Gates G20400-1212 Caterpillar Style O-Ring Flange Hydraulic Coupling - 12GS-12FLC 3/4

The Gates G20400-1212 (12GS-12FLC) is a premium Caterpillar-style O-ring flange hydraulic coupling designed for demanding high-pressure and high-impulse spiral-wire hydraulic hose applications. This GlobalSpiral coupling features an innovative two-piece, no-skive design that reduces assembly time, labor, fabrication errors, and contamination of the fluid power system.

Key Features:

• 3/4" hose ID connection with 3/4" O-ring CAT flange
• Compatible with Gates MegaSys four- and six-spiral wire hoses up to 6,000 PSI
• "Bite-the-wire" crimp technology for improved coupling retention
• Tested to an industry-leading 1,000,000 impulse cycles for maximum durability
• +250°F temperature capability for extended assembly life
• Environmentally-friendly TuffCoat plating provides 347% better corrosion resistance than SAE standards
• Two-piece, no-skive design for faster, cleaner installation
• Can be used with 2-wire ferrules on Gates wire-braid hoses

Specifications:

• Overall Length: 5.71 inches
• Cutoff Length: 3.7 inches
• Flange Head Thickness: 0.56 inches
• Flange Diameter: 1.63 inches
• Hose ID: 3/4" (19.1mm)

This GlobalSpiral coupling is engineered to provide superior performance in extreme hydraulic applications, making it ideal for agricultural equipment, construction machinery, industrial systems, and mobile hydraulics where reliability and long service life are critical.