Turbo Oil Drain Hose Line compatible for Dodge Ram 2500 3500 5500 6.7L 2007-2010 Diesel
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Turbo Water Coolant Line compatible for Mercedes CL550 S500 CLS550 GL450 4.7L 2782002551
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Turbo Coolant Water Line compatible for Mercedes A250 B250 CLA250 M270 2.0 L 2702032702
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Engine Thermostat compatible for Audi A4 A5 A6 A7 Q5 Q7 compatible for VW Touareg V6 3.0L 06E121111AL
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Coolant Return Line compatible for Mercedes CLA-Class CLA250 M270 2.0L L4 2012-2019 Turbo
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Coolant Return Line compatible for BMW X1 sDrive xDrive 20i 28i E84 2.0L 2011- 11538663517
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Turbo Coolant Line compatible for Mercedes-Benz M278 M157 S550 S500 ML500 E500 GLE63 S63
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Turbo Water Coolant Pipe compatible for BMW 520i 528i xDrive Touring 2.0L N20B20 Feed Hose
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Turbocharger Coolant Feed Hose For Benz SL S E CL S550 CL550 S63 AMG 2782001400
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Turbo Right Coolant Hose Line compatible for Mercedes Benz 5.5L 4.7L S550 S63 SL550 SL63
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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.