The Derale Powerpack pairs two high output 12 inch RAD electric fans on an aluminum shroud sized to fit common radiator cores for primary engine cooling. The two fans move 4000 CFM combined through a patented ultra quiet skewed blade design driven by 300 watt motors. The raw aluminum shroud can be polished, painted, or anodized, and adjustable brackets provide multiple mounting options for a precise fit. The fans are for puller (engine side) installation.
Specifications:
- Type: Dual electric RAD fan and aluminum shroud powerpack
- Fan configuration: Dual 12 in fans
- Airflow: 2000 CFM per fan, 4000 CFM total
- Amp draw: 24.8 A per fan
- Motors: 300 watt high output
- Shroud: Raw aluminum; polish, paint, or anodize
- Overall dimensions: 25-5/8 in W x 15-1/8 in H x 4 in D (fan depth 2-3/4 in)
- Orientation: Puller (engine side) only
- Included: Adjustable mounting brackets and complete mounting hardware
- Part number: 16825
FAQ
What is the Derale 16825 Powerpack?
A complete dual fan cooling assembly with two high output 12 inch RAD fans on one aluminum shroud for primary engine cooling.
How much air does it move?
4000 CFM total, about 2000 CFM per fan, driven by 300 watt high output motors.
Is it a puller or pusher?
It is a puller fan for engine side installation only.
What are the dimensions?
The shroud measures 25-5/8 in wide by 15-1/8 in tall by 4 in deep overall. Confirm the radiator core will accept the shroud footprint.

