---
product_id: 134768296
title: "Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement"
brand: "zhent"
price: "$164"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/134768296-pair-of-90-lbs-heavy-duty-garage-door-extension-springs
store_origin: NZ
region: New Zealand
---

# 18,000 cycles 90 lbs capacity Corrosion resistant Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement

**Brand:** zhent
**Price:** $164
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade Your Garage Game with Heavy-Duty Springs!

## Quick Answers

- **What is this?** Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement by zhent
- **How much does it cost?** $164 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/134768296-pair-of-90-lbs-heavy-duty-garage-door-extension-springs)

## Best For

- zhent enthusiasts

## Why This Product

- Trusted zhent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rust-Resistant Finish:** Electrophoresis black coating keeps your springs looking new.
- • **Heavy-Duty Performance:** Crafted from heat-treated spring steel for unmatched durability.
- • **Revitalize Your Garage:** Transform your old garage door into a reliable entryway.
- • **Long-Lasting Reliability:** Engineered for 18,000 cycles—open and close with confidence.
- • **Pair Up for Perfect Balance:** Replace both springs to ensure smooth operation and balance.

## Overview

This pair of 90 lbs heavy-duty garage door extension springs is designed for durability and longevity, featuring a corrosion-resistant black coating and rated for 18,000 cycles. Perfect for replacing old, worn-out springs, these high-quality springs ensure your garage door operates smoothly and efficiently.

## Description

Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement

## Features

- 90 POUND WEIGHT CAPACITY:spring for 90 pound garage door using extension spring system,use a scale to weigh the door if unsure of the weight of the door.
- RESURRET YOUR OLD GARAGEDOOR:these upgraded extension garage door springs are designed to replace these rusted,worn out,dangerous springs and refresh your old garage door.
- HEAVY DUTY:these springs are made of high quality heat treated spring steel,tested to be durable and long-lasting. Rated for 18,000 cycles (a cycle is 1 open and 1 close).
- REPLACE BOTH SPRINGS:Having a mix of a new and an old spring on the same door can be very hard to balance and will keep your door from operating correctly.So we we only sell in pairs,you can also save money by buying a pair at a time.
- ANTI-RUST:high quality material with coat for corrosion resistance ,these springs are easy to clean and not tend to rust no matter indoor or outdoor.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ZhenT |
| Part Number | ZT-054-1 |
| Item Weight | 4.29 pounds |
| Product Dimensions | 2.7 x 7 x 13.1 inches |
| Country of Origin | China |
| Item model number | ZT-054-1 |
| Size | 90lb |
| Color | Black |
| Finish | Coated |
| Item Package Quantity | 1 |
| Included Components | 1 Pair of Garage Door Extension Spring and 1 Installiation Instruction |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 3 year warranty |

## Images

![Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement - Image 1](https://m.media-amazon.com/images/I/61CT1sNz2-L.jpg)
![Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement - Image 2](https://m.media-amazon.com/images/I/71zRN6HAZiL.jpg)
![Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement - Image 3](https://m.media-amazon.com/images/I/71r1qOvylqL.jpg)
![Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement - Image 4](https://m.media-amazon.com/images/I/719uRRsA+CL.jpg)
![Pair of 90 lbs Heavy Duty Garage Door Extension Springs Stretch Spring,High Precision Electrophoresis Black Coated for Corrosion Resistance,MIN 18000 Cycles for 7ft Garage Door Springs Replacement - Image 5](https://m.media-amazon.com/images/I/81KVZoigMtL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: What is the length of these springs?**
A: The retracted length is 26 1/2 inches, tip to tip.  I would imagine that is the standard length of all such garage door springs, but not sure.  The important thing when ordering is to get the correct springs for your door weight.  My old springs were green on the end, so that told me that they were 120 lb. springs and that is what I ordered for replacements.

**Q: What is the outside diameter of the springs?**
A: The outside diameter is 1.73inch

**Q: How far is the extended length of the springs**
A: 68 inches fully extended, garage door down..

**Q: Other manufacturers have a 1.5 outer diameter for 140lbs 7ft doors, is this ok or is it supposed to be standardized ?**
A: shouldn't be a problem on a alum,door

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best review because I did it
*by A***  on June 1, 2025*

Looks good smaller than the ones on there but have the same rating

### ⭐⭐⭐⭐⭐ The garage door opener works str again
*by G***Y on May 16, 2025*

They work great, no more problems

### ⭐⭐⭐⭐ Not sure it will last
*by A***R on February 2, 2025*

Wire gauge is less than traditional springs, meaning the unit loading is greater. This requires a much better quality steel to have equivalent life (fatigue cycles) and I seriously doubt this is the case.The spring does not come painted to the strength code, which will make it a challenge for whoever replaces this in the future to get the right spring.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*