SSC 360 lb Extension Spring – 25/42 – 7' Door – Brown – Clips Included

🇺🇸 Made in USA

The SSC 360 lb extension spring is designed for compatible 7-foot-high sectional garage doors using a 25/42 extension spring system. Brown color coding identifies the weight class, and included clips provide attachment points for compatible extension spring hardware.

Manufactured from oil-tempered wire with a black coating, this spring is rated for a minimum of 10,000 cycles. One cycle equals one complete opening and closing of the door.

SPECIFICATIONS

APPLICATION & COMPATIBILITY

For compatible sectional garage doors with extension springs mounted alongside the horizontal tracks. Confirm the door’s actual weight, spring dimensions, attachment style, and cable-and-pulley arrangement before selecting a replacement.

In a standard two-spring residential setup, a matched pair of 360 lb extension springs is selected for a 360 lb door—not a 720 lb door. One spring should not be used alone to support the entire door. Systems with additional springs or different pulley arrangements require separate sizing verification.

The 25/42 designation means a nominal 25-inch relaxed spring length with 42 inches of additional stretch. It does not mean the fully extended spring measures 42 inches.

Brown color coding is used for multiple weight classes, so color alone cannot confirm a match. Verify the 360 lb rating and all dimensions before ordering. This spring is not a direct replacement for torsion springs or 27/48 extension springs used on 8-foot-high doors.

REPLACEMENT NOTES

Replacing both extension springs together helps maintain balanced lifting force and avoids pairing a new spring with a worn spring. Have the pulleys, lift cables, safety cables, clips, and mounting hardware inspected for wear and suitability for the door’s weight.

SAFETY WARNING

Garage door springs and related hardware are under high tension. Improper installation, adjustment, or removal can cause serious injury or death. Installation and service should be performed by a trained garage door technician.

Properly installed containment safety cables must run through both extension springs. Included clips do not replace safety cables. Never operate a door with a broken spring, frayed cable, damaged hardware, or uncontrolled movement.