Cooling System Upgrade Kit compatible for Jaguar Compatible for Land Rover 3.0L V6 Supercharged Engine
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Cooling Fan compatible for Mercedes-Benz G55/G550/G63/G65 2013-2018 A4635000293 4635000293
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Electric Water Pump compatible for BMW E70 X5 3.0si 30i xDrive30i 2007 - 2010 11517546996
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Cooling Fan w/ Brushless Motor compatible for Buick Envision L4 2.0L 2021-2023 84897503
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Water Pump compatible for Caterpillar Engine 3406E compatible for CAT C15 10R0483 1354925 6I3890
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Aluminum Core Radiator compatible for Dodge Ram 2500/3500 Diesel 2003-09 CU2711
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Water Pump compatible for Caterpillar Engine 3406E compatible for CAT C15 10R0483 1354925 6I3890
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Center Radiator Assembly compatible for Bentley Continental GT/GTC 12-16 3W3853653A
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Radiator Cooling Fan Black compatible for BMW 525i 525xi 528i 528xi 645Ci 750i 750Li
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Radiator Cooling Fan Assembly compatible for Chevrolet Corvette 2014-2019 8448669784128343
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Radiator Cooling Fan compatible for Mercedes Benz GL320/GL450/ML320/ML550 2007-2009
1 OfferCooling System: The Key to Towing in Summer
Written by the PickupChain team · Last reviewed October 17, 2026
Towing, hauling and slow off-road driving all add heat. A healthy cooling system keeps the engine and transmission in a safe range. Signs of trouble are a temperature gauge that climbs on hills, coolant smell, visible leaks or white residue at hose connections.
Radiators, water pumps and thermostats wear out over time. On high-mileage trucks it often makes sense to replace the thermostat, hoses and coolant together when one part fails.
If you tow regularly, an auxiliary transmission cooler is one of the best upgrades. Heat is the main cause of automatic transmission failure, and a larger cooler lowers fluid temperature significantly.
Frequently Asked Questions
+How often should I change coolant?
Most modern long-life coolants last 100,000 miles or 5 years or more, but check your owner's manual. Use the coolant type specified for your engine, as mixing types can cause deposits.
+Do I need a transmission cooler for towing?
Many trucks with a factory tow package already have one. If yours does not, or if you tow heavy trailers in hot climates or mountains, an auxiliary cooler is a worthwhile upgrade.
+Why is my truck overheating only when towing?
Common causes are a partially clogged radiator, a weak fan clutch or electric fan, low coolant or a failing water pump. Check these before blaming the engine.