# VIAIR VIAIR 400P EF Automatic portable compressor

Canonical page: https://configmyrig.com/products/viair-400p-ef-automatic-portable-compressor

Portable automatic tire-inflation kit with Enhanced Flow motor and SAE battery-clamp connection.

## Selected configuration

- Part/component: 40145
- Configuration: 12V EF automatic kit / 40145
- Listed parts: $349.50 USD / selected configuration
- Source checked: November 6, 2026
- Fitment: Universal portable equipment for US2024+ LC250, including1958/Land Cruiser/2024First Edition. Exact Toyota-approved12V connection and hybrid operating state must be confirmed before use; no direct fit or ordinary accessory-socket approval.
- Product mass: Product weight unverified
- Net vehicle addition: Net addition unverified
- Weight basis: 10.35lb is maker product net weight, not verified complete carried kit with bag/hoses/clamps or net installed vehicle addition. Shipping weight and current/pressure ratings are not substituted.
- Professional install: 0 hr; researched planning estimate
- Basis: 0hours permanent vehicle installation for portable clamp-powered use. Hose/filter setup, inspection, cooling, packing and inflation time excluded. Permanent wiring/mounts require a separate quote. Based on exact40145 maker operating manual; no published professional fitting hours.
- Contents: Compressor/sand tray, SAE battery clamps and power connection with40A inline fuse holder, coil hose, inflation gun, inflation tips/Presta adapter and carry bag per maker page. Vehicle mounting and alternate power attachments separate.
- Critical specifications: 12V; 150PSI maximum working pressure; 30A maximum running draw. Maker duty cycle100% at40PSI /33% at100PSI. IP54; compressor11.8×7.57×6.69in; listed net product mass10.35lb. 25ft hose and6ft power cord. Manual cut-out155PSI is a control setting, not a higher working-pressure allowance.
- Supporting work: Automatic control stops the motor between inflation-gun demands. This portable kit is separate from a permanent onboard compressor installation.

## Prerequisites

- Selected product / listed contents (included): Compressor/sand tray, SAE battery clamps and power connection with40A inline fuse holder, coil hose, inflation gun, inflation tips/Presta adapter and carry bag per maker page. Vehicle mounting and alternate power attachments separate.
- Hybrid12V supply and operating state (check): Maker manual requires the engine running. LC250 hybrid engine operation can cycle: obtain Toyota/VIAIR confirmation for the approved operating state and connection point. Use supplied rated fused clamp circuit; never assume a cabin socket or small SAE accessory harness can supply30A running draw or inrush.
- Heat, duty cycle and tire pressure (check): Follow current operating/duty limits, ventilation and hose heat precautions. Allow cooling before storage; IP54 is not waterproof. Set pressure for the tire/load and vehicle, not the150PSI compressor maximum.
- Installation / compatibility notes (check): Automatic control stops the motor between inflation-gun demands. This portable kit is separate from a permanent onboard compressor installation.
- Installed net weight (check): Product weight or factory equipment removed is not fully verified. Do not use shipping weight or assume zero additional load.

## Seller offers (selected configuration, low to high)

- [VIAIR](https://viaircorp.com/products/400p-ef-automatic-portable-compressor?variant=44649309831329): $349.50

Prices are dated snapshots; tax, shipping, installation and unlisted supporting equipment are extra. Availability is not inferred.

## Installation resources

- [VIAIR40145 EF Automatic operating and setup manual](https://viaircorp.com/cdn/shop/files/User_Manual_R1-40145.pdf?v=472243025642491719): official; Exact40145portable compressor; not LC250-specific electrical approval. Exact manufacturer manual cover/model and operation reviewed. Engine-running instruction requires hybrid-specific confirmation. No exact official install video verified.

## All documented options

- [12V EF automatic kit / 40145](https://configmyrig.com/products/viair-400p-ef-automatic-portable-compressor): 40145; $349.50 USD / selected configuration; Product weight unverified

## Owner evidence

No sufficiently matched report added. No review rating is inferred.

## Related guidance

- [Planning guide](https://configmyrig.com/guides/electrical-system-planning)
- [VIAIR](https://configmyrig.com/brands/viair)
- [Onboard air](https://configmyrig.com/categories/onboard-air)

AI-assisted planning; exact vehicle/application and current supplier documentation require confirmation.