Up Down Air 4-Tire Inflation System — Jeep Wrangler JL/JLU (Passenger Engine Bay) by OVS

Manage all four tires from the engine bay — fast, simple, and reliable

This Gen2 4 Tire Inflation System is built for Jeep Wrangler JL and JLU models with mounting in the passenger-side engine bay. It lets you inflate, deflate, or equalize all four tires quickly using either an onboard air source or a portable compressor, with pre-cut hoses and quick-connect fittings for straightforward installation.

Benefits

• Save time — adjust all four tires at once instead of servicing them one by one.
• Improve fuel economy and handling — keep tire pressures at the correct level for road or trail.
• Reduce wear and maintenance — consistent pressures help extend tire life and reduce uneven wear.
• Increase safety and confidence — quick access to correct tire pressure when conditions change.
• Flexible use — works with a permanent onboard air source or a portable compressor for on-road or off-road needs.

Features

• Inflate, deflate, or automatically equalize all four tires from one controller.
• ADS controller box with two inlet valves to accept a permanent or portable air source.
• Includes a 90 psi pressure regulator and a 150 psi blow-off (safety) valve.
• Pre-cut hoses and push-to-connect fittings for a faster, cleaner installation specific to JL/JLU.
• DOT-approved 3/8" air line throughout the system and 90-degree Schrader valves to maintain airflow to each tire.
• Comes with quick-connect chucks featuring the Betty Bar for easy connection and disconnection.
• Compatible with common compressors such as EGOI 2, ARB, and Viair.
• Includes storage options and hardware to integrate with available compressor bracket kits.

Specifications

• Application: Jeep Wrangler JL and JLU — engine bay, passenger side (Gen2 kit)
• Air line: DOT-approved 3/8" (throughout system)
• Pressure regulator: 90 psi
• Blow-off (safety) valve: 150 psi
• Controller: ADS control box with two inlet valves (permanent or portable air source)
• Connectors: Push-to-connect fittings; 90-degree Schrader valves
• Quick connect chucks: 8 with Betty Bar feature
• Tire whips: 4 green tire connect whips (includes storage bag)
• Compatibility: Designed to work with EGOI 2, ARB, and Viair compressors
• Installation: Includes pre-cut hoses and all required fittings for the JL/JLU passenger-side engine bay
• Mounting options: Compatible with complete bracket kits for under-engine, under-seat, and rear-cargo area mounting
• Warranty: 5-year limited warranty