MaxxAir Maxxfan Plus 4002K

Last updated: November 2, 2026

MaxxAir Maxxfan Plus 4002K
3.1/5#9 of 14 in open lid RV vent fans
3.1

For buyers who find it cheaper than the 10 speed Plus 4000K at the time of purchase; otherwise the 4000K does the same job with finer speed control.

  • 900 CFMAirflow
  • 4Speeds
  • NoRain cover
Check price at Amazon$271.21

Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Blows in or out and runs on a thermostat
  • Same 12 in blade and airflow claim as the 10 speed Plus
  • Takes a Fanmate cover later if you want to run it in rain
Cons
  • Only four speeds yet priced above the 10 speed 4000K on Amazon
  • Lid must be closed by hand before rain
  • No remote

The MaxxAir MaxxFan Plus family

Every MaxxAir MaxxFan Plus model we rank, smallest first. Ratings compare each against its own lid.

ModelAirflowRatingPrice
MaxxAir Maxxfan Plus 4002K (this one)900 CFM3.1/5$271.21
MaxxAir Maxxfan Plus 4000K900 CFM3.5/5$253.31
MaxxAir Maxxfan Plus 4500K900 CFM3.8/5$338.09

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its lid. How we rank explains each one.

Specifications

Model number00-04002K
Fan
Airflow900 CFM
Speeds4
Blade12 in
ReversibleYes
Lid and controls
Rain coverNo
Powered lidNo
Rain sensorNo
ThermostatYes
RemoteNo
LightNo
Fit and build
Roof thickness2 to 6.5 in
Warranty2 years

Alternatives in this lid

Compare

Compare the MaxxAir Maxxfan Plus 4002K with any other RV roof vent fan →

More from MaxxAir: every MaxxAir product ranked.