Product Summary

Universal Fit, Single Fan Quantity, Pull Fan Flow Type

  • An industry exclusive solution for mounting SPAL's 500-watt brushless fan to nearly any radiator
  • Easily trimmable to fit most applications and offers full coverage on core sizes between 22.5" to 27.5" wide
  • The new SPAL brushless fan motors reach more than 82% electrical efficiency, resulting in high air-side performance at minimum electrical load
  • Fan motor with integrated electronics allows for PWM and analog input for continuous adjustment of fan speed
  • Shroud is injection-molded from a heat resistant space-age polymer, offering decades of performance and durability

Key Specs

MFG. Part #32-SP480

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  • Slim profile only needs 4 inches of mounting depth
  • Brushless motor technology provides more airflow
  • Curved blades provide lower operating sound levels
  • Direct mount to 1966-1982 GM cross flow "hat channel" radiators
  • Fan can be controlled via analog or digital PWM unit
  • Fully assembled unit includes temperature sensor and wiring harness
  • Shroud can be trimmed for different radiator widths
  • Fan provides 2,430 cfm of airflow with just 1-amp soft start
  • Fan soft starts at 175-degrees F and given full power at 195-degrees F

Cool Most Engines with a Slim, Easy to Fit Brushless Fan and Shroud Combo

It is not always an easy, cut-and-dry, mounting solution to add an automotive electric fan to your street rod or muscle car. Often engine swaps, accessory drive conversions, and extra thick radiators all add up to not much room for automotive cooling fans. Fitting an electric fan that will cool your engine properly is made much easier with the use of a narrow, DC brushless fan that is designed to work in conjunction with a shroud that provides full coverage of your radiator’s core.

Trim to Fit Installation

DeWitts®’ solution for mounting SPAL's 500-watt brushless fan to nearly any radiator, the included fan shroud is injection-molded from a heat resistant space-age polymer offering decades of performance and durability. The shroud is easily trimmable to fit most applications and offers full coverage on radiator core sizes between 22-1/2-inches to 27-1/2-inches wide simply by trimming the shroud’s ends on the molded-in cut lines.

The shroud is 18-1/2-inches tall and is a direct mount configuration, utilizing your 1966-1982 GM crossflow radiator’s “hat channel” found at the top and bottom of the radiator core. The mounting flanges of the shroud are ½-inch in height, and mounts to a hat channel height of 17-1/2-inches. Mounting this on a non-GM style radiator will require a bracket, flange, or lip to attach the shroud. Depth is only 4-inches for the assembled package. DeWitts includes all mounting hardware to secure the fan and shroud to your radiator.

Brushless Fan Technology for High Air Flow When Needed

SPAL brushless fans are the recognized industry leaders. The included SPAL brushless 500-watt 16-inch electric radiator fan features seven curved blades for efficiency and low noise. The SPAL fan uses a puller design that creates 2,430 cfm of air flow at a maximum fan speed of 2,800 rpm.

The 12V DC brushless cooling fan technology has really taken the cooling fan product category by storm, and rightfully so. Brushless cooling fans allow for higher output with lower power consumption. The fan’s efficiency also comes in a more compact package, allowing a brushless fan to possibly fit where a standard brushed motor DC cooling fan may not have.

A brushless radiator fan is also easily controlled with pulse width modulated (PDW) controllers, which allows soft fan starting to reduce charging system spikes and variable fan speeds dependent upon cooling system needs, whereas a brushed fan is simply an on or off arrangement that creates a high amp load spike upon start up.

The SPAL automotive 500-watt unit used by DeWitts in this package reaches more than 82 percent electrical efficiency, making this fan one of the most efficient on the market. The result is high air-side performance at minimum electrical load. SBL motors are fully sealed to be IP68 and IP6K9K compliant and can operate in the harshest of environments.



MFG. Part #32-SP480
Fan QuantitySingle
Fan Diameter16 Inch
Maximum Fan CFM2430 CFM
Maximum Fan RPM2800 RPM
Fan Flow TypePull
Blade TypeNon-Flex
Blade StyleCurved
Blade Count7-blade
Blade MaterialPlastic
Blade ColorBlack
Hub MaterialPlastic
Hub ColorBlack
Starting Amps1 amp
Running Amps33 amps
Voltage12 volts
Outside Diameter17"
Overall Length27.5"
Overall Height18.64"
Overall Thickness4.015"
Material Thickness.120"
Minimum Width22.50"
Shroud IncludedYes
Hardware IncludedYes
Sold in QuantityKit