Four Crankshaft Rear Seals Are Available For Use On 3304 And 3306 Engines

3304 and 3306 Engines

There are four crankshaft rear seals available for use on 3304 and 3306 Engines. Two of the seals are used with a wear sleeve and the other two seals are not used with a wear sleeve. The chart that follows shows which crankshaft rear seals use a wear sleeve and which do not. Check the Parts Book to see which crankshaft seal is needed for your engine.

Special Instruction Form Number SMHS7100 is available for installation instructions on crankshaft seals and wear sleeves.

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