YiaChuii Tender Spring Kit for Trucks and Trailers 2‑Pack 20in Galvanized with Hose Holder and 3‑Hole Clamp

A durable 20-inch tender spring kit that lifts and secures air and power lines on trucks and trailers, supplied as a 2-piece set with hose holder and 3-hole clamp.

This YiaChuii kit includes two 20" galvanized carbon-steel springs, widened hooks, a stainless steel 3-in-1 air line ring with EPDM cushioning, and a 1/2" three-hole nylon clamp — everything designed to keep lines elevated, protected, and neatly routed behind tractors and trailers. Built for heavy use and outdoor exposure, the components resist rust and impact while fitting standard crossbars and line diameters. It’s a straightforward replacement option for Phillips 17-145 and Tectran 9421-1 style assemblies.

How does this tender spring kit protect air and power lines?

The spring provides tension to lift lines away from road debris and trailer components while acting as a shock buffer to reduce strain at connection points. The widened hooks and rubber-padded stainless ring limit wear and chafing, extending line life without complex installation.

• 20" galvanized carbon-steel spring absorbs shocks and returns to shape.
• EPDM rubber padding on the 3-in-1 ring cushions hoses and prevents abrasion.
• Widened 2" hooks reduce slippage on large crossbars.
• Durable nylon clamp secures multiple lines in a tidy bundle.

What materials and corrosion protection are used?

Each component is chosen to stand up to outdoor conditions: the springs are galvanized to resist rust, the clamp is made from crush-resistant nylon, and the hose ring uses 304 stainless steel for long-term corrosion resistance. Painted hooks add an extra layer of protection where metal meets the elements.

• Galvanized carbon-steel spring for strength and rust resistance.
• 304 stainless steel hose holder resists corrosion and bending.
• Black nylon 3-hole clamp resists crushing and UV exposure.
• Painted widened hooks to prevent surface corrosion.

How easy is installation and what fits this kit?

Installation is simple: attach the spring to the crossbar using the widened hook, route lines through the stainless ring, and secure them with the 1/2" three-hole clamp. The clamp accepts multiple hoses and electrical lines, and the spring’s sizing accommodates most truck and trailer crossbar diameters.

• Hook fits large-diameter crossbars without modification.
• Clamp installs with a locknut for a firm, wedge-like hold.
• 3-in-1 ring organizes three lines (air lines plus power line).
• Compatible with standard truck, semi-trailer, and trailer setups.

What maintenance and lifespan can I expect?

Minimal maintenance is required: periodic inspection for rust or wear and occasional lubrication on connection points will keep the system functioning reliably. With proper installation and the kit’s corrosion-resistant materials, it offers long service life under regular highway conditions.

• Inspect rubber padding and clamp tension every few months.
• Replace springs if deformation or cracking appears.
• Clean salt and road grime to extend painted surfaces and stainless parts.
• Hand-tighten locknuts and check for loosening after first use.

Who is this for: The YiaChuii 2 PCS 20" Single Tender Spring Kit is made for truck and trailer owners, fleet maintenance shops, and mechanics who need a reliable, low-maintenance solution to keep air and electrical lines lifted and protected. It's especially suited to operators seeking a sturdy replacement for Phillips 17-145 or Tectran 9421-1 style assemblies, and for anyone needing corrosion-resistant hardware that stands up to heavy-duty, outdoor hauling environments.