Komatsu Heavy Equipment Piston 417-43-17120

Komatsu Heavy Equipment Piston 417-43-17120 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This piston 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: WA100, WA120, WA120L, WA150, WA180, WA200, WA250. Reported category/application areas: WHEEL LOADERS. Reported serial ranges include: 63001-UP, 60001-62999, 53001-UP, S/N 53001-UP, 50001-52999, 50001-52999 (3-SPEED TRANSMISSION SPEC.), 50001-52999 (4-SPEED TRANSMISSION SPEC.), 53001-UP (FOR KOMATSU HANOMAG (GERMANY)).

Part information

• Komatsu part number: 417-43-17120
• Alternate search number: 4174317120
• Product type: Piston
• Usage-report description: PISTON, PISTON,MASTER, PISTON (KIT), PISTON (K5), PISTON (K4)

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 417-43-17120, rely on 19PARTS to help you Keep Ops Moving™.