14mm and 18mm Air Hold Extension Hose - KD Tools

The KD Tools 2992 Air Hold Extension Hose is an essential tool for professional technicians performing top-end engine service without cylinder head removal. This specialized hose is designed to introduce compressed air into an engine's cylinder, holding valves securely closed during operations such as valve seal replacement, valve spring removal, or retainer installation. Its universal stepped fittings ensure broad compatibility across various automotive and industrial engines.

Key Features

• Dual-Size Compatibility: Features stepped fittings for both 14mm and 18mm spark plug ports, offering broad application across different engine types.
• Secure Sealing: Equipped with O-ring seals on the stepped fittings to ensure a positive, leak-free connection, maintaining consistent air pressure within the cylinder.
• Extended Reach: A 14-inch long hose provides ample reach to access deep-set spark plug holes, simplifying work on challenging engine configurations.
• Standard Air Line Connection: Incorporates a 1/4" NPT fitting for quick and easy connection to standard shop air lines and compressors.
• Professional-Grade Construction: Built for durability and repeated use in demanding shop environments, ensuring reliable performance.

Applications

The KD Tools 2992 Air Hold Extension Hose is invaluable for professional mechanics and technicians working on engine valve trains. It is commonly used for:

• Replacing valve seals without disassembling cylinder heads.
• Removing and installing valve springs.
• Servicing valve retainers and keepers.
• General top-end engine maintenance where valves need to be held in a closed position using air pressure.

This tool is suitable for a wide range of gasoline and some diesel engines found in automotive, light truck, and industrial equipment applications.

Important Note

Always ensure the vehicle is placed in park or neutral and secured before applying air pressure. Keep hands clear of fan blades, belts, and pulleys, as slight crankshaft rotation may occur when air pressure is introduced.