TRE 4x4 Twin Cylinder On-Board Air Compressor 12V — 178 L/min, 150 PSI (with Loom & Switch)

Air up faster and run lockers reliably with the TRE 4x4 Twin Cylinder 12V On-Board Air Compressor. Delivering up to 178 L/min and controlled by an integrated pressure switch (on 110 PSI / off 145 PSI), this twin-motor unit is built for rapid tyre inflation and air-locking differential duty on serious 4x4 builds. A high-output design, thermal overload protection and sealed electrics make it a dependable workhorse for British weather and muddy lanes.

Key features

• High output: up to 178 L/min free flow for quick air-ups on larger off-road tyres.
• Automatic pressure control: built-in switch (ON 110 PSI / OFF 145 PSI) stabilises system pressure.
• Twin-motor, dual-cylinder architecture for sustained airflow.
• Thermal protection & sealed electrics for durability in dust, mud and spray.
• On-board install kit: supplied relay loom and dash switch for clean, reliable control.

What’s included

• TRE 4x4 twin-cylinder compressor (12 V)
• Relay wiring harness and dash switch
• Multi-position mounting support/bracket
• Safety pressure valve
• Basic fixings/hardware

Technical specifications

Installation & usage notes (UK)

• Mount on a flat, ventilated surface; keep intake filters away from direct spray.
• Wire via the supplied relay loom with correct fusing and heavy-gauge cable.
• For front & rear lockers, add a distribution manifold and plumb to solenoids.
• Observe duty cycle—allow periodic cool-down during extended inflation sessions.

Recommended complementary items

• Air Compressors — browse on-board & portable options.
• Air Accessories — manifolds, pump-up kits, air tanks & fittings.
• Tyre Repair — plugs, tools & emergency kits.
• Tyre Deflators — quick, repeatable airing-down.

FAQs

1) Will this run front and rear air lockers?
Yes. With a suitable manifold, one compressor can operate multiple locker solenoids while maintaining system pressure.

2) How fast will it inflate tyres?
With up to 178 L/min free flow, it’s designed for rapid airing-up; actual time varies with tyre size, ambient temperature and target PSI.

3) Does it include wiring?
Yes. A full wiring loom with a relay and a dash switch is supplied for straightforward installation.

4) What are the cut-in/cut-out pressures?
The integrated switch pulls in at 110 PSI and cuts out at 145 PSI to stabilise system pressure.

5) Is it weather-resistant?
Yes — key components are sealed to resist dust and moisture for dependable off-road use.

6) Where should I mount it?
In the engine bay or cab on a flat, ventilated surface with the intake protected from water and debris, and accessible for filter service.

Explore related categories: Air Compressors • Air Accessories • Tyre Deflators • Tyre Repair