SKU: PRM13211
MPN: 13211
The Maxi-Cool Jr Coil/Electric Fan Assembly -6AN 12 1/2in by PERMA-COOL is a compact yet effective cooling solution engineered for street rods, classic muscle cars, and modified vehicles where under-hood space is premium. This unit combines a small-frame radiator cooling fan with integrated coil design, specifically sized to fit tight engine bays while delivering consistent thermal management during high-demand driving conditions. Whether you're running a carbureted build, naturally aspirated engine, or modest horsepower increase, this assembly addresses the cooling demands that stock fans simply cannot meet in modern traffic or track environments.
The -6AN fitting designation indicates compatibility with -6 AN hose connections, a standard in custom cooling circuits and high-flow radiator setups. The 12 1/2-inch length provides optimal blade sweep and airflow volume without the bulk of oversized units, making it ideal for vehicles with limited radiator mounting depth. PERMA-COOL's coil/electric fan integration ensures reliable thermal cycling—the electric motor operates independently of engine speed, providing cooling precisely when coolant temperature rises, not when the engine needs maximum horsepower. This design reduces parasitic drag compared to mechanical belt-driven fans and improves efficiency in stop-and-go driving where thermostatic control matters most.
Mechanics and hot rod builders trust PERMA-COOL assemblies for custom cooling loops that demand precision fitment and dependable year-round performance. This unit suits street rod applications, custom trucks, restorations, and modified daily drivers running upgraded engine packages. Installation requires basic plumbing knowledge—verify your radiator outlet and inlet port sizes match -6AN fittings, and ensure adequate electrical access for the fan motor circuit. Proper installation includes thermostat calibration and fan relay tuning to prevent over-cooling at cruise speeds and unnecessary motor cycling, which extends component lifespan and maintains optimal engine operating temperature.
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