8M4014 Exhaust Valve Insert for Caterpillar

The 8M4014 is an exhaust valve insert for Caterpillar engines used in generator-set and industrial engine applications. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as an exhaust valve insert and is also described as an exhaust insert seat. The applicable equipment manufacturer is Caterpillar; the part is not identified as being manufactured by Caterpillar.

Fitment

This exhaust valve insert is listed for the following Caterpillar engine models and series:

• Caterpillar D379
• Caterpillar D379B
• Caterpillar D398
• Caterpillar D398B
• Caterpillar D399
• Caterpillar G379
• Caterpillar G379A
• Caterpillar G398
• Caterpillar G399

Application information identifies the compatible equipment as Caterpillar engine-generator sets and Caterpillar industrial engines. The model references above include both diesel engine models and gas engine models listed in the available application data.

Before installation, the engine model and the existing part number should be checked against the equipment parts documentation. The D379B model appears more than once in the source application data and is listed here once to avoid duplication.

Cross-reference numbers

The following numbers are associated with the 8M4014 exhaust valve insert and are included as cross-reference information:

• 8M4014
• 4M4319
• 7M0991
• 1S5738

8M4014 is the SKU and primary identification number for this product. The additional numbers may be used in equipment and supplier records for the same referenced exhaust valve insert application.

Specifications

The supplied dimensions are stated as length, width, and depth. The available product data does not specify the insert material, thread information, installation position beyond the exhaust application, or any additional components included with the part.