0.343 x 3-3/4" x 30'' Commercial Garage Door Torsion Spring Replacement, Min 20,000 Cycles Precision E-Coating 5-Year Warranty Heavy Duty (Left Side-Red Cone)

Commercial garage door torsion springs are used for most small to medium-sized commercial doors and larger residential applications. Upgrade your garage door system with our heavy-duty Torsion Spring Kit. Built from heat-treated professional-grade spring steel coils and featuring aluminum cones, these springs are engineered for superior durability and corrosion resistance, backed by a 5-year warranty. The ASTM 229 Class II Carbon Steel construction ensures exceptional strength and longevity, withstanding up to 20,000 cycles. Easy to install, this kit is perfect for DIY enthusiasts, though professional assistance is recommended for those less experienced. Remember to match your original spring specifications for optimal performance.

• Restocking Fees Apply: THIS IS A CUSTOM MADE ITEM, THESE SPRINGS ARE MADE TO ORDER ------ MAKE SURE YOU BUY THE RIGHT SIZE NEEDED ------- a 50% restocking fee applies even if RETURNED in original condition/packaging. Returns with damages may be subject to a 100% restocking fee, in accordance with Amazon's return policy.
• LEFT-SIDE COMPATIBILITY: When facing from inside the garage, the RED CONE torsion spring is for the LEFT SIDE of the garage door.
• PACKAGE INCLUDES: One Garage Door Torsion Spring 343 x 3-3/4 x 30 (Red Cone)
• TORSION SPRING DIMENSION: 0.343 wire size x 3-3/4” inside dimension x 30” length Garage Door Torsion Spring.
• HEAVY DUTY SPRINGS: Crafted from heat-treated spring steel with aluminum cones for durability. Electrophoretic coating ensures corrosion resistance and wear protection. Salt spray tested for 400+ hours, 20,000+ cycles. Long-lasting and no lubrication needed for clean install.
• DURABLE PREMIUM MATERIALS: Constructed from the highest-grade ASTM 229 Class II Carbon Steel, our torsion springs offer exceptional strength and longevity, establishing them as the epitome of reliability.
• EASY INSTALLATION: Use our high quality garage door torsion springs kit to fix and replace old broken garage door springs. Having the experience of installing torsion springs can save you money and time, but only install if you feel comfortable doing so, or leave for a professional if needed.
• 5-YEAR WARRANTY: Supported by a generous 5-YEAR WARRANTY from the purchase date, our Garage Door Springs reflect our commitment to the quality and performance of your investment. This extended warranty underscores our dedication to your lasting satisfaction.
• MADE IN AMERICA: Engineered for durability and reliability, this commercial garage door torsion spring is manufactured in the USA, adhering to high-quality standards, ensuring longevity and consistent performance for commercial garage doors in various industrial settings.
• NOTE: It’s essential to match the wire diameter, inner diameter, and length of the replacement spring with those of your original spring. Taking the extra time to verify these measurements will pay off. You cannot interchange wire sizes unless using the correct conversion method. For more help, please reach out to us directly.