Komatsu Heavy Equipment Bearing 421-22-12770

Komatsu Heavy Equipment Bearing 421-22-12770 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This bearing 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, Dump Truck, Dozer applications. Common machine models include: HM350, HM400, WA400, WA420, WA450, WA450L, WA470. Reported category/application areas: DUMP TRUCKS, WHEEL LOADERS. Reported serial ranges include: 1001-UP (-40CENT. SPEC.), 1001-UP, 2001-UP (ECOT3), 2001-UP (ECOT3, FOR EU), 2219-UP, A11001-UP, A10001-UP, 7001-UP (W/O EGR).

Part information

• Komatsu part number: 421-22-12770
• Alternate search number: 4212212770
• Product type: Bearing

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 421-22-12770, rely on 19PARTS to help you Keep Ops Moving™.