Product Summary

Single Pass Radiator Style, Aluminum, 2 Row Quantity

  • DeWitts® radiators are 100% engineered and manufactured in the USA, backed with a lifetime warranty
  • Direct Fit® assures easy installation with SPAL dual (2800 CFM) 11" fans, boosting air flow up to 40% from stock
  • Designed for all automatic transmission C6 and C6 Z06 dry sump engines (excludes 2012 Z07)
  • Two-row, 1" wide tube core doubles factory cooling capacity, adding an additional gallon of coolant, and increases efficiency 25% over stock
  • Press-formed and fully welded end tanks replace factory gasket-sealed plastic end tanks, making this unit the best Corvette radiator for track days

Key Specs

MFG. Part #32-4139105A
Radiator StyleSingle Pass
Radiator Flow DirectionCrossflow
Material TypeAluminum

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The best of both worlds! Combine the DeWitts Direct Fit® radiator with SPAL dual 11" (2800 CFM) electric fans.  This “Direct Fit®” radiator features two rows of 1” tubes, which doubles the cooling capacity of a factory single row. Our exclusive “press formed” end tanks are hand TIG-welded by expert craftsman, eliminating the factory plastic tanks.  SPAL dual fan package boosts air flow up 40% from stock.

  • Direct Fit® with no modification
  • Fits C6 automatic transmisison and Z06
  • Epoxy free, aluminum, dual row core, 1" tubes
  • SPAL dual 11" fans 2800 cfm
  • Billet aluminum end tanks with no fabrication seams
  • Passenger side 7-plate transmission cooler
  • Factory quick connect transmission fittings included
  • 100% assembled, brazed, and welded in USA

The superior quality of a DeWitts® radiator begins with a manufacturing process that is controlled 100% in house. Every core is assembled and brazed in Howell, MI to ensure excellence throughout the entire build. DeWitts® is the only USA aftermarket radiator company to own an aluminum Nocolok® brazing furnace which allows for production of a superior, epoxy free, aluminum core. DeWitts® radiators are assembled with press formed end tanks which eliminate fabrication seams and potential leak points of common box tanks while providing an original equipment look for your classic car. 



MFG. Part #32-4139105A
Radiator StyleSingle Pass
Radiator Flow DirectionCrossflow
Material TypeAluminum
Inlet LocationUpper driver side
Outlet LocationLower passenger side
Row Quantity2
Tube Size1.00"
Overall Width Range29.00" to 29.99"
Overall Width29"
Overall Height Range17.00" to 17.99"
Overall Height17"
Overall Thickness3.25"
Core Width Range23.00" to 23.99"
Core Width23.5"
Core Height Range17.00" to 17.99"
Core Height17"
Core Thickness2.25"
Cooling FanDual
Transmission CoolerYes
Shroud IncludedYes
Inlet Size1.25
Outlet Size1.25
Amperage26 amps
Fan IncludedYes
Radiator Cap IncludedNo
Fan Diameter11 Inch
Blade MaterialPlastic
Shroud ColorNatural
Shroud MaterialAluminum
CFM Range2,700-2,799 CFM
NotesElectric fan has 26.0 amp rating.
Sold in QuantityEach