Garage Door Extension Spring - 8' High Door ( 27-48)

SSC 150 lb Extension Spring – 27/48 – 8' Door – Red

$31.38
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Garage Door Extension Spring - 8' High Door ( 27-48)

SSC 150 lb Extension Spring – 27/48 – 8' Door – Red

8115
$31.38
Shipping calculated at checkout.

🇺🇸 Made in USA

The SSC 150 lb extension spring is designed for compatible 8-foot-high sectional garage doors using a 27/48 extension spring system. Red color coding identifies the weight class, while double-loop ends connect to compatible extension spring hardware.

Manufactured by Service Spring Corp., this spring is rated for a minimum of 10,000 cycles. One cycle equals one complete opening and closing of the door.

SPECIFICATIONS

Specification Details
Manufacturer SSC — Service Spring Corp.
Spring type Extension spring
Series 27/48
Door height 8 feet
Nominal relaxed spring length 27 inches
Rated stretch 48 inches beyond relaxed length
Weight class 150 lb
Color code Red
End configuration Double loop
Cycle rating Minimum 10,000 cycles
Country of manufacture USA

APPLICATION & COMPATIBILITY

For compatible sectional garage doors equipped with extension springs, lift cables, and pulleys. Match the replacement to the door’s actual weight, spring dimensions, end configuration, and pulley arrangement.

In a standard two-spring residential system, a matched pair of 150 lb extension springs is selected for a 150 lb door—not a 300 lb door. One spring should not be used alone to support the entire door.

The 27/48 designation identifies a nominal 27-inch relaxed spring length with 48 inches of stretch. It does not mean the fully stretched spring measures 48 inches.

This spring is not a direct replacement for a 25/42 spring used on a 7-foot-high door or for a torsion spring. Do not select a replacement by color alone.

REPLACEMENT NOTES

Replacing both extension springs together helps maintain balanced lifting force and avoids pairing a new spring with a fatigued spring. Have the pulleys, lift cables, safety cables, and mounting hardware inspected during replacement.

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. Never operate a door with a broken spring, frayed cable, damaged hardware, or uncontrolled movement.

Details

Need Help With Compatibility?

Not sure if this is the correct part for your garage door, operator, gate system, or application? Contact Us before ordering — we’re happy to help.

Garage-DoorParts.com carries a large selection of residential and commercial parts, and many components can look similar while having important differences in dimensions, model numbers, voltage, mounting, or compatibility.

For the best assistance, please provide as much information as possible, including the manufacturer, model number, part number, door or operator type, dimensions, and clear photos of the existing part or equipment.

Our goal is to help you identify the correct product before you order and reduce the possibility of ordering an incompatible part.

Contact Us with your product questions and compatibility information, and we’ll do our best to point you in the right direction.

Shipping & Returns

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.