QUFYSK Coolant Flush Gun – Lever-Action Heater Core Flush Kit for Automotive Radiators

Overview

The QUFYSK Coolant Flush Gun pairs a lever‑action design with a compact heater core flush kit, delivering a controlled, efficient way to clean coolant passages, radiators, and heater cores. By marrying water flow with compressed air, this setup creates a flushing action that can help loosen rust, debris, and contaminants that accumulate over time. The goal is to support smoother coolant flow and more reliable heating performance, without making guarantees about outcomes.

Designed for practical use on a wide range of vehicles, the kit emphasizes ease of setup and versatile compatibility. It’s meant to be a go-to tool for DIY enthusiasts and professional shops alike who want a straightforward approach to routine maintenance or more stubborn buildup.

Key benefits and how it helps

• Powerful flushing action by combining water pressure with compressed air for thorough cleaning of heater cores and radiators.
• Ergonomic lever trigger with a lock for continuous operation, reducing hand fatigue during longer flush sessions.
• Leak-resistant performance supported by included PTFE sealant tape for secure connections.
• Wide compatibility with common hose sizes and five universal vent adapters, covering many vehicle cooling systems.

What’s included

• 1 x QUFYSK coolant flush gun
• 3 x hose adapters
• 1 x air line fitting
• PTFE sealant tape
• 5 universal vent adapters: 0.7 in (19 mm), 1.1 in (29 mm), 1.3 in (32 mm), 1.4 in (36.5 mm), 1.6 in (40 mm)

Compatibility and setup

Fits multiple hose standards to accommodate most cooling systems. Hose options include 1/2-inch garden hose (16 mm ID, 20 mm OD), 5/8-inch garden hose (15 mm ID, 23 mm OD), 3/4-inch US thread water hose, and 1/4-inch shop air hose. The five vent adapters help you match common radiator fittings from 19 mm up to 40 mm.

Using the kit is straightforward: attach your garden hose and air line to the corresponding inlets, insert the flush gun nozzle into the coolant hose, and turn on the water. The included PTFE tape helps ensure a tight, leak‑free seal for reliable operation. For best results, perform the flush in a controlled environment and monitor the flow and pressure as you go.

Note: While this kit is designed to facilitate cleaning and improve flow, results can vary based on the system’s condition and age. It presents a practical method you can try as part of regular maintenance or a targeted cleaning task.