SSC 110 lb Garage Door Extension Spring – 27-48 Series – White – 8′ Door – Double Loop

🇺🇸 Made in USA

This SSC garage door extension spring is designed for compatible 8-foot-high sectional garage doors requiring a 110 lb spring rating. Part of the 27-48 Series, it features white identification markings and double-loop ends for connection to compatible extension-spring hardware.

Manufactured by Service Spring Corporation from black-coated, oil-tempered spring wire, this spring is rated for a minimum of 10,000 operating cycles. When properly matched to the door, it helps provide balanced lifting and smooth operation while reducing unnecessary strain on the opener.

Specifications

Understanding the 27-48 Measurement

The 27-48 designation refers to approximately 27 inches of relaxed spring length plus 48 inches of stretch, resulting in approximately 75 inches when extended.

48 inches is the stretch amount—not the total extended length. Match the spring series, rating, and attachment style before ordering.

Common Uses

• Replacing worn or broken extension springs on compatible 8-foot-high sectional garage doors.

• Restoring counterbalance on systems requiring 110 lb-rated springs.

• Servicing extension-spring installations with double-loop attachment ends.

Compatibility and Spring Selection

This spring is intended for compatible extension-spring counterbalance systems, typically installed alongside the horizontal tracks. It does not replace a torsion spring mounted on a shaft above the door.

Verify the following before purchasing:

• 8-foot door height

• 27-48 spring series

• 110 lb required spring rating

• Double-loop ends

• Compatible pulleys, cables, and attachment hardware

Do not select a replacement by color alone. White identification markings repeat across different ratings. A white 210 lb spring is not interchangeable with this 110 lb version.

In a conventional two-spring residential system, a matched pair of 110 lb-rated springs is used for an approximately 110 lb door—not a 220 lb door. Have a garage door professional verify the actual door weight and counterbalance requirements before replacement.

Installation Notes

Replacing both extension springs together is recommended when they are the same age to help maintain even lifting and consistent performance.

Inspect the pulleys, lift cables, safety cables, and attachment points during replacement. Replace worn or damaged components before returning the door to service.

Safety cables must run through each extension spring to help contain it if it breaks. This version has double-loop ends; clips are not included.

Safety

Garage door springs operate under high tension and can cause serious injury. Professional installation is recommended. Never disconnect or adjust springs, cables, or attachment hardware while under tension.

Do not operate a door with a broken spring or use the garage door opener to compensate for an unbalanced door.

Order the Correct Replacement

Choose this SSC 110 lb white extension spring for an 8-foot door requiring the 27-48 Series and double-loop ends.Unsure of the match? Contact Garage-DoorParts.com before ordering for help confirming the correct spring.