DIN 74324 Nylon PA12 Suzi Coil Air Brake Tubing Assemblies | WABCO Style_Tubing & Coils_Tubing, Assemblies & Tools_Products

Technical Overview

Premium DIN 74324 Compliant Nylon PA12 Suzi Coil Air Brake Hose Assembly (12×1.5mm)

High-performance spiral coiled nylon air brake lines specifically engineered for heavy-duty European commercial vehicles, trucks, and trailer fleet connections. Fully compliant with rigorous German DIN 74324-1 standards, this premium dual assembly features one Red (Emergency) and one Yellow (Service) coil for standard pneumatic braking system routing.

Manufactured from top-tier plasticized and heat-stabilized Polyandide 12 (Nylon PA12) raw material, the tubing provides exceptional dimensional stability, low moisture absorption, and perfect coil shape retention. The robust 12mm OD × 1.5mm wall thickness (12×9mm) design guarantees optimized air flow volume for rapid braking synchronization and maximum road safety. Equipped with heavy-duty anti-kink steel spring guards and factory-crimped brass metric fittings (available in symmetric M16/M22 and asymmetric M18 adapters). Engineered to survive brutal chassis environments, road salt, UV exposure, and extreme operating temperatures from -40°F to 200°F. Fully interchangeable with WABCO and VOSS original equipment.

General Specifications

Material	Premium Polyamide 12 (Nylon PA12)
Tubing Size	12 mm OD × 1.5 mm Wall Thickness (12x9mm)
Working Length	4.0 Meters
Standard Compliance	ISO 7375 / ISO 7628 / DIN 74324-1
Fitting Material	High-Strength Heavy Duty Steel (Steel Fittings)
Kink Protection	Guards with Color-Coded Kink Protection (Red / Yellow)
Working Pressure	10 Bar (145 PSI)
Burst Pressure	Min. 30 Bar (435 PSI)
Operating Temperature	-40°C to +100°C (-40°F to +212°F)
Available Thread Configurations	Symmetric Configurations: M16 × 1.5 Male to Male / M22 × 1.5 Male to Male
Available Thread Configurations	Asymmetric/Adapter Configurations: M16 × 1.5 Male to M18 × 1.5 Female / M18 × 1.5 Female to Female
Application	Commercial vehicle air braking systems, heavy-duty truck & trailer pneumatic connecting lines (Interchangeable with WABCO 452 711 series).

Media
Compatible Tubing

Markets & Applications

Commercial vehicle air braking systems, heavy-duty truck & trailer pneumatic connecting lines (Interchangeable with WABCO 452 711 series)

Compliance

Part Numbers & Cross Reference

Part Number	Kink Protection Color	Thread Size (End A / End B)	Connection Type	Wabco Ref #
4161.0416161	Red (Emergency)	M16 x 1.5 Male / M16 x 1.5 Male	Symmetric Male	452 711 056 0
4161.0416162	Yellow (Service)	M16 x 1.5 Male / M16 x 1.5 Male	Symmetric Male	452 711 057 0
4161.0422221	Red (Emergency)	M22 x 1.5 Male / M22 x 1.5 Male	Symmetric Male	452 711 058 0
4161.0422222	Yellow (Service)	M22 x 1.5 Male / M22 x 1.5 Male	Symmetric Male	452 711 059 0
4161.0416181	Red (Emergency)	M16 x 1.5 Male / M18 x 1.5 Female	Asymmetric / Adapter	452 711 060 0
4161.0416182	Yellow (Service)	M16 x 1.5 Male / M18 x 1.5 Female	Asymmetric / Adapter	452 711 061 0
4161.0418181	Red (Emergency)	M18 x 1.5 Female / M18 x 1.5 Female	Symmetric Female
4161.0418182	Yellow (Service)	M18 x 1.5 Female / M18 x 1.5 Female	Symmetric Female