2959691 Piston for Caterpillar Equipment

Part 2959691 is a piston for hydraulic barrels and pistons used in Caterpillar equipment. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The listed application includes Caterpillar excavators, mobile hydraulic power units, shovel loggers and wheeled excavators. Compatibility depends on the machine model and configuration, so the model designation should be checked before installation.

Fitment

• Caterpillar excavators: 330D, 330D FM, 330D L, 330D LN, 330D MH, 345C, 345C L, 345C MH.
• Caterpillar mobile hydraulic power units: 330D, 330D L, 345C L.
• Caterpillar shovel logger: 345C.
• Caterpillar wheeled excavators: M330D, W345C MH.

For excavator applications, the compatible model designations are Caterpillar 330D and 345C variants, including the L, LN, FM, MH and standard configurations listed above. The 330D and 345C designations also appear in the mobile hydraulic power unit applications, with the 330D, 330D L and 345C L configurations specified. The shovel logger application is listed for Caterpillar 345C, while the wheeled excavator applications are listed as M330D and W345C MH.

The part is catalogued in the Hydraulic Barrels & Pistons category. The fitment data identifies the equipment model and machine type; it does not specify a separate installation position or additional components included with the piston.

Specifications

The stated dimensions are 12.7 cm in length, 12.7 cm in width and 10.2 cm in depth. The listed weight is 5.61 lb. No material, thread specification, seal information, bore size, stroke specification or kit contents are provided for this part.