SSC 8' Garage Door Extension Spring – 290 lb – 27-48 Series – Light Blue – Clips Included

🇺🇸 Made in USA

This SSC garage door extension spring is designed for compatible sectional garage doors approximately 8 feet highrequiring a 290 lb spring rating.

Manufactured by Service Spring Corporation (SSC), this heavy-duty spring belongs to the 27-48 Series and is supplied with clips for compatible extension-spring installations.

The spring uses the Light Blue identification color corresponding to the 290 lb pull rating and is rated for an industry-standard minimum lifecycle of 10,000 operating cycles.

Specifications

27-48 Series for 8' High Doors

This spring is part of SSC's 27-48 Series, intended for compatible 8-foot-high sectional garage doors.

The 27-48 designation identifies the spring series and should not be treated simply as a physical measurement.

Correct spring selection should be based on the complete specification, including:

• Door height

• Spring series

• Required pull rating

• Attachment configuration

• Existing spring setup

• Actual door counterbalance requirements

290 lb Pull Rating

This spring provides a 290 lb pull rating and is intended for heavier garage door applications requiring this specific counterbalance capacity.

Using an incorrectly rated extension spring can cause:

• Heavy manual door operation

• A door that rises unexpectedly

• Poor door balance

• Uneven cable tension

• Excessive opener strain

• Premature pulley and hardware wear

Always verify the required spring rating before installation.

Light Blue Color Code

The Light Blue identification color corresponds to the 290 lb extension-spring rating.

Extension-spring colors repeat at different weight ranges, so color alone should never be used to select a replacement spring.

Before ordering, confirm:

• 8' door application

• 27-48 Series

• 290 lb pull rating

• Light Blue identification

• Clips required

Clips Included

This version is supplied with clips for compatible extension-spring installation.

Compare your existing spring and attachment hardware before ordering to make sure the replacement configuration matches the original system.

Heavy-Duty Extension Spring Application

A 290 lb extension spring is intended for substantially heavier applications than common light-duty residential extension springs.

Correct spring selection depends on the actual garage door weight and counterbalance requirements.

Do not substitute this spring for a lighter-rated spring simply because the springs appear similar.

How Extension Springs Work

Extension springs are typically installed alongside the horizontal tracks on both sides of a sectional garage door.

As the door closes, the springs stretch and store mechanical energy. As the door opens, that stored energy helps lift and counterbalance the door.

A correctly matched extension-spring system helps provide:

• Smooth door travel

• Proper counterbalance

• Reduced opener strain

• Correct cable tension

• Easier manual operation

Compatibility & Fitment

Extension springs are not universal.

This spring should be selected when your system specifically requires:

• 8' high garage door

• 27-48 Series

• 290 lb pull rating

• Light Blue color code

• Clip-equipped configuration

Also inspect the existing:

• Lift cables

• Pulleys

• Safety containment cables

• Spring attachment points

• Track hardware

• Rear track supports

• Fasteners

Replace worn or damaged components before returning the door to service.

Replace Extension Springs in Pairs

If the garage door uses two extension springs, replacing both springs as a matching pair is generally recommended.

Both springs normally experience approximately the same number of operating cycles. If one spring fails or weakens, the opposite spring may already be fatigued.

Using one new spring with one worn spring can result in:

• Uneven lifting force

• Unequal cable tension

• Crooked door movement

• Poor door balance

• Increased hardware wear

Safety Cables Strongly Recommended

Extension-spring systems should use properly installed safety containment cables running through each spring.

If an extension spring breaks, the safety cable helps contain the spring and reduces the risk of it becoming a dangerous projectile.

Inspect existing safety cables whenever replacing extension springs.

Ready to Order?

If your existing system requires an 8' door, SSC 27-48 Series extension spring, 290 lb rating, Light Blue identification, and clips, this spring is ready for your repair.

Add it to your cart today and restore proper garage door counterbalance with the correct SSC-made extension spring.

Before ordering, double-check:

• 8' door height

• 27-48 Series

• 290 lb pull rating

• Light Blue color code

• Clips required

Safety Warning

⚠️ Garage door extension springs operate under substantial tension and can cause severe injury, death, or property damage if improperly handled.

Never remove an extension spring, pulley, lift cable, clip, or attachment point while the spring is stretched.

Secure the garage door and fully release spring tension before servicing the extension-spring system.

Installation should be performed by a qualified person familiar with garage door extension springs, containment cables, and proper installation procedures.

SEO Title: SSC 290 lb 8' Extension Spring – 27-48 Series – Light Blue

Meta Description: SSC 290 lb extension spring for 8' garage doors. 27-48 Series, Light Blue color code, clips included, minimum 10,000 cycles, Made in USA.