Komatsu Heavy Equipment Rear Seal 6610-21-1321

Komatsu Heavy Equipment Rear Seal 6610-21-1321 is part of the 19PARTS KOM line, developed for demanding heavy-equipment service where dependable fit, durability, and day-to-day uptime matter. This rear 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 Dozer, Motor Grader applications. Common machine models include: GD705A, GD705R, D50A, D50P, D50PL, D53A, D53P, D60A, D60P, D60PL, D65A, D65E, D65P, D80A. Reported category/application areas: GRADERS, BULLDOZERS. Reported serial ranges include: 10002-UP, 2052-UP (ENGINEERING WORKS SPEC.), 2052-UP (SNOW WORKS SPEC.), 2052-UP, 1001-UP, 65001-UP, 35002-UP, 20006-UP.

Part information

• Komatsu part number: 6610-21-1321
• Alternate search number: 6610211321
• Product type: Rear Seal
• Usage-report description: SEAL REAR (K2), SEAL REAR, SEAL, REAR (K2), SEAL, REAR, SEAL REAR (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 6610-21-1321, rely on 19PARTS to help you Keep Ops Moving™.