Komatsu Heavy Equipment Filter 421-07-12312

Komatsu Heavy Equipment Filter 421-07-12312 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This filter 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: WA500-1LC, WA800-3E0, WA350-1, WA900-3E0, WA500-1, WA700-3, WA300-1, WA320-3, WA600-1, WA800-1, WA800-2, WA900-1, and other Komatsu models. Reported category/application areas: Wheel Loaders, Graders. Usage evidence: this part appears in 1115 parts-book usage row(s) across 119 machine model reference(s) in the supplied Komatsu usage report.

Part information

• Komatsu part number: 421-07-12312
• Alternate search number: 4210712312
• Product type: Filter

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 421-07-12312, rely on 19PARTS to help you Keep Ops Moving™.