Engine Thermostat Housing compatible for Kia Optima Sorento compatible for Hyundai Sonata Tucson
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Boat Engine Pump compatible for Mercury 350 Mag MPI 863631T1 Direct Replacement
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Engine Auxiliary Water Pump compatible for Mercedes-Benz AMG GLE/GLS 2015-2018 2118350264
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Compatible for Lincoln VOLVO S60 S80 V70 compatible for Transit Cooling Control Module 2Fan ECU
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Temperature Control Thermostat compatible for BMW 328i GT 428i 528i 2014-16 34788822-226
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Compatible for Lincoln VOLVO S60 S80 V70 compatible for Transit Cooling Control Module 2Fan ECU
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Engine Oil Cooler Line Pipe compatible for Lexus Toyota 3.5L 07-19 compatible for Sienna Venza RX450h
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902-3045 Cooling Housing Assembly compatible for Ram 2500-5500 6.4L V8 2014-2022 902-3045
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New CVT Trans Oil Cooler compatible for Nissan Sentra 2013-2016 Versa 2012-2019 Aluminum
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Water Pump Assembly compatible for Saturn LS LS1 LW1 2000 12630084 CP5092 12591894 1307350
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Coolant Expansion Tank w/ Sensor compatible for Mercedes-Benz W164 GL ML GL320 1645000049
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UpperLower Radiator Coolant Hose Set 2PCS compatible for Chevy Silverado 1500/2500/3500
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Engine Coolant Pump compatible for Ford E-350 E-450 Super Duty 6.8L V10 2007-2019 AW6144
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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.