Komatsu Heavy Equipment Back-Up Ring 721-88-12010

Komatsu Heavy Equipment Back-Up Ring 721-88-12010 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 Wheel Loader, Dozer applications. Common machine models include: WA500, WA700, WA80, WA120, WA120L, WA150, WA180, WA180L, WA180PT, WA300, WA300L, WA320, WA320AVANCECUSTOMSERIALNO.20001ANDUP, WA350. Reported category/application areas: WHEEL LOADERS. Reported serial ranges include: 50001-UP, 50001-UP (TBG SPEC.), 10001-UP (CAB SPEC.), 10001-UP, 53001-UP (S4D102E-1 (EMISSION) ENG. INSTALLED), 54001-UP (FOR NORTH AMERICA), 63001-UP, S/N 63001-UP.

Part information

• Komatsu part number: 721-88-12010
• Alternate search number: 7218812010
• Product type: Back-Up Ring
• Usage-report description: RING, BACK-UP, RING,BACK-UP, RING, BACK-UP, RING.BACK-UP

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 721-88-12010, rely on 19PARTS to help you Keep Ops Moving™.