Extension Spring Tandem Hookup Kit for one door

$21.70 per set

Product Description

Garage Door Extension Spring Tandem Hookup Kit for one door. For use with extension springs with an outside diameter of up to 2-3/8"
Kit includes 4 plates, 4 bolts and 4 nuts.
Tandem kits are designed to work with four spring systems. The kit is mounted to the ends of the springs that are closer to the door. On each side above the tracks the kit joins the ends of two springs to the pulley with the pulley fork. This allows the pulley to move forward and backward as the door closes and opens. Since the other ends of the springs are stationary and don't move, these ends are secured to the rear hangs with S-hooks or eye bolts.
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

4+: $21.70 per set
8+: $21.70 per set
12+: $21.70 per set



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.