Hydraulic Fitting, 3/4"X3/4" Female Komatsu

The 12G-12FKX Hydraulic Fitting is a MegaCrimp® female Komatsu coupling designed to deliver a secure, leak-resistant crimp connection in demanding hydraulic systems. Built around MegaCrimp®’s patented internal “C” insert, it helps distribute crimping forces evenly to form a concentric seal while accommodating different hose constructions and wall thicknesses—helping simplify inventory across common one- and two-wire hose builds.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 12G-12FKX
• Product Type: Hydraulic hose fitting / MegaCrimp® coupling
• Fitting Style: Female Komatsu
• Hose ID: 3/4 in
• Fitting Nominal Size: 3/4 in
• Thread Size: M30 x 1.5
• Thread Pitch: 1.5
• Nut Hex Size: 36 mm
• Stem Hex Size: 30 mm
• Overall Length: 3.95 in
• Cutoff Length: 1.94 in
• Seal Design: Patented MegaCrimp® with internal “C” insert for even crimp force distribution and a concentric, leak-resistant seal
• Hose Compatibility: Designed to work across multiple hose constructions and wall thicknesses (including one- and two-wire hoses)

Ideal For

• Hydraulic hose assemblies needing a 3/4" female Komatsu style connection
• Komatsu and compatible equipment using M30 x 1.5 threaded fittings
• Applications where leak resistance and consistent crimp performance are critical
• Maintenance shops aiming to reduce fitting inventory across varying hose ODs
• Mobile, agricultural, and industrial hydraulic repairs using 3/4" ID hose