Extension Spring Hardware Kit for 8' Doors up to 300 Lbs.

$81.51 per kit

Product Description

Garage Door Extension Spring Hardware Kit. For 8' doors weighing up to 300 pounds. Does not include springs.
Kit includes door cables, safety cables, 4 - 4" pulleys, 2 - pulley forks, 2 cable adjustment clips, 2 - open eye bolts with 4 - 5/16" lock nuts, 2 - s-hooks, 4 - 3/8" X 1 1/2" hex bolts and 4 - 3/8" hex flange nuts.
IMPORTANT: Due to supply chain shortages we currently do not offer quantity discounts, and for some of our products we are limiting the quantities that may be purchased.

Quantity Discounts

2+: $81.51 per kit
4+: $81.51 per kit
8+: $81.51 per kit



Since 1997 the Gold Standard for Online Garage Door Parts


Huge inventory of torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Larger 3 3/4" and 6" inside diameter commercial and industrial springs may require a day or two to ship. You'll also find TorqueMaster Springs, Extension Springs, Self-Storage door springs, steel rolling door springs and springs for one piece single panel doors.

Shelves packed with every part you need to fix your doors.

Please note. Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.