O-Ring – 6127-21-2221G

O-Ring 6127-21-2221G is cataloged for the Komatsu engine/application references listed on this page. Because related Komatsu models can use different components, confirm the exact part number together with the complete application code rather than relying on the base model alone.

Komatsu Fitment Overview

Catalog data currently associates this product with 11 listed Komatsu engine/application references. Examples include 4D105-3C, 4D105-5H/5J/5T, 4D105-5H/5T, with the complete list provided below.

Compatible Engines / Applications

• 4D105-3C
• 4D105-5H/5J/5T
• 4D105-5H/5T
• 6D105-1
• S4D105-1 & 2
• S4D105-3
• S4D105-5A/B
• S6D105-1
• S6D110-1
• SA6D110-1
• SA6D110-1C/G

Product Details

• Item: O-Ring
• Part Number: 6127-21-2221G
• Brand / Application Reference: Komatsu
• Catalog Specification: As stated in the product name
• Listed Applications: 11

Service and Replacement Notes

Cylinder-repair parts should be selected from exact catalog data rather than appearance. Pay close attention to piston, ring, liner, or sleeve size references and to engine suffixes in the compatibility list. These details can distinguish otherwise similar components.

Before Ordering

To reduce returns and fitment errors, verify the exact catalog number 6127-21-2221G and your complete engine or equipment identification before ordering. Pay particular attention to suffixes and grouped model designations.