Description
When you’re dealing with Komatsu equipment or any hydraulic system that uses JIS (Japanese Industrial Standard) connections, getting the right fitting makes all the difference between a leak-free job and one that keeps you coming back with wrenches. This 60-degree concave female fitting gives you that secure JIS connection your system needs, designed specifically for 3/4-inch hydraulic hose applications.
What You’re Getting
- Crimp-on design creates a permanent, reliable connection that won’t back out under pressure
- 60-degree concave sealing surface matches JIS male fittings for proper metal-to-metal seal
- Female threads accept male JIS fittings commonly found on Komatsu and other equipment
- Ryco quality construction built to handle the vibration and pressure spikes of heavy equipment
- Sized for 3/4-inch hydraulic hose for medium to high-flow applications
Built for Heavy Equipment Work
This fitting is designed for construction equipment, excavators, dozers, and industrial machinery that uses JIS hydraulic standards. Komatsu equipment commonly uses these connections, along with other Japanese and some European machines. Whether you’re running a mini-ex, wheel loader, or hydraulic attachment, this fitting handles the high-pressure hydraulic circuits that power your equipment.
Made to Last
Ryco builds these fittings to withstand the harsh conditions of construction and agricultural work. The materials resist corrosion, handle temperature extremes, and maintain their seal even with the constant vibration that comes with heavy equipment operation. The concave sealing surface is precision-machined to ensure proper contact with mating fittings.
Installation Notes
This is a crimp-on fitting that requires proper crimping equipment and the right die set for your hose size. Make sure your hose end is cut square and clean before crimping—a good, straight cut is essential for proper seal and fitting performance. Follow the crimping specifications for your specific hose type to ensure a reliable connection that won’t fail under pressure.


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