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What Coolant Should I Use With An Aluminum Radiator?
What Coolant Should I Use With An Aluminum Radiator?
Do Aluminum Radiators Need Special Coolant? The key to maximizing the life of an aluminum radiator is not so much the radiator coolant brand as it is the water type. All coolants sold today will protect alu...
Frequently Asked Questions
Frequently Asked Questions
Is your radiator a Direct Fit?Yes! Every DeWitts Aluminum radiator is designed to fit the listed application without any modifications to your car. In fact, we hold the official U.S. trademark for the term D...
What Pressure Radiator Cap Rating Should I Use?
What Pressure Radiator Cap Rating Should I Use?
What Radiator Cap Pressure Should I Use? We are asked this question daily and most people misunderstand what the pressure cap does. The cap’s pressure rating has nothing to do with regulating your engine’s c...
DeWitts™ Direct Fit® Aluminum Radiators
DEWITTS RADIATOR ACHIEVES ISO 9001:2015 CERTIFICATION
January 10, 2020  Howell, MI - DeWitts Radiator is proud to announce the achievement of ISO 9001:2015 certification at its Howell, Michigan location. ISO is one of the most rigorous and well-regarded standar...
What is a Serpentine Cooling Fin
What is a Serpentine Cooling Fin
Automotive radiators use a thin foil material, rolled formed into a corrugated pattern, to transfer heat from the cooling tubes to the air. During the roll forming process small windows or louvers are stampe...
DeWitts™ Direct Fit® Aluminum Radiators
C5 Corvette Transmission Fittings
In 2001, GM  changed the transmission cooler mid model year. At this time, the connection fitting switched from the old flare tube and nut to a newer metric quick connect fitting. One way to identify which m...
DeWitts™ Direct Fit® Aluminum Radiators
Are Extruded Cooling Tubes Better
One radiator company is now touting a “revolutionary advancement in cooling technology”. A bold statement like this deserves to be investigated...  What is this big break through? it is Extruded Cooling Tub...
DeWitts™ Direct Fit® Aluminum Radiators
Why Do Aluminum Radiators Cool Better Than Copper?
Copper is actually a better conductor of heat than aluminum. The problem is a copper radiator is not ALL copper. The tubes and fin are copper however they are bonded together with lead, which has horrible he...
DeWitts™ Direct Fit® Aluminum Radiators
WHAT IS A DOUBLE PASS RADIATOR?
Many companies offer radiators configured as a double-pass or triple-pass design and the name can be a little misleading. On the surface, a double-pass radiator sounds like the fluid goes through the radiato...
Are Three Row Aluminum Radiators Better Than Two Row?
Are Three Row Aluminum Radiators Better Than Two Row?
In the old days of copper and brass radiators this was true. More rows meant more surface area in contact with the fin and consequently a higher heat rejection. So a 3 row was better than a two row and so on...
DeWitts™ Direct Fit® Aluminum Radiators
What is a four core radiator?
Truth be told, there is no such thing. The term “four core” has been misused for decades and accepted for generations. One reason is that very few people know how a radiator works and even less people know h...