4S7805 Seal Assembly for Caterpillar Water Pumps

4S7805 is a mechanical seal assembly used in water pump applications on Caterpillar equipment. The compatible equipment listed for this part includes Caterpillar 951B and 955K track loaders and the Caterpillar D4D track-type tractor.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The product is identified by SKU 4S7805 and is supplied as a seal assembly for the applicable water pump configuration.

Fitment

• Caterpillar 951B Track Loader
• Caterpillar 955K Track Loader
• Caterpillar D4D Track-Type Tractor

The equipment brand associated with the listed applications is Caterpillar. The model references identify the machine series in which the 4S7805 seal assembly is used; the available data does not specify a separate machine position or water pump subassembly.

Cross-reference numbers

4S7805 and 4S-7805 are the two number formats provided for the same seal assembly. No additional supplier or equipment manufacturer reference numbers are specified in the available product data.

Specifications

The stated dimensions are 8.89 cm in length, 15.24 cm in width, and 1.27 cm in depth. The listed weight is 0.2 lb. These measurements describe the product data supplied for the seal assembly and do not identify an installation orientation, shaft size, housing size, thread specification, or individual components included separately.

Before installation, the part number and machine model should be checked against the equipment parts documentation for the specific Caterpillar 951B, 955K, or D4D application. The available data confirms the seal assembly reference and listed model fitment but does not provide further dimensional or material specifications.