Valve Seat – Exhaust – 377-0400

Looking up the correct valve seat – exhaust starts with the exact catalog number. This product is listed as 377-0400 and is associated with the Komatsu engine/application data below. Use both the number and the full application designation when checking fitment.

Komatsu Fitment Overview

Catalog data currently associates this product with 3 listed Komatsu engine/application references. Examples include N855-1, NT855-1, NTA855-1.

Compatible Engines / Applications

• N855-1
• NT855-1
• NTA855-1

Product Details

• Item: Valve Seat – Exhaust
• Part Number: 377-0400
• Brand / Application Reference: Komatsu
• Catalog Specification: As stated in the product name
• Listed Applications: 3

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

Before ordering, compare 377-0400 with the number on the original part or with trusted service information. Also verify the full engine or machine designation, including suffixes, series codes, and size references where applicable.