Komatsu Heavy Equipment Back-Up Ring 707-35-90940

Komatsu Heavy Equipment Back-Up Ring 707-35-90940 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This back-Up Ring 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 Excavator, Wheel Loader, Dozer applications. Common machine models include: WA600, WA380, WA430, PC1100, PC400, PC400LC, PC600, PC600LC, PC750, PC750SE, PC800, PC88MR, PW98MR, PC200. Reported category/application areas: WHEEL LOADERS, EXCAVATORS. Reported serial ranges include: 60001-60637 (ECOT3), 60638-UP, 65001-UP (W/O EGR), 65021-UP, 65001-65948 (ECOT3), 65001-65948 (ECOT3, FOR EU), 65001-65948 (ECOT3, FOR NORTH AMERICA), 65949-UP (EU STANDARD MACHINE).

Part information

• Komatsu part number: 707-35-90940
• Alternate search number: 7073590940
• Product type: Back-Up Ring
• Usage-report description: RING,BACK-UP (KIT), RING, BACK-UP, (KIT : K06), RING, BACK-UP, (KIT : K09), RING, BACK-UP, RING, BACK-UP, (KIT)

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 707-35-90940, rely on 19PARTS to help you Keep Ops Moving™.