Do you have one of these for an Ice Bear Maddog pmz150-21?
We are unfortunately not a direct dealer for that brand so are unable to guarantee compatibility. This CDI might work on your unit, but we would recommend checking the connector style and shape to ensure it will fit. This connector is a 2+4 square connector. If you need a 2+4 rounded connector, please take a look at item G07-1647, found here: https://www.monsterscooterparts.com/off-road-atv-parts/atv-categories/cdi-ignitor-off-road/ac-high-performance-cdi-module-ignitor-for-50cc-90cc-110cc-125cc-150cc-gas-scooters-atvs-6-pin-rounded-connector-orange.html
Additionally, please note that these CDIs are AC. To determine if your unit requires an AC or DC CDI, try turning on your headlights. If your headlights turn on with key, it is a DC system. If your headlights turn on with engine, it is an AC system.