ROLAIR 4090HMK103 Wheeled Gas Air Compressor - 4090HMK103-0001

ROLAIR 4090HMK103 Wheeled Gas Air Compressor -  4090HMK103-0001

The 163 cc (GX160) gas wheelbarrow air compressor has long been the top choice of framing and roofing contractors. In this class, the 4090HMK103 delivers 8.7 CFM @ 90 PSI. It incorporates an automatic idle-down for increased fuel efficiency and an atmospheric unloading system to prevent oil consumption.

Specifications

What Our Experts Think

• 5.5 HP Honda Engine – Provides reliable, long-lasting power for demanding tasks.
• Twin 4.5-Gallon Tanks – Ensures consistent air supply for continuous operation.
• Wheeled Design – Easily transportable with a rugged frame and durable tires.
• Oil-Lubricated Pump – Enhances efficiency and extends the compressor's lifespan.
• Gas-Powered – Perfect for job sites without electrical access.
• High CFM Output – Capable of running multiple pneumatic tools simultaneously.
• Heavy-Duty Build – Designed for professional use in tough environments.

Q&A

Q: What is the ROLAIR 4090HMK103 Wheeled Gas Air Compressor?
A: The ROLAIR 4090HMK103 is a gas-powered, wheeled air compressor designed for job site applications requiring high air output and mobility.

Q: What engine powers this compressor?
A: It features a Honda GX160 4.8 HP gas engine, providing reliable and efficient performance.

Q: What is the tank capacity and PSI rating?
A: This model includes twin 4.5-gallon air tanks and delivers a maximum pressure of 135 PSI.

Q: What is the CFM output?
A: It provides 9.3 CFM at 90 PSI, making it ideal for framing, roofing, and trim applications.

Q: Is it portable?
A: Yes, it has a wheelbarrow-style frame with a durable tire, making it easy to transport across job sites with rough terrain.

Maintenance Tips

• Drain Tank Daily – Prevent rust and moisture buildup by releasing condensation.
• Check & Change Oil – Regularly monitor and replace oil for smooth engine and pump performance.
• Inspect Air Filter – Clean or replace to ensure optimal airflow and efficiency.
• Check for Leaks – Tighten fittings and hoses to prevent air loss.
• Monitor Pressure Gauges – Ensure consistent pressure levels and detect irregular fluctuations.
• Inspect Engine & Fuel System – Follow Honda engine maintenance guidelines, checking fuel lines, spark plugs, and air intake.
• Lubricate Moving Parts – Keep belts and bearings properly lubricated to reduce wear.
• Store in a Dry, Clean Area – Protect from moisture and debris to prevent corrosion.