ARB 6mm Air Line Pressure Supply Kit for Air Lockers - 171321

The ARB 6mm Pressure Supply Kit (171321) is a heavy-duty pneumatic upgrade designed to improve the reliability and serviceability of your vehicle's locking differentials. By transitioning to a 6mm pneumatic standard, this kit provides a more robust alternative to older 5mm systems. It is completely retrofittable for all ARB Air Lockers currently utilizing 3.5mm copper tube seal housings.

This kit features a black polymer airline with 50% more wall thickness than previous designs, offering significantly higher resistance to the cuts, abrasions, and heat-cycling common in off-road environments. The included bulkhead fittings are highly configurable, allowing for either a traditional straight connection or a 90-degree orientation to accommodate tight mounting locations. The system also utilizes 1/8 BSP standard threads and push-in fittings with positive-click disengagement for a secure, leak-free seal.

• Manufacturer Part Number: 171321
• Airline: 6mm black polymer with 50% increased wall thickness
• Fittings: 6mm push-in with positive-click disengagement
• Bulkhead Connector: Configurable for straight or 90-degree installation
• Threads: Standard 1/8 BSP fittings
• Installation Note: Compression nut is best set using a PZ3 Pozidriv screwdriver to prevent overtightening of the copper tube connection
• Compatibility: Fits all ARB Air Lockers with 3.5mm copper tube seal housings