Komatsu Heavy Equipment Joint 04256-40817

Komatsu Heavy Equipment Joint 04256-40817 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This joint is manufactured in Italy in an ISO-certified facility with more than 50 years of production experience and is backed by our Keep Ops Moving™ commitment.

Why buyers choose the 19PARTS KOM line

• Manufactured in Italy for heavy-equipment applications
• Produced in an ISO-certified facility with more than 50 years of manufacturing experience
• Built for dependable performance in Komatsu assemblies
• Supported by 19PARTS and our Keep Ops Moving™ commitment

Fitment hint from source data

Source usage data links this part to Wheel Loader, Dozer applications. Common machine models include: D41E-6K, WA900-3E0, WA800-3E0, D41E-6, D41P-6, D41P-6K, D65E-12, D85ESS-2, D21A-8E0, D21P-8E0, D63E-12, D31P-20, and other Komatsu models. Reported category/application areas: Bulldozers, Wheel Loaders. Usage evidence: this part appears in 630 parts-book usage row(s) across 109 machine model reference(s) in the supplied Komatsu usage report.

Part information

• Komatsu part number: 04256-40817
• Alternate search number: 0425640817
• Product type: Joint

Fitment and verification

Use the model-specific hubs and diagram callouts on our site to verify the correct Komatsu part number, callout location, and serial-range fitment before ordering. The hubs provide the machine-specific authority, while this product page focuses on quality, sourcing, and buying confidence.

Brand and quality

The 19PARTS KOM line is built around practical uptime: quality-focused Komatsu replacement parts, transparent identification, and support for customers who need to keep machines working. For part number 04256-40817, rely on 19PARTS to help you Keep Ops Moving™.