TRE 4x4 High Output On-Board Air Compressor 12V (75 L/min) – Air Locker & Tyre Inflation

Compact, powerful and built for hard use — the TRE 4x4 High Output On-Board Air Compressor (12V) delivers up to 75 L/min free flow and 61.6 L/min at 200 kPa (29 psi), making it ideal for air-locking differential activation and tyre inflation on and off the trail. A robust motor with thermal protection, sealed electrics and a serviceable air filter help it survive British mud, dust and weather.

Designed to hard-mount in the vehicle, the unit uses 3" (76 mm) class internals for sustained output, with a relay-controlled loom and dash switch for simple, reliable operation. Pair with a pump-up kit for fast inflation and add a manifold if you plan to run lockers on both the front and rear.

Key features

• High output: 75.1 L/min (no-load), 61.6 L/min at 200 kPa (29 psi).
• Thermal protection and sealed electrics for durability.
• On-board install with relay loom and switch for dependable control.
• Air-locker ready — supports activation for front and rear lockers via manifold.
• Serviceable filtration to keep dust and moisture out of the system.

What’s included

• Main compressor unit (12 V)
• Wiring harness with relay and dash switch
• Safety pressure valve
• Mounting support/bracket
• Air filter assembly
• Basic fixings/hardware

Technical specifications

Installation & usage notes (UK)

• Mount on a flat surface with ventilation. Keep the intake filter away from the spray.
• Wire via the supplied relay loom, fused appropriately (matching the current draw), to a reliable 12 V supply.
• For lockers, add a manifold and plumb solenoids; one compressor can operate front & rear lockers.
• Observe duty cycle; allow cool-down on long inflation sessions.

Recommended complementary items

• Air Compressors — browse our on-board & portable range.
• Tyre Repair — plugs, tools & emergency kits.
• Tyre Deflators — fast, repeatable deflation before trails.
• Air Locker Manifold — neat plumbing for dual lockers.

FAQs

1) Can it run front and rear air lockers?
Yes. With a suitable manifold, one compressor can operate front and rear lockers on most 4x4s.

2) Is it suitable for tyre inflation?
Yes. With ~61.6 L/min at 200 kPa, it inflates typical off-road tyres efficiently. Use a pump-up hose and gauge (sold separately).

3) Does it have thermal protection?
Yes — the motor includes thermal protection to prevent overheating during heavy use.

4) What wiring is included?
A relay-controlled loom and dash switch is included for safe, simple installation.

5) What is the duty cycle?
Listed around 33%. For long inflation sessions, pause periodically to cool the unit.

6) Where should I mount it?
Inside the engine bay or cab, where the intake stays clean and dry, with adequate ventilation and access to service the filter.

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