Kenworth Transmission Oil Coolers

Common signs include overheating warning lights, transmission slipping, discolored or burnt-smelling fluid, and visible leaks or damage on the cooler itself. If your truck frequently runs hot under load or you notice erratic shifting, it's worth inspecting the cooler for clogs, corrosion, or physical damage.

Yes, quality aftermarket coolers, such as our ICEBOX replacement units, are engineered to match OEM fit, form, and function. They're designed to bolt directly into place without modification while meeting or exceeding original cooling capacity and durability standards.

Most transmission oil coolers use aluminum cores and tanks for efficient heat transfer and corrosion resistance, though some heavy-duty applications use copper-brass construction. Aluminum designs are lighter and common in modern trucks, balancing durability with weight savings.

Inspect the cooler and its lines during routine transmission service intervals, typically every 25,000-50,000 miles, or sooner if operating in severe-duty conditions. Replacement is generally needed only if damage, leaks, or internal blockage is found, rather than on a fixed schedule.

Yes. A failing cooler can lead to insufficient heat dissipation, causing the transmission fluid to overheat and break down. This accelerates wear on gears, clutches, and seals, potentially resulting in costly transmission failure if not addressed promptly.

Yes, our catalog includes cooling components compatible with a wide range of commercial truck, construction, and industrial equipment manufacturers, so we can support your entire fleet's cooling system needs beyond just Kenworth models.