7N3171 Beaded Gasket for Caterpillar Equipment

7N3171 is a beaded gasket used in Caterpillar industrial engines, generator sets, and the listed court equipment applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed under the Caterpillar catalog number 7N-3171 and is supplied as a gasket for the equipment and engine models specified below. The available fitment data covers several Caterpillar engine families and generator-set configurations.

Fitment

The 7N3171 gasket is identified for the following Caterpillar equipment and engine applications:

• Engine – Industrial: Caterpillar 3412
• Engine – Industrial: Caterpillar D343
• Engine – Industrial: Caterpillar D353C
• Engine – Industrial: Caterpillar D353D
• Engine – Industrial: Caterpillar D353E
• Engine – Industrial: Caterpillar D379
• Engine – Industrial: Caterpillar D379B
• Engine – Industrial: Caterpillar D398
• Engine – Industrial: Caterpillar D398B
• Engine – Industrial: Caterpillar D399
• Court equipment: Caterpillar D353C
• Court equipment: Caterpillar D353D
• Court equipment: Caterpillar D353E
• Engine – Generator Set: Caterpillar 3412
• Engine – Generator Set: Caterpillar 3412C
• Engine – Generator Set: Caterpillar D379B
• Engine – Generator Set: Caterpillar D398B
• Engine – Generator Set: Caterpillar D399
• Engine – Generator Set: Caterpillar SR4

Fitment should be checked against the engine arrangement, machine configuration, and the number stamped or listed for the gasket location before installation. The model names above are grouped by the equipment application provided for catalog number 7N-3171.

Cross-reference numbers

• 7N3171
• 7N-3171

7N3171 is the SKU format without the separator, while 7N-3171 is the catalog-number format shown in the equipment fitment data. Both formats identify the same gasket number.

Specifications

The available product data specifies the gasket dimensions and weight shown above. No additional information about the gasket material, sealing location, thread specifications, or installation hardware is provided.