Control Valve Mk3 ( Square Shaft) – 1681789M91

For buyers searching by part number or engine application, this page identifies Control Valve Mk3 ( Square Shaft) 1681789M91 and the Komatsu compatibility data supplied for it. Review the full list before ordering, especially where model suffixes or combined application codes are shown.

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: Control Valve Mk3 ( Square Shaft)
• Part Number: 1681789M91
• 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

The most reliable fitment check is an exact part-number match combined with matching application data. Confirm 1681789M91 against the original component, parts manual, or service record before purchase.