1990–1995 Toyota 4Runner · Air & Recovery

Air & Recovery

Air down for traction, air up to drive home. The compressors and hose kits that make that a two-minute job.

Airing down is the cheapest traction upgrade there is, and it only works if you can air back up. Everything here is universal — it fits any truck — but it's chosen for what a 4Runner actually needs on a trail: enough CFM to do four 33s without a coffee break, and hose that reaches the far tire. The guides explain duty cycle, CFM, and onboard versus portable.

Parts

At a glance: fitment, price & shipping

Part	Fits	Price	Shipping (lower 48)	Build time	Returns
Single 12V compressor + line kit	Universal	$299.99	$39.98	Not listed	30-day returns
Twin 12V compressor	Universal	$369.99	$39.98	Not listed	30-day returns
Twin 12V compressor + line kit	Universal	$499.99	$39.98	Not listed	30-day returns
Big Yellow portable compressor	Universal	$529.99	$39.98	Not listed	30-day returns
Quad air hose kit	Universal	$199.99	$39.98	Not listed	30-day returns
Tire deflator kit	Universal	$39.99	$10.99	Not listed	30-day returns

“Not listed” means the product page doesn’t give a build time — email us for the current estimate before you order. Every figure comes from the product page itself.

Not sure it fits your truck? Email us before you order · Tracked US shipping — shipping & build times · Returns & 7-day limited warranty

Guides

Onboard Air for a 2nd Gen 4Runner: Single, Twin, or Portable?Choosing between a single compressor, a twin, and a portable kit for a 90-95 4Runner — what each one is actually good at and who should buy which.What CFM Do You Actually Need? Off-Road Compressor NumbersCFM is the spec that decides how long you wait at the trailhead — not PSI. Real figures by tire size, and why the number on the box is optimistic.How Long Does It Take to Air Up After a Trail Run?Real timings for airing four tires back to highway pressure, what makes the difference, and how to cut a twenty-minute chore down to a few minutes.Compressor Duty Cycle Explained (And Why It Matters More Than You Think)Duty cycle is how long a compressor can run before it needs to cool down. Here's what the percentages mean and why a 50% unit frustrates you on four tires.Onboard vs Portable Air Compressor: Which Should You Buy?Mounted onboard air or a portable case kit? The honest tradeoffs on install, cost, air lockers, and whether you plan to keep the truck.Airing Down Is Free Traction. Deflators Make It Fast.Dropping tire pressure grows your contact patch 30-50% and costs nothing. Why rapid deflators are worth it, and how to air down without guessing.Airing Up All Four Tires at Once: How a Quad Hose Kit WorksAiring up one tire at a time means four separate setups, four waits, and four teardowns — usually while standing in the cold at the end of a long day.What Tire Pressure Should You Run Off-Road?Trail, rock, sand and snow pressures explained — the working range, why you start high and work down, and the limit you shouldn't cross without beadlocks.

Questions

What CFM do I actually need?

Enough to air four tires from 15 to 35 psi in a few minutes without the compressor overheating. The CFM guide below turns that into a number.

Onboard or portable?

Onboard if you air down every trip. Portable if it's occasional and you want it in a different truck someday. The guide below weighs both.

Other systems:Lighting Suspension & Steering Roof Racks 22RE Engine 3VZ-E Engine Hilux Surf (N130)

Air & Recovery

Parts

Single Air Compressor with Line Kit

Twin Air Compressor

Twin Air Compressor with Line Kit

Big Yellow Air Compressor

Quad Air Hose Kit

Tire Deflator Kit

At a glance: fitment, price & shipping

Guides

Questions

What CFM do I actually need?

Onboard or portable?