleity 18PCS Radiator Pump Pressure Tester Kit is aimed at DIY mechanics, mobile technicians, and small shop owners who want a dependable, portable way to diagnose cooling-system leaks and perform safe refills. It’s useful for anyone who services older vehicles, performs pre-purchase inspections, or wants to confirm repair quality without specialty shop costs. Always follow vehicle-specific procedures and safety precautions when testing and repairing cooling systems.