SuperSprings TSS-107-47 Trailer SumoSprings — Over-Axle Helper Springs (Set of 2)
Upgrade your trailer's ride quality and towing stability with SuperSprings TSS-107-47 Trailer SumoSprings. These maintenance-free, airless helper springs mount directly above your trailer's leaf spring assembly, creating a protective cushion between the axle and trailer frame — dramatically reducing bounce, sway, and hop while towing.
Key Features:
- ✔ Reduces road-induced G-forces on your trailer by up to 68%
- ✔ Mounts above the leaf spring assembly — no drilling or permanent modification
- ✔ Maintenance-free — no air lines, compressors, or upkeep required
- ✔ Handmade from patented micro-cellular polyurethane (no leaking or rupturing like traditional air bags)
- ✔ Minimizes wear and tear on trailer frames, windows, doors, cabinets, mounted TVs, and other interior components
- ✔ Improves driver control, ride comfort, and overall towing confidence
Specifications:
- Manufacturer: SuperSprings International
- Manufacturer Part Number: TSS-107-47
- Fitment: Trailer axles rated 5,000–8,500 lbs. GAWR
- Load Capacity: Up to 1,800 lbs. at 50% compression
- Quantity: Sold as a set/pair (2 pieces)
- Color: Black
- Warranty: SuperSprings limited lifetime warranty
- Fitment Note: Will not fit spring plates wider than 4.25"
What's Included:
Springs and mounting brackets for installation above your trailer's existing leaf spring assembly.
Ideal For:
RVs, travel trailers, and towable campers looking to reduce sway, improve stability, and protect interior components from excessive road vibration.