CXPRO Radiator Pressure Tester & Vacuum Coolant Refill Kit — 28‑Piece Set with Gauge & Adapters

CXPRO 28pcs Radiator Pressure Tester Kit is an all-in-one cooling-system diagnostic and coolant refill set for pressure testing, leak finding, temperature checking and vacuum refilling.

This kit bundles a hand-pressure radiator tester, a vacuum coolant refiller, a thermometer, a long rubber hose and a wide selection of adapters in a single compact case so you can diagnose and service vehicle cooling systems without running between multiple specialty tools. Built with aluminum, brass and reinforced rubber components, the set covers most passenger cars and light trucks through a color-coded adapter system and a universal tapered adapter for odd fittings.

How do I use the pressure tester to find leaks?

Attach the pressure pump to the radiator or expansion tank using the adapter that best fits the neck, then pressurize the system slowly up to the recommended pressure listed for the vehicle. Watch the gauge for pressure loss while visually inspecting hoses, the radiator core, heater hoses and clamps—loss of pressure indicates a leak path. The kit’s durable gauge and pump let you hold steady test pressures for reliable diagnosis.

• Choose the color-coded adapter that fits the radiator or expansion tank neck.
• Hand-pump to the vehicle’s specified pressure (0–35 psi / 0–2.5 bar range).
• Observe the gauge for steady pressure drop to locate leaks.
• Inspect hose connections, core, and heater hoses while system is pressurized.

What is the vacuum coolant refiller used for and how does it help?

The vacuum refiller evacuates air from the cooling system and pulls in coolant under negative pressure, which reduces trapped air pockets and helps ensure proper coolant flow. This method simplifies refilling after repairs and minimizes bleeding time compared with gravity refills. The refiller’s brass fittings and reinforced seal reduce the chance of contamination during the refill process.

• Connect vacuum refiller to the expansion tank or radiator neck using the matching adapter.
• Create vacuum (−30 to 0 inHg) to draw coolant into the system automatically.
• Reduce trapped air for more consistent engine cooling performance.
• Works with a wide range of adapters for different vehicle brands.

Which vehicles and parts are compatible with this 28-piece set?

The adapter array includes common radiator cap styles and a universal tapered rubber adapter so the kit fits most European, Asian and American passenger vehicles and light trucks. Major brands listed as compatible include Mercedes-Benz, BMW, Audi, VW, Ford, GM, Toyota, Honda, Nissan, Mazda and Subaru. If an adapter doesn’t seat perfectly, the universal option and multiple tapered fittings increase the chance of a proper seal.

• Includes three radiator cap test adapters for typical cap designs.
• Seventeen additional adapters plus a universal tapered adapter for odd fittings.
• Color-coded caps speed adapter selection to avoid mistakes.
• Suitable for most common passenger cars and light trucks.

What materials and ease-of-use features should I expect?

Key components use robust materials—an aluminum pump body, brass fittings on the vacuum refiller, and an anti-corrosive rubber hose—to stand up to workshop use. The pressure gauge is shock-resistant and simple to read, while the color-coded adapter caps and a clear instruction sheet shorten the learning curve for DIYers. Everything packs into a molded storage case for organized transport and storage.

• Aluminum cylinder for the hand pressure pump and brass vacuum fittings.
• Shock-proof, easy-to-read pressure gauge (0–35 psi / 0–2.5 bar).
• Color-coded adapters and a 19" reinforced rubber nylon hose.
• Compact storage case keeps 28 pieces organized and protected.

Who is this for: The CXPRO 28pcs Radiator Pressure Tester & Coolant Vacuum Refill Kit is designed for DIY mechanics, independent garages and fleet technicians who need a single portable solution to pressure-test cooling systems, find leaks and perform clean vacuum-assisted coolant fills. It’s useful for routine maintenance, post-repair checks and pre-purchase inspections on most passenger vehicles and light trucks where accurate pressure checks and controlled refills reduce troubleshooting time.