3N4863 Oil Seal for Caterpillar Equipment

3N4863 is an oil seal used in Caterpillar engines, generators, engine and generator kits, industrial engine applications, and ship equipment. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the unhyphenated SKU 3N4863 and the hyphenated part number format 3N-4863. The fitment information below is organized by the equipment application listed for this oil seal.

Fitment

• Engine and generator kits: Caterpillar 3406, 3406B, 3406C, and SR4.
• Ship equipment: Caterpillar 3406, 3406B, 3408, 3408B, 3412, D343, D353C, D353D, and D353E.
• Industrial engines: Caterpillar 3406, 3406B, 3406C, 3406E, 3412, and G3406.
• Generators: Caterpillar SR4.

The listed Caterpillar applications include several 3406 engine versions, the 3408 and 3412 engine families, D-series marine engine models, the G3406 industrial engine, and SR4 generator equipment. A model appearing in more than one application group is retained in each group where the source fitment data identifies it.

Cross-reference numbers

• 3N4863
• 3N-4863

3N4863 and 3N-4863 are two written formats for the same identifying part number. The hyphenated format is commonly used in equipment parts catalogs, while the product SKU is shown without the hyphen.

Specifications

The dimensions and weight shown above are the recorded product measurements. The available data does not specify the sealing material, shaft diameter, housing diameter, lip configuration, or installation position within each individual engine or generator model. These parameters are therefore not listed as confirmed specifications.