2S7309 Pre-Combustion Chamber Gasket

2S7309 is a pre-combustion chamber gasket for Caterpillar equipment, including wheel-type loaders, wheeled tractor-scrapers, truck engines, industrial engines, and ship equipment listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a gasket used in the pre-combustion chamber assembly. The equipment brand covered by the supplied application data is Caterpillar. The fitment information is organized by equipment type because the same gasket reference is listed for several machine and engine applications.

Fitment

• Wheel-type loaders: Caterpillar 980, 992, and 992B.
• Wheeled tractor-scrapers: Caterpillar 621.
• Truck engine: Caterpillar 1676.
• Industrial engines: Caterpillar D348, D379, D379B, D398, D398B, and D399.
• Ship equipment: Caterpillar D336, D348, D379A, D379B, D398A, D398B, and D399.

For machine identification, the model designation and equipment type should be checked against the application list above. The supplied data does not specify a machine serial-number range, production year, engine arrangement number, or installation position beyond the pre-combustion chamber application.

Cross-reference numbers

• 2S7309 — product and equipment-manufacturer reference format.
• 2S-7309 — hyphenated reference format used for the same part number.

The references 2S7309 and 2S-7309 represent the same numerical identification with different formatting. When comparing catalog records or service documentation, both formats should be checked. No additional supplier reference numbers are provided in the available product data.

Specifications

The listed dimensions and weight are the recorded product data for part number 2S7309. The supplied information does not identify the gasket material, bolt-hole pattern, inner or outer diameter, temperature rating, sealing compound, or additional components included with the part. The item is therefore described only by the available part-number, application, and dimensional data.