Komatsu Heavy Equipment Relief Valve 423-43-37650

Komatsu Heavy Equipment Relief Valve 423-43-37650 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This relief Valve 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: WA380, WA380Z, WA430, WA450, WA470, WA480, WA500. Reported category/application areas: WHEEL LOADERS. Reported serial ranges include: 65001-65948 (ECOT3), 65001-65948 (ECOT3, FOR EU), 65001-65948 (ECOT3, FOR NORTH AMERICA), 65949-UP (EU STANDARD MACHINE), 65949-UP (NORTH AMERICA STANDARD MACHINE), 65949-UP, A53001-UP, A54001-UP.

Part information

• Komatsu part number: 423-43-37650
• Alternate search number: 4234337650
• Product type: Relief Valve
• Usage-report description: RELIEF VALVE, VALVE, RELIEF

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 423-43-37650, rely on 19PARTS to help you Keep Ops Moving™.