3S2891 Pre-Combustion Chamber Gasket

The 3S2891 pre-combustion chamber gasket is used in Caterpillar equipment and engines listed below. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

This gasket is listed for Caterpillar industrial, marine, vehicular, and machine applications equipped with D346, D348, or D349 engines, as well as for the specified tractor, truck, and wheel loader models. The fitment information identifies the equipment type together with the applicable engine or model designation.

Fitment

• Caterpillar industrial engine D346
• Caterpillar industrial engine D348
• Caterpillar industrial engine D349
• Caterpillar marine engine D348
• Caterpillar marine engine D349
• Caterpillar track-type tractor D10
• Caterpillar tractor 772
• Caterpillar truck 773
• Caterpillar truck 777
• Caterpillar vehicular engine D346
• Caterpillar vehicular engine D348
• Caterpillar vehicular engine D349
• Caterpillar wheel loader 992
• Caterpillar wheel tractor 650B

The engine designations D346, D348, and D349 appear in the listed industrial, marine, and vehicular applications. The machine fitment includes the D10 track-type tractor, 772 tractor, 773 and 777 trucks, 992 wheel loader, and 650B wheel tractor. Equipment identification should be checked against the machine documentation and the existing gasket before installation.

Specifications

The listed dimensions and weight are product data for the 3S2891 gasket. The supplied part is identified by SKU 3S2891 and is intended for the pre-combustion chamber gasket application on the Caterpillar equipment and engines specified in the fitment list.