EMIHO Trailer Ramp Torsion Spring Set — 2-Piece 1" Rod Replacement, Left & Right Balanced, Corrosion-Resistant

If your trailer ramp is heavy to raise or droops unevenly, this EMIHO spring pair is engineered to restore balance and function. Designed as a left-and-right replacement set, these coil torsion springs fit shafts with a 1" diameter and swap in for part numbers like 3034278/ST9437L and 3034279/ST9437R. Each spring is heat-treated and surface coated to resist wear and corrosion so you get longer service life under outdoor conditions.

How will these springs change ramp performance?

Replacing fatigued torsion springs brings back consistent lifting force and prevents the ramp from sagging or slamming shut. The matched left and right pieces distribute load evenly and reduce strain on hinge hardware for smoother operation over time.

• Restored counterbalance for safer, easier ramp lifting
• Even load distribution to reduce hinge wear
• Smoother motion during opening and closing cycles

Are these springs compatible with my trailer?

These springs are manufactured to fit trailers that use a 1" rod or shaft and are intended as direct replacements for the listed OEM numbers. Confirm your existing spring dimensions and part references before ordering to ensure a proper match.

• Fits shafts with a 1" diameter
• Replaces part numbers 3034278/ST9437L and 3034279/ST9437R
• Includes one left-side and one right-side spring for a full replacement

What are the materials and durability features?

EMIHO builds these coil springs from heavy-gauge steel with a protective surface finish to fend off rust and abrasion. That treatment helps maintain spring tension and extend functional life even when exposed to road grime and weather.

• Heavy-duty steel construction for load-bearing strength
• Surface coating improves corrosion and wear resistance
• Factory-tested units to ensure consistent performance

How difficult is installation and what’s included?

Installation is straightforward for anyone familiar with ramp hardware: the springs are meant to be swapped into the same positions as the worn originals. The set ships with one left and one right spring—no extra hardware—so you can quickly replace both sides and rebalance the ramp.

• Direct swap for matching OEM-style mounts
• Includes one left and one right torsion spring
• No additional parts included—verify mounting clips or pins before replacing

Who this is for: This EMIHO torsion spring set is aimed at trailer owners, fleet maintenance teams, and DIY mechanics who need an affordable, durable replacement for worn ramp springs. If your trailer uses a 1" shaft and the ramp no longer balances correctly, this left-and-right pair restores function and helps protect hinge components. Always confirm part compatibility before purchase and follow safe installation practices or consult a professional if unsure.