2N5291 Gasket for Caterpillar

The 2N5291 gasket is a flat gasket used in Caterpillar industrial engines, ship equipment, and engine-generator sets. It is fitted to Caterpillar equipment using the 3304, 3304B, 3306, 3306B, D330C, D333C, and SR4 engine or generator configurations listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed under the Beaded Gaskets category. The available specifications identify it as a non-metallic gasket made from fiber and rubber, with a 0.03-inch thickness and a hole pattern consisting of three smaller holes and one larger hole.

Fitment

• Caterpillar industrial engines: 3304, 3304B, 3306, 3306B, D330C, D333C
• Caterpillar ship equipment: 3304, 3306, D330C, D333C
• Caterpillar engine-generator sets: 3304, 3304B, 3306B, SR4

Fitment is specified by the equipment application and model designation. The industrial-engine list includes both 3304 and 3306 engine versions, while the ship-equipment and engine-generator-set applications have separate model combinations. Confirm the equipment model and the existing gasket number before installation.

Cross-reference numbers

• Equipment manufacturer number: 2N-5291
• Number without separator: 2N5291

2N5291 and 2N-5291 identify the same gasket reference in different number formats. The SKU for this product is 2N5291.

Specifications

The listed dimensions are 10.5 cm in length, 9 cm in width, and 0.08 cm in depth. The hole pattern specification is given separately from the overall dimensions: three holes have a 0.41-inch size, and one hole has a 1.91-inch size. The material and thickness information apply to the gasket as supplied.