ROLAIR 4090HK17 Wheeled Gas Air Compressor, 9 Gallon Twin Tank, 163cc Honda 5.5 HP Engine, 9.3 CFM @ 90 PSI

The Rolair 4090HK17 is a wheeled, twin-tank gas air compressor built for framing and roofing contractors. It delivers 9.3 CFM delivered (13.1 CFM displaced) at 90 PSI using a 163 cc (5.5 HP) Honda GX160 four-cycle engine and a cast-iron twin-cylinder single-stage pump. One unit includes the compressor, pressure gauge, discharge hose, intake filter and dual safety relief valves.

Key Features

• High CFM output: Delivers 9.3 CFM @ 90 PSI (13.1 CFM displaced), suitable for industrial air-powered tools.
• Honda engine: Powered by a 163 cc (5.5 HP) Honda GX160 four-cycle engine with automatic idle-down for fuel efficiency.
• Cast iron pump: Single-stage pump with cast-iron twin cylinders, splash lubrication and Swedish lamellar reed valves.
• Low oil protection: Engine features low oil shutdown to prevent overheating damage when oil levels are low.
• Fuel efficiency: Atmospheric unloading system prevents oil consumption and automatic idle control saves fuel.
• Easy monitoring: Oil sight gauge and 0-200 PSI pressure gauge in 5 lb graduations allow quick checks.
• Portable build: Wheelbarrow-style steel and cast iron construction on wheeled tanks measures 46 x 19 x 28 in.

Specifications

Manufacturer model

4090HK17

Sell unit

1 gas air compressor

Material

Steel and cast iron

Engine

163 cc (5.5 HP) Honda GX160 4-cycle

Tank capacity

9 gallons (twin tank)

CFM delivered

9.3 CFM @ 90 PSI

CFM displaced

13.1 CFM

Operating pressure range

110-135 PSI

Cylinders

2, single-stage

Lubrication

Splash lubrication

Pump oil capacity

34 oz.

Dimensions (L x W x H)

46 x 19 x 28 in.

Shipping weight

185 lb.

Shipping dimensions

47 x 22 x 36 in.

Intended use

Framing, roofing and industrial air tool supply

Fit and Compatibility

Runs pneumatic nailers and other air tools common to framing and roofing, including those requiring 90 PSI operation. Uses standard gas compressor hoses and fittings; check tool CFM requirements against the 9.3 CFM @ 90 PSI delivered rating.

Frequently Asked Questions

What is included with the compressor?

Standard equipment includes a 0-200 PSI pressure gauge, automatic pilot valve operation, industrial flexible discharge hose, intake filter with silencer and replaceable element, Schmidt belt tightening device, air-cooled aftercooler, enclosed steel belt guard and dual safety relief valves.

What engine does it use?

It uses a 163 cc (5.5 HP) Honda GX160 four-cycle engine with retractable starter, on/off switch and low oil shutdown.

How much oil does the pump hold?

The splash-lubricated pump holds 34 oz. of oil, checked via the oil sight gauge.

How heavy is it and can it be moved around a jobsite?

Shipping weight is 185 lb.; the wheelbarrow-style wheeled twin-tank design makes it portable around framing and roofing jobsites.

What pressure does it operate at?

The operating pressure range is 110-135 PSI, delivering 9.3 CFM at 90 PSI.

Product Expert Notes

This is Rolair's best-selling gas compressor for framing and roofing crews because the 9.3 CFM @ 90 PSI output keeps multiple nailers running. Match your nailer's CFM demand to the delivered rating before buying. Rolair notes cold-weather starting technique matters for gas belt-driven units; the atmospheric unloading system helps limit oil consumption over long service life.

Operate outdoors or in well-ventilated areas, follow the engine manual, and never disable safety relief valves or the low oil shutdown.

Add the Rolair 4090HK17 wheeled gas air compressor to your framing and roofing setup today.