CheeMuii 12FT 3-in-1 Semi Truck Air Line Kit — Red/Blue Air Brake Hoses, 7-Way Cord & Gladhand Kit with Stainless Springs

CheeMuii's 12FT 3-in-1 semi truck air line kit is a complete replacement assembly that combines 12-foot red/blue air brake hoses, a 7-way electrical cord, gladhands, gladhand holder, and tender spring hardware for trailer and tractor hookups.

This all-in-one kit is engineered for heavy-duty highway use and supplied with certified components to meet common industry specifications. It includes a double-braided air line design, stainless spring protection at both ends, a zinc die-cast 7-way plug, an aluminum gladhand handle, and mounting hardware so you can replace or upgrade your trailer connections in one service interval.

What certifications and specifications does this kit meet?

The CheeMuii kit is built from parts that comply with established trucking standards for air and electrical connections. Materials and dimensions are selected to match SAE and DOT testing protocols, ensuring compatibility and safe operation when installed correctly.

• Air line: DOT SAE J1402A 3/8" ID hose for service lines
• ABS cable: SAE J2394 rated and cold-tested to -65°C/-85°F for ABS green cable
• 7-way electrical plug: Meets SAE J560 requirements with zinc die-cast housing
• Full accessory pack: seals, Teflon tape, gladhand holder, and tender springs included

How does the kit protect hoses and wires during use?

CheeMuii uses stainless-steel springs over both ends of the air brake hoses and ABS cable to prevent chafing and reduce stress at connection points. Those spring jackets act as a flexible shield that cushions cables during coupling, uncoupling, and when the rig articulates.

• Stainless spring joints on both air and ABS ends for abrasion resistance
• Double-braided air hoses resist twisting and increase burst pressure
• Galvanized carbon-steel tender springs and 304 stainless clamps for long life
• Aluminum gladhand handles reduce wear compared with rubber grips

What parts are included and how do they make installation easier?

The package supplies a ready-to-install set of connectors and mounting pieces so you can replace a trailer assembly without sourcing separate components. Having the correct seals, gladhand handles, holder, and springs in one kit reduces guesswork and shortens installation time.

• One 12FT 3-in-1 air line assembly (red/blue/ABS + 7-way cord)
• One pair of gladhands, gladhand handles, and four gladhand seals
• Gladhand mounting bracket for secure storage on the vehicle
• Three tender spring kits (two 16" and one single 16") plus Teflon tape

Will this kit fit my truck and replace OEM parts?

The CheeMuii assembly is designed to be compatible with many common OEM and aftermarket connections and is offered as a direct replacement for multiple popular part numbers. Cross-reference your existing part numbers or compare physical dimensions to ensure fitment before purchase.

• Replacement-compatible with many Philips, Tectran, Tremec Sloan, and Peterbilt assemblies
• Gladhands compatible with Velvac, Tectran, Bendix models listed
• Meets SAE/DOT standards used by most North American heavy trucks
• Includes seals and tape to reseal threaded or flared fittings during swap

Who is this for: Fleet technicians, owner-operators, and service shops that need a single, certified replacement assembly for truck–trailer air and electrical connections will find this kit practical. It’s aimed at users who want durable materials—aluminum handles, stainless springs, braided hoses—and a full accessory pack to perform a reliable, durable install without sourcing extra parts.