400P EF Automatic Portable Compressor

Part number: 40145
Brand: VIAIR
Price range: $349.50
Last checked: Nov 5, 2026

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Portable vs Onboard Air Compressors: A 4x4 Parts and Fitment Guide

Compare portable and onboard 4x4 compressors, ARB model numbers, VIAIR alternatives, inflation accessories and the real cost of installation.

Spec sheet

Collected from 1 supplier page - confirm fit with the supplier before ordering.

The 400P EF Automatic is an updated version of our popular 400P Automatic Portable. It features VIAIR's new EF (Enhanced Flow) Technology that delivers up to 10% faster fill and 20% more performance, getting you back on the road faster than ever. EF compressors also feature an SAE power cord that allows you to use different power attachments for maximum versatility, an updated head for better heat dissipation and the same legendary VIAIR durability.

Suppliers (1)

VIAIR
400P EF Automatic Portable Compressor · Orderable · stock unverified
Checked Nov 5, 2026
$349.50
View at supplier

Price history

Date	Supplier	Price	Stock
Nov 5, 2026	VIAIR	$349.50	Orderable - stock unverified