Komatsu Excavator Seal TZ15Z-25-42-10

Komatsu Excavator Seal TZ15Z-25-42-10 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This seal 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, Dozer applications. Common machine models include: PC100, PC120, PC120LC, PC120SC, PC128US, PC128UU, PC130, PC138US, PC138USLC. Reported category/application areas: EXCAVATORS. Reported serial ranges include: 40001-UP, 45001-UP, 70001-UP (SAA4D102E-2 (EMISSION) ENG. INSTALLED), 70001-UP, 45001-UP (OVERSEAS VERSION), 10001-UP, 1001-UP, 5001-9500 (FOR EU). Related or analog part numbers from source data: MHS553A081504.

Part information

• Komatsu part number: TZ15Z-25-42-10
• Alternate search number: TZ15Z254210
• Product type: Seal
• Usage-report description: SEAL, SEAL (K1), SEAL,OIL, SEAL,OIL (K1), SEAL (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 TZ15Z-25-42-10, rely on 19PARTS to help you Keep Ops Moving™.