S60 S Type Excavator Coupler: 573-3166

S60 S Type Excavator Coupler: 573-3166

S60 - M312 Linkage Coupler


Cat® S Couplers help you get the job done faster while keeping the safety of your people and equipment top of mind. With the ability to easily switch attachments, S Couplers bring enhanced versatility and the kind of quality you expect from your Cat products. S Couplers are a versatile solution that help your operation run at peak efficiency.

Unmatched Durability

  • The most important coupler components are protected inside the cast base
  • The coupler is made of cast pieces that sustain force better over time
  • Wide contact surface to connect attachments prevents excessive wear
  • Low build height maintains consistent breakout force
  • Heavy-duty locking wedge keeps attachments secure

Enhanced Versatility

  • Switching attachments is quick and easy
  • Attachments can be shared between machines in the same size class
  • Lift hook allows for lifting objects with a chain or strap

Industry-Leading Safety

  • SecureLock™ features and technology lead the industry in safety
    • Pressure relief – limits system to 300 bar (4351 psi) to protect the cylinder or locking wedge from damage
    • Hydraulic lock – check valve prevents hydraulic backflow
    • Sensor – measures the position of the locking wedge and indicates coupling status to the operator
    • Mechanical Spring – keeps the locking wedge in locking position, even in the event of hydraulic pressure loss
  • Locking visual on coupler and machine monitor gives operator assurance the attachment is connected
  • Operators can switch attachments independently while staying safe in the cab

Boost Efficiency and Productivity with Integrated Technologies

  • Never waste time looking for your coupler again. Cat asset tracking is available on select couplers.
  • Track your entire fleet of attachments and machines from one source. Couplers with asset tracking can be viewed within VisionLink®alongside Product Link™subscribed equipment.
  • Keep your assets secure. Couplers with an asset tracker send an alert if they leave an easy-to-setup site boundary.

  • Specs
  • Docs



Long Name:
S60 S Type Excavator Coupler: 573-3166
S60 S Type Excavator Coupler: 573-3166
388 lb / 176 kg
Lifting Hook Capacity
5 ton (US) / 5 ton (US)
13.39 in / 340 mm
Overall Length
18.9 in / 480 mm
Machine Class
12-19 tons
Maximum Operating Pressure
5076 psi / 350 bar