48" X 66" for 11' Garage Door Extension Spring - Double-Looped Ends, Sold in Pairs

Ensure smooth, balanced, and reliable operation for your tall garage door system with this Pair of Garage Door Extension Springs (48" x 66"), specifically engineered for 11-foot high garage doors.

Crafted from high-strength, oil-tempered steel, these heavy-duty springs are designed to handle the added load of larger or heavier doors. Acting as a counterbalance, they reduce strain on your opener and torsion system — improving safety, efficiency, and extending the life of your door components.

⚠️ Note: Some spring sizes may require additional lead time. Please contact us to confirm availability before placing your order.

⚙️ Key Features:

• 🏠 Designed for 11' High Doors: Perfectly sized for tall doors, ensuring proper fit, tension, and performance.

• 📏 Dimensions: 48" long x 66" extended length, offering the right extension to counterbalance the door’s weight.

• ⚖️ Weight Range: Compatible with doors weighing 100 lbs to 280 lbs, providing balanced and efficient operation.

• 🔩 Durable Construction: Made from premium oil-tempered steel for maximum strength and longevity.

• ⚙️ Smooth Counterbalance: Helps reduce strain on the torsion system and ensures safer, smoother lifting.

• 🪝 Double Looped Ends: Securely connects from the stationary ceiling bracket to the pulley and safety cable assembly.

🧰 Installation Tips:

• 🔄 Always Replace in Pairs: For balanced performance and safety, replace both springs at the same time.

• 📘 Follow Installation Guidelines: Refer to your door manufacturer’s manual for proper setup and tensioning.

Reliable, Long-Lasting, and Built for Performance.
These 48" x 66" Garage Door Extension Springs are the trusted choice for maintaining your door’s strength, balance, and smooth operation — whether you’re replacing old springs or upgrading for better performance.

🧮 Sold in Pairs

🎨 DASMA Spring Color Codes (for easy identification):