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Review on 🌬️ The Ultimate Transmission Cooling Solution: Hayden Automotive 677 Rapid-Cool Plate and Fin Transmission Cooler by Nathan Skipper

Revainrating 4 out of 5

Radiator Only

Installed on Subaru Legacy 2013 with CVT. The cooler has 3/8" connections but comes with 11/32" hose. What's the point? A narrower hose restricts fluid flow and is difficult to fit into 3/8" fittings. I ended up spending another $12 on a 4 foot hose. I wouldn't trust the included plastic mounting straps. A/C condenser and/or radiator vents? Play it safe and use separate metal mounting brackets. The kit comes with 4 clamps about 1" in diameter, but the clamps are a bit narrow. I figured they weren't putting enough consistent pressure on enough hose surface, so I bought new clamps that were larger than the standard width. Please note that this is a REGULAR radiator and is not intended to be fitted to any specific vehicle. Unless you bypass the radiator radiator entirely (which is NOT recommended for a radiator of this size) and connect directly to the two 3/8" transmission coolant lines, you will likely need to purchase some type of adapter/connector. I ended up with a 3/8" barbed brass connector with a double ended to connect the coolant return line to the inlet hose to the radiator radiator. While the radiator comes with caps on each connector to keep debris out. I highly recommend clean compressed air Use to blow out both ends of the coolant and hoses before connecting to the machine.

Pros
  • Excellent Price
Cons
  • Appearance