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4AN Steam compatible for Vent Hose Kit For LS family of engines LS1 LS2 LS6 LM7 Stainless Steel
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Engine Water Pump compatible for Toyota Highlander RAV4 V6 2006-20163.5L 1610039455
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Engine Coolant Inverter Electric Water Pump Assembly compatible for Toyota Prius Hybrid
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Water Pump compatible for Cadillac Escalade Chevrolet Silverado GMC Sierra 2014-20 12683012
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Front Water Pump compatible for Ford Ranger/Aerostar compatible for Mazda B3000 3.0L V6 1995-08 131-2207
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Engine Coolant Thermostat Housing compatible for Mercedes-Benz Metris 2016-2019 A2742000615
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Engine Oil Cooler Filter Housing compatible for Mercedes C250 SLK250 2012-2015 2711801410
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9pcs compatible for Honda Civic D15 D16 EG EK 1992-2000 Silicone Radiator Coolant Hose Kit
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Cooling Fan Clutch compatible for Nissan Pathfinder/Xterra 2005-2012 21082-EA200 32658231
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For K Series K20 K24 engines Radiator Hose K Swap Swivel Neck Thermostat Housing
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Water Pump Coolant Assembly Kit compatible for John Deere 35C 8981262313 Belt Drive System
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Fan Clutch Assembly compatible for Chevy Avalanche/Compatible for Silverado/Suburban 22136731 215107
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Fan Clutch Assembly compatible for Chevy Avalanche/Compatible for Silverado/Suburban 22136731 215107
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.