DOT & SAE Compliant • Direct Chinese Factory

Heavy-Duty 3-in-1
Air Power Lines

Engineered for North and South American heavy truck aftermarket. Direct-from-factory pricing with IATF 16949 quality standards and rapid 3-7 days dispatch on stock SKUs.

Get Instant Quote Key Specifications
6,000+m²
Own Facility
DOT
SAE FMVSS
<0.5%
Defect Rate
50 Pcs
Flexible MOQ
ROADSPOWER 3-in-1 Air Power Line Assembly
OEM Cross-Referenced

Extreme Weather Rated

Tested to withstand extreme operational temperatures from -40°C (-40°F) up to 100°C (212°F). High-tensile rubber and heavy-duty spiral wrap prevent kinking and abrasion.

100% Leak & Tensile Tested

Every 3-in-1 assembly undergoes multi-node pressure burst testing and tensile strength validation. Zero leakage guarantees fleet safety and minimizes warranty claims.

Low MOQ & Customization

Flexible ordering starting at 50 pcs. Support for custom hose lengths, specific gladhand configurations, custom laser-etched part numbers, and private-label packaging.

Essential Buyer Resources

What You Need to Know Before Ordering

We provide transparent engineering data and resources to help fleet managers and parts distributors make informed procurement decisions.

Interchange Database

OEM Cross-Reference

Our 3-in-1 air power lines perfectly replace and match major OEM brands like Bendix, Haldex, Tectran, and Phillips. Request our digital cross-reference sheet to instantly match your active SKUs.

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Quality Verification

Free Sample Kit Program

Qualified distributors and fleet procurement managers can request a free sample kit (including air line fittings, spiral wrapping, and raw material swatches) to test before committing to bulk volumes.

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Co-Development

Branded Retail Packaging

Build your local brand value with our custom private-label services. We offer custom-designed carton boxes, laser-etched logos, private part numbers, and customized QR barcoding.

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ROADSPOWER Core Catalog

High-Volume 3-in-1 Assemblies

Pre-assembled air and electrical lines designed to simplify installation, protect core cables, and extend heavy-duty truck service life.

12 Feet 3-in-1 Air Power Line Whole Installation Kit Top Selling SKU

12 Ft 3-in-1 Installation Kit

P/N: RP-3IN1-12 | OEM Ref: 30-2151 Style

  • • Dual SAE J1402 rubber air lines
  • • SAE J560 7-way plug (heavy-duty ABS)
  • • Durable spiral wrap prevent kinking
15 Feet 3-in-1 Air Power Line Whole Installation Kit Fleet Standard

15 Ft 3-in-1 Installation Kit

P/N: RP-3IN1-15 | OEM Ref: Phillips 30-2155 Style

  • • Extra length for sleeper cabs & slide tandems
  • • Dynamic spring guard strain relief
  • • Color-coded red/blue gladhand grips
Heavy Duty Air Power Line Clamp Accessory

Heavy Duty 3-Hole Clamp

P/N: RP-CLAMP-03 | Heavy Duty Air Line Clamp

  • • UV-resistant high-impact polymer
  • • Single-bolt lock for quick line adjustment
  • • Prevents line-dragging and road chafing
Verified Chinese OEM Factory

6,000m² Production Ground in Ningbo

ROADSPOWER is a fully integrated manufacturer, not a trading middleman. Located just 30 km from Ningbo Port, we run 6 automated production lines managing raw material processing, brass fitting extrusion, and final assembly in-house.

01

ISO 9001 & IATF 16949 Managed

SOP-driven production trace-ability from raw materials to finished export cargo.

02

Full In-House Performance Lab

We perform salt spray, air tightness, extreme pressure burst, and tensile tests in every batch.

03

Direct Ningbo Port Proximity

Located only 30km from Ningbo port, enabling rapid DDP/FOB logistics to the Americas.

North American Compliance

Our products are manufactured to comply with strict North American highway standards, eliminating customs delays and ensuring safety.

DOT
FMVSS Compliant
SAE
J1402 & J560 Standards
ISO
9001:2015 Certified
SGS
Inspection Approved
QC Testing in ROADSPOWER Lab
Got Questions?

Frequently Asked Questions

Can't find the answer you need? Get in touch with our technical sales team for comprehensive support.

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What is your minimum order quantity (MOQ) for 3-in-1 lines?

Our standard MOQ is 50 pieces per SKU for standard lengths (12ft/15ft). For customized lengths, specific private labeling, or customized brand boxes, the MOQ is 200 pieces per SKU. Mixed pallet orders are highly welcome.

Are your 3-in-1 air lines fully DOT and SAE compliant?

Yes, absolutely. All air hoses comply strictly with SAE J1402 standards, and the 7-way electrical plugs conform to SAE J560. The assemblies carry complete DOT certification required for highway usage in North America.

Can we request customized fittings or gladhand attachments?

Yes. We offer complete customization. You can customize the fitting threads (e.g., NPT sizes), choose standard or heavy-duty anodized aluminum gladhands, select custom colors for gladhand grips, or adjust hose lengths up to 20 feet.

What is your production lead time and port of shipment?

For in-stock standard configurations, we can dispatch within 3 to 7 business days. Mass production / custom OEM orders typically take 15 to 25 days. All products are shipped from Ningbo Port (Zhejiang, China), providing swift global transit.
Ready to Scale?

Request a Free Quote
& Sample Kit Today

Send us your procurement requirements, target market (North/South America), and estimated annual volume. Our technical sales managers will provide an official quotation sheet within 12 hours.

Email Support

megan@roadspower.com

Call / WhatsApp

+86 13586888913 (Mega)

Ningbo Headquarters

Ningbo, Zhejiang Province, China

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We respect your privacy. All technical specifications are kept confidential.