CheeMuii Products

The CheeMuii 15FT 3-in-1 Semi Truck Air Lines Kit is a heavy-duty connection assembly designed for commercial tractor-trailers, semi trucks, and fleet haulers. Replacing damaged or aging trailer connections usually involves sourcing separate air hoses, an electrical harness, spring tenders, and gladhands. CheeMuii streamlines this maintenance by packaging all vital hookup hardware into a single, cohesive, DOT-compliant setup.

In terms of build quality, this kit distinguishes itself with upgraded materials. The air lines feature a 3-layer molded, double-braided rubber construction that resists kinking and abrasion under high pressure. The gladhands come equipped with solid aluminum handles rather than failure-prone rubber grips, providing secure leverage when connecting or disconnecting under varying weather conditions. Both ends of the air lines and the SAE J560 7-way ABS cable are reinforced with stainless steel spring guards to absorb tension and prevent bending fatigue.

Everyday usability is another strong point of the CheeMuii assembly. The bundle includes two 16-inch galvanized tender springs with heavy-duty 304 stainless steel clamps to maintain proper tension and keep lines off the catwalk. It also includes a gladhand storage dock for tidy bobtailing, extra gladhand seals, and Teflon tape. The 7-way green ABS cord is rated for extreme cold down to minus 85 degrees Fahrenheit, ensuring electrical integrity for trailer lighting and brake sensors in demanding winter conditions.

While the overall package offers exceptional utility, long-haul drivers operating in heavy rain and road salt should consider adding extra dielectric grease or wrapping the 7-pin plug housing with moisture-sealing tape to maximize corrosion resistance over time. For fleet managers and owner-operators needing a reliable, comprehensive replacement line assembly that avoids dealer markups, the CheeMuii 3-in-1 kit offers dependable performance and outstanding build quality.

Assembly Length: 15 Feet (4.57 meters)

Hose Diameter: 3/8-Inch Inside Diameter (ID)

Certifications: DOT SAE J1402A (Air Hose), SAE J2394 (ABS 7-Way Cable, -65°C / -85°F), SAE J560 (Plug Connector)

Materials: Brass fittings, EPDM rubber hose, Zinc die-cast connector, Aluminum gladhand grips, Galvanized steel tender springs, 304 stainless steel clamps

OEM Cross-Reference Compatibility: Phillips 30-2151, 30-2171, 11-8115; Tectran 169157, 13S15401, PE13000; Tremec Sloan 451097, 455180DSET; Velvac 035042, 035045; Bendix 278850, 278851

Package Contents: 1x 15FT 3-in-1 Air/Electric Line, 2x 16-Inch Tender Spring Kits, 1x Pair Gladhands (Red & Blue), 1x Pair Aluminum Handles, 1x Gladhand Mounting Bracket, 4x Gladhand Rubber Seals, 1x Teflon Tape

The CheeMuii 12FT 3-in-1 Semi Truck Air Line Kit is a comprehensive connection package designed for commercial truck drivers, fleet operators, and owner-operators. By merging the service air hose, emergency air hose, and 7-way ABS power cord into one durable spiral wrap, this assembly eliminates disorganized clutter across the catwalk and significantly reduces the risk of line chafing and premature wear.

Performance and safety are backed by full regulatory compliance. The air lines meet DOT SAE J1402A specifications, while the 7-way green ABS electrical cable is certified to SAE J2394, maintaining flexibility and conductivity in harsh cold environments down to -85°F (-65°C). The standard zinc die-cast 7-way plug conforms to SAE J560 requirements, reinforced with 3.94-inch stainless steel buffer springs on both ends to absorb mechanical tension during sharp turns.

In terms of build quality and inclusion, the kit comes fully prepared for immediate installation. It features color-coded aluminum glad hands with four additional replacement rubber seals to prevent air leaks, alongside two corrosion-resistant 304 stainless steel clamps. The 25-inch galvanized carbon steel tender spring provides resilient suspension, keeping the lines held high above moving deck parts.

Potential buyers should verify their required reach before purchase, as the 12-foot working length is ideal for standard tractor-trailer distances but may not accommodate extended wheelbases. Additionally, the included tender spring might require minor adjustment depending on your mounting point height. Overall, this 3-in-1 air line kit provides a dependable, high-grade replacement that delivers smooth braking control and stable electrical transmission.

Length: 12 Feet (144 inches)

Hose Diameter: 3/8 inch ID Air Hoses

Cable Standard: SAE J2394 (4/12-2/10-1/8) Green Cable rated to -65°C / -85°F

Hose Standard: DOT SAE J1402A

Plug Standard: SAE J560 Zinc Die-Cast 7-Way Plug

Tender Spring: 25-Inch Galvanized Carbon Steel

Hardware: 304 Stainless Steel and Rubber Clamps

Included Accessories: 1 Pair Glad Hands (Red/Blue), 4 Rubber Gladhand Seals, 1 Tender Spring, 2 Clamps

This 3-in-1 air line assembly replaces the following industry part numbers:

3-in-1 Lines: Philips 30-2151, 30-2171, 302171, 11-8115; Tectran 169157, 13S15401, PE13000; Tremec Sloan 451097, 455180DSET; OTR 6818, 6814; Peterbilt PE13000.

Glad Hands: Velvac 035042 / 035045; Tectran 1011EF / 1011SF; Bendix 278850 / 278851.

Tender Spring: Phillips 17-145; Tectran 9421-1.