HOUSING AS-FLYWHEEL 4381109 - Caterpillar

In addition, several different turbochargers are used on these engines. Different turbocharger wheels and housings are used with different horsepower ratings to obtain the best fuel efficiency and lowest exhaust emissions.
The 3208 Engines equipped with turbochargers, use the Sleeve Metering Fuel System (SMFS). This fuel system is used in different configurations for different applications, horsepower ranges and emission requirements.
Several different camshaft and lifter arrangements can also be ordered for these 3208 Engines equipped with turbochargers. See the article in this issue of Service Magazine for additional information on these arrangements.
All of the above reasons show the importance of using the correct parts book, engine arrangement and engine serial number when ordering replacement parts for 3208 Engines equipped with turbochargers.