Hydraulic Fitting, Gates Coupling, 12G-12FJX

The Gates 12G-12FJX MegaCrimp Hydraulic Hose Fitting is a heavy-duty, straight coupling designed for secure, leak-free performance in hydraulic systems. Built for 3/4" hose (dash size -12), this fitting features a female JIC 37° flare swivel connection for reliable sealing and easy installation.

Part of the proven Gates MegaCrimp® series, this fitting utilizes a patented “C” insert design that distributes crimping force evenly, creating a consistent, leak-resistant seal across a wide range of hose types.

The straight configuration is ideal for standard hose routing, while the TuffCoat™ plated steel construction provides enhanced corrosion resistance and long service life in demanding environments.

Designed for compatibility with Gates wire-braid hydraulic hoses, the 12G-12FJX is a reliable choice for construction, industrial, and mobile equipment applications.

Key Features

• 3/4" hose ID (dash size -12) hydraulic fitting
• Female JIC 37° flare swivel (#12, 1-1/16-12 thread)
• Straight fitting configuration
• MegaCrimp® “bite-the-wire” technology for strong retention
• Patented “C” insert for consistent, leak-free crimping
• TuffCoat™ plating for corrosion resistance
• Compatible with Gates wire-braid hoses

Specifications

• Hose Size: 3/4" (Dash -12)
• Thread Size: 1-1/16"-12 (JIC 37° flare)
• Configuration: Straight
• Material: Steel
• Length: ~3.74"
• Gates Part Number: 12G-12FJX
• Alt Part Number: G25170-1212

Applications

• Hydraulic hose assemblies
• Construction and heavy equipment
• Agricultural and industrial machinery
• Water truck hydraulic systems