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TPM

Heavy Duty 12 FT 3-in-1 Air Lines for Semi Trucks

$84.99
✓ DOT certified ✓ Ships 24–48hr ✓ In stock
Quantity:
✓ DOT certified  ·  ✓ Free shipping over $450  ·  ✓ 30-day returns  ·  ✓ Free local pick up available
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Fleet & wholesale pricing available Order 10+ units and save 10–15%. Contact us →

Upgrade your rig with this reliable 12 FT 3-in-1 Air Line Assembly — combining service air, emergency air, and ABS/electrical power in one clean, tangle-free setup built for professional drivers and fleets.

Full Product Description:
The Heavy Duty 12 FT 3-in-1 Air Lines connect the tractor to the trailer with two DOT-rated rubber air hoses (red emergency, blue service) plus a 7-way ABS electrical cable, all bundled together to stay organized and tangle-free. The spiral wrap and coiled spring ends protect the lines from abrasion and kinking while allowing full extension during turns. Built with heavy-duty rubber, brass gladhand fittings, and a sealed 7-way plug for dependable performance in any weather.

Features:

  • 💪 Material: Heavy-duty rubber air lines with an ABS-rated 7-way electrical cable
  • 📏 Length: 12 ft working length (extends easily during turns)
  • ⚙️ Design: 3-in-1 — service air (blue), emergency air (red), and ABS electrical line
  • DOT Certified: Meets DOT standards for tractor-trailer air systems
  • 🔩 Fittings: Brass gladhand fittings, sealed 7-way plug, and spring-protected ends
  • ❄️ All-Weather: Weather-resistant for reliable year-round performance
  • 🚛 Applications: Semi-trucks and tractor-trailers — ideal for owner-operators, fleets, and repair shops
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Truck types
Class 7–8 tractor-trucks
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Trailer types
Dry van, flatbed, reefer, step-deck
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Makes
Kenworth, Peterbilt, Freightliner, Volvo, Mack, International
Standard
DOT FMCSA compliant — no modifications required

Not sure if this fits your application? Contact us — we'll confirm compatibility before you order.

Free shipping on orders over $450

Standard ground shipping included. Expedited options available at checkout.

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Ships within 24–48 hours

Orders placed before 2 PM ship same day. All items in stock and ready to go.

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30-day returns

Unused parts in original packaging can be returned within 30 days. No restocking fee.

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Fleet bulk orders

Need 10+ units? Contact us for dedicated fleet pricing and freight shipping quotes.

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