Phillips 302171 | 15' 3-in-1 ABS Electrical & Air Line Assembly

Phillips 15' 3-in-1 ABS Electrical & Air Combo Assembly – Zinc Die-Cast Plugs

Upgrade your tractor-trailer connections with the Phillips 15-Foot 3-in-1 ABS Electrical & Air Combo Assembly. This heavy-duty assembly combines two air brake lines and one 7-way ABS electrical cable into a single organized bundle, helping reduce tangled connections and simplify tractor-to-trailer hookups.

Featuring durable zinc die-cast electrical plugs, rubber air hoses, and protective external spiral wrapping, this Phillips assembly is engineered for demanding commercial trucking applications. The integrated design provides a convenient solution for connecting trailer electrical systems, service air brakes, and emergency air supply lines.

Whether you're replacing worn tractor-trailer air lines, upgrading a damaged electrical cable, or maintaining a fleet of heavy-duty semi trucks, this 15-foot combination assembly delivers a practical, professional replacement solution.

15-Foot Assembly | 3-in-1 Electrical & Air Lines | 7-Way ABS Cable | Zinc Die-Cast Plugs

Features & Benefits

• 3-in-1 Combination Assembly: Integrates one electrical cable and two air brake lines into one organized bundle.
• 15-Foot Length: Provides the specified assembly length for compatible tractor-trailer configurations.
• 7-Way ABS Electrical Cable: Green-jacketed electrical cable for compatible commercial trailer electrical and ABS circuits.
• Zinc Die-Cast Plugs: Heavy-duty electrical plug housings designed for durability.
• Red Emergency Air Line: Connects the tractor to the trailer emergency/supply air circuit.
• Blue Service Air Line: Connects the tractor to the trailer service/control air circuit.
• Rubber Air Hose Construction: Designed for demanding commercial vehicle operation.
• External Spiral Wrap: Keeps the three lines organized and helps reduce tangling.
• Kink & Abrasion Resistance: Designed to resist damage from routine hose movement and contact.
• Large Coupling Grips: Helps make air line coupling and uncoupling more convenient.
• Commercial Truck Applications: Suitable for compatible heavy-duty tractor-trailer connections.

Complete 3-in-1 Tractor-Trailer Air & Electrical Connection

The Phillips 3-in-1 ABS electrical and air assembly combines the three essential connections between a truck tractor and trailer:

• Green Electrical Cable: Provides the 7-way electrical connection for compatible trailer lighting and ABS electrical circuits.
• Blue Service Air Line: Carries air brake control pressure from the tractor to the trailer.
• Red Emergency Air Line: Supplies compressed air to the trailer air brake system.

Combining these connections into one spiral-wrapped assembly helps maintain an organized connection area behind the cab while reducing the need to manage three separate loose lines.

Heavy-Duty Zinc Die-Cast Electrical Plugs

This Phillips assembly features zinc die-cast electrical plugs designed for commercial trucking environments.

The reinforced metal plug housings provide durability for repeated tractor-trailer electrical connections. The electrical cable is housed in a protective jacket designed to resist chemical exposure and abrasion encountered during normal vehicle operation.

Always inspect electrical contacts, plug housings, and cable condition during routine maintenance.

Rubber Service & Emergency Air Brake Hoses

The assembly includes two rubber air hoses with color-coded identification:

• Blue: Service / control air brake line
• Red: Emergency / supply air brake line

The air hoses are designed for commercial vehicle air brake applications and feature fittings for compatible tractor-trailer air connections.

Properly functioning air lines and gladhand connections are essential for maintaining trailer brake operation and reducing air leakage.

15-Foot Spiral-Wrapped Assembly

The 15-foot Phillips combination assembly provides an organized, flexible connection between compatible commercial trucks and trailers.

Its protective spiral wrap holds the air hoses and electrical cable together, helping reduce tangling and abrasion from separate lines contacting one another.

This design is particularly useful for fleet maintenance operations, truck repair shops, and owner-operators looking for an integrated replacement assembly.

