Basysion Heavy-Duty Trailer Ramp Torsion Spring Set — 2000 lb Torque, 1.5" Shaft, Left/Right Pair

Basysion Heavy-Duty Trailer Ramp Spring Set is a direct replacement torsion spring pair engineered to deliver 2000 lbs of torque and smooth 90° ramp assist for heavy trailer doors and ramps.

When a trailer ramp spring fails, lifting and securing heavy ramps becomes difficult and unsafe. This Basysion kit includes a left and right torsion spring matched to the RS16933LH/RS16933RH specifications and built for 1.5" shafts. Crafted through high-temperature forging and precision winding, the springs are formulated to resist deformation and maintain performance across heavy-use cycles.

How does this spring set restore ramp performance?

The pair restores balanced torsional force so ramps lift and lower smoothly instead of sagging or snapping. Each spring supplies up to 2000 lb of torque with a 90° deflection range to match common trailer ramp geometries. Installation returns the ramp’s original counterbalance, reducing operator effort and wear on other hardware.

• Matched left/right pair for even torque distribution
• 2000 lb torque rating with 90° deflection for consistent assist
• Designed for 1.5" diameter shaft fit — no shims required

What materials and construction ensure long life?

Basysion springs are formed using multi-stage high-temperature forging that strengthens the steel and refines coil geometry. The 7-coil design and 1/2" round steel ears reduce fatigue and resist permanent set under repeated loads. This construction improves durability in heavy-duty towing and loading environments.

• High-temp forged steel for improved grain structure and resilience
• Seven tightly wound coils to distribute stress evenly
• 4" long ears and 1/2" steel bars for secure hook points

Which parts does this replace and how precise is the fit?

This kit is a direct replacement for OEM part numbers RS16933LH and RS16933RH and is sized for 1.5" shafts. Because the dimensions match common heavy-duty ramp shafts, it installs without modification on compatible trailers. Buyers should confirm shaft diameter and ear orientation before ordering.

• Direct swap for RS16933LH/RS16933RH — left and right included
• Engineered for 1.5" diameter ramp shafts to ensure alignment
• Plug-and-play fit reduces installation time and need for adapters

How does this kit help keep ramps safe during use?

Replacing worn or deformed springs restores controlled ramp motion and prevents sudden drops or uneven lifting. The robust ear design and heavy-gauge steel reduce the chance of failure under load, protecting cargo and operators. Timely replacement is a key maintenance item to avoid hazardous ramp behavior.

• Restores reliable counterbalance to prevent uncontrolled descent
• Heavy-duty ear and coil construction minimize breakage risk
• Recommended as a preventive maintenance replacement when wear is visible

Who is this for: This Basysion Heavy-Duty Trailer Ramp Spring Set is intended for trailer owners, fleet managers, and service technicians who need a reliable, OEM-compatible torsion spring replacement for heavy ramps and doors. It's ideal for users running frequent heavy loads who require predictable lift assistance, longer-lasting hardware, and an easy direct-replacement solution for RS16933LH/RS16933RH-equipped trailers.