Komatsu Dozer Ring 145-15-42820

Komatsu Dozer Ring 145-15-42820 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This 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 Dozer applications. Common machine models include: D21P, D21PL, D21Q, D21S, D275A, D375A, D375AI, D65A, D65E, D65P, D75A. Reported category/application areas: BULLDOZERS. Reported serial ranges include: 45007-UP (STRAIGHT TILT DOZER), 45013-UP, 45094-UP, 45003-UP, 10001-UP (-50CENT. SPEC.), 10001-UP, 17001-UP (6 TRACK ROLLER), 17001-UP (FOR CANADA. Related or analog part numbers from source data: 1031529220.

Part information

• Komatsu part number: 145-15-42820
• Alternate search number: 1451542820
• Product type: Ring
• Usage-report description: RING, RING,SEAL, RING,SEAL (K2), RING (K2), RING,SEAL (K3)

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 145-15-42820, rely on 19PARTS to help you Keep Ops Moving™.