Transmission Oil Cooler
E100184.3
Cooler, Transmission Oil, GenV-LT4, 6.2, 5.3
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Cooler, Transmission Oil – A heat exchanger that cools the automatic transmission fluid (ATF).
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Gen V – Refers to GM’s fifth-generation small-block V8 engine family.
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LT4 6.2 – The supercharged 6.2L Gen V engine (used in high-performance applications).
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5.3 – The naturally aspirated 5.3L Gen V V8.
This cooler’s job is to:
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Pull heat out of the transmission fluid
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Keep the transmission operating in its ideal temperature range
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Prevent fluid breakdown, clutch wear, and premature transmission failure—especially under load (towing, surfing, long pulls, or high-RPM use)
In marine a transmission oil cooler is critical because:
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Boats run under sustained load far longer than cars
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Heat builds quickly in the transmission
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Cooler ATF = longer transmission life and more consistent performance
