Hydraulic Fitting, 3/8"X3/8" Female Komatsu

The 6G-6FKX Hydraulic Fitting is a 3/8" x 3/8" female Komatsu-style MegaCrimp® coupling designed for reliable, leak-resistant hose assemblies—because hydraulic leaks have a special talent for showing up at the worst possible time. Built around the patented MegaCrimp® design, it uses the internal “C” insert to help accommodate different hose constructions and wall thicknesses while distributing crimp force evenly to form a concentric, dependable seal. The result: simplified inventory and confident performance on both one- and two-wire hoses.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 6G-6FKX
• Brand / Series: MegaCrimp® coupling
• Product Type: Hydraulic hose fitting / crimp coupling
• Connection Type: Female Komatsu
• Fitting Nominal Size: 3/8 in
• Hose ID 1: 3/8 in
• Thread Size 1: M18 x 1.5
• Thread Pitch: 1.5
• Nut Hex Size: 24 mm
• Stem Hex Size: 17 mm
• Cutoff Length: 1.42 in
• Overall Length: 2.52 in
• Seal Design: Patented MegaCrimp® “C” insert for even crimp-force distribution and concentric sealing
• Compatibility Benefit: One size supports multiple hose ODs across varying constructions and wall thicknesses
• Hose Types: Compatible with one- and two-wire hoses

Ideal For

• Building or repairing Komatsu-style hydraulic hose assemblies
• Applications where a leak-resistant crimp seal is critical
• Shops that want to reduce coupling SKUs thanks to broad hose OD accommodation
• Field and equipment maintenance where reliability matters more than optimism
• Anyone who prefers their hydraulics to move oil inside the hose, not onto the ground