Important: Verify the required assembly length, lead lengths, routing, and trailer articulation clearance before ordering. A 15-foot nominal assembly is not appropriate for every cab, frame, or trailer configuration.

Compatible Heavy-Duty Truck Applications

The Phillips 15-foot 3-in-1 ABS assembly is intended for compatible tractor-trailer electrical and air brake connections.

Potential applications include properly equipped:

• Freightliner Cascadia and other Freightliner tractors
• Kenworth T680, T880, W900, and related tractors
• Peterbilt 579, 389, 567, and related tractors
• International heavy-duty trucks
• Volvo VNL highway tractors
• Mack commercial truck tractors
• Western Star trucks
• Other Class 7 and Class 8 tractor-trailer combinations

Fitment Note: This is a connection-configuration-specific product rather than a guaranteed fit for every vehicle model. Verify the 7-way electrical connection, air fittings, lead lengths, and routing requirements before purchasing.

Phillips 3-in-1 ABS Assembly Cross References

Common commercial truck parts catalog interchange references include:

• Phillips: 302171
• Phillips Manufacturer Number: 30-2171
• International / Fleetrite: FLTC3171
• Tectran: 169157
• Tramec Sloan: 451098
• Dayton Parts: 902171
• OTR: OTR6818
• HD Value: NT451098
• TruckPro: PM30-2171
• Alliance: ABP N42AAPL15
• Additional Industry Reference: AEC157

Cross-Reference Notice: These numbers are provided for parts identification and interchange research. Comparable assemblies may differ in plug construction, hose material, fitting sizes, lead lengths, or included hardware. Verify all specifications before treating any cross-reference as a direct replacement.

When Should You Replace Tractor-Trailer Air & Electrical Lines?

Combination air and electrical assemblies should be inspected regularly for physical damage, contamination, and connection problems.

Common reasons for replacement include:

• Cracked, abraded, or damaged air hoses
• Air leaks around fittings or hose connections
• Damaged electrical cable insulation
• Corroded or damaged electrical plug contacts
• Broken or loose electrical plug housings
• Excessive stretching, kinking, or tangled connections
• Intermittent trailer electrical or ABS connection faults
• Damage caused by repeated tractor-trailer articulation

Inspect the mating trailer socket, gladhand seals, air couplings, and mounting accessories whenever replacing the assembly.

Phillips 302171 Product Specifications

• Brand: Phillips Industries
• Part Number: 302171
• Manufacturer Part Number: 30-2171
• Product Type: 3-in-1 Electrical & Air Combo Assembly
• Nominal Assembly Length: 15 Feet
• Electrical Cable: 7-Way ABS
• Electrical Cable Jacket: Green
• Electrical Plug Material: Zinc Die-Cast
• Air Hose Material: Rubber
• Service Air Line: Blue Identification
• Emergency Air Line: Red Identification
• Air Fitting Size: 1/2-Inch NPT
• Assembly Protection: External Spiral Wrap
• Primary Application: Compatible Heavy-Duty Tractor-Trailer Connections
• Listed Warranty: 1 Year, Subject to Manufacturer Terms
• Selling Quantity: 1 Complete 3-in-1 Assembly

Installation & Maintenance Information

Before purchasing or installing this assembly, confirm the original cable length, electrical connector configuration, air brake fitting dimensions, and required line routing.

Route the assembly to maintain adequate clearance during tractor-trailer turning and suspension movement. Keep hoses and wiring away from sharp edges, excessive heat, and moving components.

After installation, inspect the electrical connections and perform the applicable air system leakage and operational checks.

Safety Warning: Commercial truck air brake systems contain stored compressed air. Follow the vehicle manufacturer's procedures for safely securing the vehicle, depressurizing applicable circuits, and servicing air brake connections.

Professional Installation Recommended: Tractor-trailer electrical and air brake connections are safety-critical. Installation and testing should be completed by qualified personnel following manufacturer-approved procedures.