Cooling Fan compatible for Lexus RX350 Base/F Sport/RX350L 2016-2022 163610P400 163630P310
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600W Cooling Fan compatible for BMW 528i/530i/535i/640 09-15 17428509741 17427599493 3 Pins
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Cooling Fan compatible for Audi TT 2000-2004 compatible for VW Clasico/Jetta/Compatible for Golf 1999-2014 1J0121205B
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Engine Cooling Radiator compatible for Ford F250 Super Duty 5.4L 1999-2004 CU2170
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Engine Radiator Cooling Fan compatible for BMW X3 2.5i/3.0i/3.0si 2004-2010 17113442089
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Cooling Fan compatible for GMC Terrain 2.0L 2017-2018 compatible for Chevy Equinox 2018-2019 84221606
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Engine Water Pump compatible for Ford C-Max 2013-2018 compatible for Ford Fusion 2014-2020 DS7Z8C419D
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600W Cooling Fan Compatible for Benz C180/C200/C250/C300 2014-2017 0999061800 0999061100
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1-Row Engine Radiator compatible for Kia Telluride 2020-2023 RAD25310S9000 Direct Fit
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Radiator Cooling Fan Assembly 3 Pins compatible for BMW E83 X3 3.0si xDrive30i 17113442089
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Coolant ThermostatElectric Water Pump compatible for BMW X1 X3 X4 320i 328i 11517597715
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Cooling 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.