Exhaust Valve – Head Inconel 751 – RE557891

This product page brings together the key catalog identifiers for Exhaust Valve – Head Inconel 751: part number RE557891 and its listed Komatsu engine/application fitment. These identifiers are intended to make part-number searches and application checks easier before purchase.

Komatsu Fitment Overview

Catalog data currently associates this product with 6 listed Komatsu engine/application references. Examples include KT2300, S4D155-4, S6D155-4, with the complete list provided below.

Compatible Engines / Applications

• KT2300
• S4D155-4
• S6D155-4
• SA6D140E-2 & SAA6D140E-2
• SA6D155-4
• VTA1710

Product Details

• Item: Exhaust Valve – Head Inconel 751
• Part Number: RE557891
• Brand / Application Reference: Komatsu
• Catalog Specification: As stated in the product name
• Listed Applications: 6

Service and Replacement Notes

Cylinder-head and valvetrain components can vary by engine revision and application. Match the exact part number and full engine/application designation before ordering. Related engines may use components that appear similar but are not interchangeable.

Before Ordering

Use this compatibility information as a catalog reference, not as a substitute for equipment identification. Confirm part number RE557891 and the complete Komatsu engine/application designation before installation.