Komatsu Heavy Equipment Piston 418-43-27550

Komatsu Heavy Equipment Piston 418-43-27550 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: WA120, WA120L, WA180, WA180PT, WA250, WA250PT. Reported category/application areas: WHEEL LOADERS. Reported serial ranges include: 53001-UP (FOR KOMATSU HANOMAG (GERMANY)), 53001-UP (S4D102E-1 (EMISSION) ENG. INSTALLED), 54001-UP (FOR NORTH AMERICA), 53001-UP (M/C), 50001-UP (PARALLEL LINKAGE SPEC.), 53001-UP, A71001-UP, A78001-UP.

Part information

• Komatsu part number: 418-43-27550
• Alternate search number: 4184327550
• Product type: Piston
• Usage-report description: PISTON, PISTON (KIT), PISTON, PRIMARY

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 418-43-27550, rely on 19PARTS to help you Keep Ops Moving™.