• For Chamberlain® full chain drive models in 8-ft. garage door applications.
• Quick-installation of extension rails and replacement chain.

• For Chamberlain® belt drive models in 8-ft. garage door applications.
• Quick-installation of extension rails and replacement belt.

P928 28 in. Plug-End Extension Spring is a Holmes spring replacement for heavier 1-piece / tilt-up / canopy-style garage doors. Two P928 springs – one on each side of the door – can handle up to a 75 lbs. door, with an initial tension of 45 lbs. to 55 lbs. A c-hook (sold separately) is required to connect spring to jamb hardware.

P528 28 in. Plug-End Extension Spring is a Holmes spring replacement for heavier 1-piece / tilt-up / canopy-style garage doors. Two P528 springs – one on each side of the door – can handle a 105 lbs. to 175 lbs. door, with an initial tension of 135 lbs. to 145 lbs. Four P528 springs – two on each of the door – can handle a 200 lbs. – 350 lbs. door. Either 4 c-hook’s or 4 w-hook’s (sold separately) are required to connect the springs to the jamb hardware.

Elevate the performance of your garage door system with our essential Garage Door Extension Springs. These springs play a vital role in ensuring the smooth and secure operation of your garage door. Functioning as a counterweight, they alleviate pressure on the torsion cable, contributing to a safer and more efficient door system. Equipped with S hooks at both ends, they easily attach to the pulley and safety cable assembly on the garage door and the stationary bracket on the ceiling, ensuring reliable functionality.

KEY FEATURES:

• PRECISE DOOR WEIGHT SPECIFICATIONS: Engineered for garage doors with an approximate weight of 210 lbs. (95 kg), guaranteeing optimal performance tailored to your specific setup.
• 5-YEAR WARRANTY:  All of our springs are covered by our 5 year warranty program, offering you peace of mind knowing that you will have long lasting springs.

Upgrade your garage door system with our premium Garage Door Extension Springs in elegant GOLD. These extension springs play a crucial role in ensuring smooth and secure door operation, facilitating the effortless opening and closing of your garage door. Serving as a counterweight, they effectively alleviate pressure on the torsion cable, resulting in reduced wear and tear on your system.

KEY FEATURES:

• SUITABLE FOR SPECIFIC DOOR SIZE: Engineered for garage doors measuring 16 ft. x 7 ft., these extension springs are optimized to support doors with an approximate weight of 180 lbs.
• ROBUST MATERIAL: Crafted from high-carbon coated steel, these extension springs are ASTM 229 Class II Oil-Tempered for superior durability. This ensures a long-lasting solution for your garage door system.
• DOUBLE LOOPED ENDS FOR STRENGTH: Equipped with two loops at each end, these extension springs are designed to connect seamlessly with the pulley system. This design feature extends the cycle life of the springs, providing enduring performance.

The extension springs are an important part of your garage door system that help in easing and securing the opening and closing of the door. By acting as a counterweight, they reduce the pressure on the torsion cable. These springs are equipped with S hooks at both ends, which can be attached to the pulley and safety cable assembly on the garage door and the stationary bracket on the ceiling. This design ensures smooth and safe functioning of the garage door system.

Key Features:

• Count on Strength and Durability: Crafted with precision and using high carbon ASTM 229 Class II Oil-Tempered Wire, our Garage Door Extension Springs are engineered for strength and durability. The double looped ends provide added strength and extend the cycle life of the springs, ensuring they can withstand daily use for an extended period.

• Seamless Installation: Whether you’re installing new springs or replacing old, rusty ones, our Garage Door Extension Springs feature a user-friendly design that facilitates quick and simple installation. However, for optimal safety and efficiency, we recommend professional installation.

• Corrosion-Resistant Coating: We understand the impact of environmental factors on garage door components. That’s why our extension springs come with a corrosion-resistant coating on the steel coils, effectively slowing down the rusting process and ensuring long-lasting performance.

Elevate the performance of your garage door system with our essential Garage Door Extension Springs in vibrant BLUE. These crucial components play a vital role in ensuring the smooth and secure operation of your garage door. Functioning as a counterweight, they alleviate pressure on the torsion cable, contributing to a safer and more efficient door system. Equipped with S hooks at both ends, they easily attach to the pulley and safety cable assembly on the garage door and the stationary bracket on the ceiling, ensuring reliable functionality.

KEY FEATURES:

• PRECISE DOOR WEIGHT SPECIFICATIONS: Engineered for garage doors with an approximate weight of 140 lbs., providing optimal performance tailored to your specific setup.
• VERSATILE DOOR SIZE COMPATIBILITY: Designed to fit a range of standard garage door sizes, including 8 ft. x 7 ft., 9 ft. x 7 ft., and 16 ft. x 7 ft., providing a versatile solution for various residential configurations.
• DOUBLE LOOPED ENDS FOR STRENGTH: Featuring two loops at each end, these extension springs are built for enhanced durability, extending their cycle life and ensuring a longer-lasting solution.