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HAULK DEPOT®

Ramp Door Spring Assist Kit – For 6' Trailer Ramp
SKU: 6-RDSA-KIT
$85.00 USD $85.00 USD
Shipping calculated at checkout.
In stock
Description

Ramp Door Spring Assist Kit – For 6' Trailer Ramp is a complete repair or replacement solution for most 6-foot-wide trailer ramp doors. Each pack is pre-assembled with essential components and comes in a compact, patent-pending carton for convenient storage and shipping. BAR NOT INCLUDED.

Kit Contents:
  • 1x 5.0 x 50 x 550mm (22″) 60 lb Torsion Spring – Right (Clockwise) Wind
  • 1x Set of 12" Cable Drums (Left & Right)
  • 1x Set of 150″ x 1/8″ Stainless Steel Winding Cables
  • 1x Set of Bearing Brackets (Roof Mount)
  • 1x Set of Nylon Rollers
  • 1x Pack of Assembly Hardware
Detailed Information:
Compatibility Most 6' Wide Trailer Ramp Doors
Lift Capacity Up to 120 lbs (total ramp) or 60 lbs (per door leaf)
Spring Type Torsion Spring – 22" – 60 lb – Right Wind
Bar Requirement Not Included – Must be supplied separately
Packaging Patent-Pending Carton – Compact & Shippable
Fitting & Usage:

This kit is designed to lift trailer doors up to 120 lbs total weight or 60 lbs per hinged door section. Always match the assist system to your trailer door's actual weight — not just width — for safe and proper operation.

Product Overview:

Whether you're assembling a new ramp door system or repairing an old one, the TSAP660 Spring Assist Kit offers an easy-to-install solution with all essential hardware included (except the bar). Trusted by trailer manufacturers and service shops.

We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Ramp Door Spring Assist Kit – For 6' Trailer Ramp

Customer Reviews

Based on 12 reviews
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G
Greggory Parsonson
Cables Seem a Bit Short

The cables were just long enough for my 6-foot door. I would have preferred a few extra inches for more slack during installation. Otherwise, the kit is a solid choice and my ramp operates smoothly now.

G
Gorden Woolgar
Solid Kit, Good Instructions

The instructions were a huge help. I’m not a mechanic but I was able to install this without any issues. My ramp door is now easy to lift. Worth every penny.

A
Alexandros MacClure
Perfect Fit, Heavy-Duty Parts

I was worried about the fit, but it was flawless. The brackets were a perfect match. The spring and cables are very robust. No more struggling with the ramp.

V
Vladimir Volkov
Works, but the Rollers are Flimsy

The main components (spring, cables) are fine. The nylon rollers feel a little light. They're working for now, but I'll probably upgrade them later. The main spring assist function is good.

S
Sergio Ramirez
Good Value, A Little Tricky to Install

The kit is a great price, but the winding process for the spring was a bit challenging. The instructions could be more detailed. Once it was on, though, it worked like a charm.

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