HOUSING 4337473 - Caterpillar

3208 Truck Engine Model Views
3208 NA
Oil Filters (1), Fuel Filter & Priming Pump (2), Oil Level Gage (3), Thermostat Housing (4), Oil Filler (5)
Water Separator (6), Fuel Pump & Governor (7), PCV Valve (8)3208 T
Oil Filters (1), PCV Valve (2), Turbocharger (3), Fuel Filter & Priming Pump (4)
Water Separator (5), Oil Level Gage (6), Thermostat Housing (7), Water Pump (8), Oil Filler (9)3208 ATAAC
Oil Filters (1), Fuel Filter & Priming Pump (2), Crankcase Breather (3), Oil Filler (4)
Oil Level Gage (5), Fuel Pump & Governor (6), Thermostat Housing (7), Water Separator (8), Belt Tensioner Pulley (9)Specifications
The Caterpillar 3208 Truck Engine is a 636 cu. in. (10.4 L) displacement, 4.5 in. (114 mm) bore, 5.0 in. (127 mm) stroke, four stroke cycle, 8 cylinder 90° Vee design engine. The firing order is 1-2-7-3-4-5-6-8 and the direction of rotation is counterclockwise, as viewed from the flywheel. The engine is direct fuel injected and can either be naturally aspirated, turbocharger or turbocharged with Air-to-Air aftercooler. Engine Information
The engine is direct fuel injected and is naturally aspirated (NA) or equipped with a turbocharger (T) or an air-to-air aftercooler arrangement (ATAAC).A full range hydramechanical governor controls the fuel injection pump output to maintain the engine rpm selected by the operator.Individual injection pumps, one for each cylinder, meter and pump fuel under high pressure to an injection nozzle (valve) for each cylinder. Automatic timing advance provides the best fuel injection timing over the full range of engine speed.The cooling system consists of a belt driven centrifugal pump, two thermostats which regulate the engine coolant water temperature, an oil cooler and an OEM radiator, incorporating a shunt system.The engine lubricating oil, which is both cooled and filtered, is supplied by a gear-type pump. Bypass valves provide unrestricted flow of lubrication oil to the engine parts when oil viscosity is high, or if either the oil cooler or the oil filter elements should become plugged.Engine efficiency, efficiency of emission controls and engine performance depend on adherence to proper operation and maintenance recommendations, and the use of recommended fuels and lubrication oils.Follow the recommended Maintenance Management Schedule with emphasis on emission related components, air cleaner indicator, lubrication oil, oil filter, fuel and fuel filter maintenance found in this publication.Engine Identification
Caterpillar engines are identified with serial numbers, OT (fuel system settings) numbers and arrangement numbers. In some cases modification numbers are also used. These numbers are shown on the serial number plate mounted on the engine.Caterpillar dealers need all of these numbers to determine which components were included on the engine when it was assembled at the factory. This permits accurate identification of replacement part numbers.