Specifications

The cooling system shall utilize a charge air cooler to radiator serial flow package that provides the
maximum cooling capacity for the specified engine as well as serviceability. The main components
shall include a surge tank, an air to air charge air cooler bolted to the front of the radiator, recirculation
shields, a shroud, a fan, and required tubing.
The radiator shall be a down-flow design constructed with aluminum cores, plastic end tanks, and a steel
frame. The radiator shall be equipped with a drain cock to drain the coolant for serviceability.
The cooling system shall include a one piece injection molded polymer eleven (11) blade fan with a
fiberglass fan shroud.
The cooling system shall be equipped with a surge tank that is capable of removing entrained air from
the system. The surge tank shall be equipped with a low coolant probe and sight glass to monitor the
level of the coolant. The surge tank shall have a dual seal cap that meets the engine manufacturer's
pressure requirements, and allows for expansion and recovery of coolant into a separate integral
expansion chamber.
All radiator tubes shall be formed from aluminized steel tubing. Recirculation shields shall be installed
where required to prevent heated air from reentering the cooling package and affecting performance.
The charge air cooler shall be a cross-flow design constructed completely of aluminum with cast tanks.
All charge air cooler tubes shall be formed from aluminized steel tubing and installed with silicone
hump hoses and stainless steel “constant torque” style clamps meeting the engine manufacturer’s
requirements.
ENGINE COOLING SYSTEM PROTECTION
The engine cooling system shall include a recirculation shield designed to act as a light duty skid plate
below the radiator to provide additional protection for the engine cooling system from light impacts,
stones, and road debris.
ENGINE COOLANT
The cooling package shall include Extended Life Coolant (ELC). The use of ELC provides longer
intervals between coolant changes over standard coolants providing improved performance. The
coolant shall contain a 50/50 mix of ethylene glycol and de-ionized water to keep the coolant from
freezing to a temperature of -34 degrees Fahrenheit.
Proposals offering supplemental coolant additives (SCA) shall not be considered, as this is part of the
extended life coolant makeup.
ELECTRONIC COOLANT LEVEL INDICATOR