4242921 Cylinder Head for Caterpillar C15

4242921 is a cylinder head for C15 engine applications installed in Caterpillar equipment. The part is listed for Caterpillar excavators and a Caterpillar mobile hydraulic power unit in the equipment configurations specified below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part number identifies a cylinder head used with the C15 application. The available fitment data covers several Caterpillar 365B, 365C, and 385B/385C excavator configurations, as well as the 365C L mobile hydraulic power unit. Use the complete machine model designation when checking compatibility, especially where the L or II suffix is included.

Fitment

• Caterpillar 365B excavator
• Caterpillar 365B II excavator
• Caterpillar 365C excavator
• Caterpillar 365C L excavator
• Caterpillar 385B excavator
• Caterpillar 385C excavator
• Caterpillar 385C L excavator
• Caterpillar 365C L mobile hydraulic power unit

The listed applications include both standard and L-designated machine versions. The 365B II designation is listed separately from the 365B model. The 385B and 385C designations are also listed separately from the corresponding L versions. The mobile hydraulic power unit application is specified as Caterpillar 365C L and should not be treated as interchangeable with the excavator application without confirming the machine and engine identification.

Cross-reference numbers

No additional equipment-manufacturer or supplier cross-reference numbers are provided in the available product data. The identified part number for this cylinder head is 4242921.

Specifications

The stated dimensions are 43 cm in length, 37 cm in width, and 29 cm in depth. The listed weight is 97.1 lb. These dimensional and weight values correspond to the product data for part 4242921; no separate dimensional data for individual components, attached hardware, gaskets, valves, or other cylinder-head contents is specified.

The available information identifies the part as a cylinder head for the C15 application and does not specify included installation hardware or a gasket set. Before installation, verify the machine model, engine identification, and part number against the equipment service documentation.