21T-30-00110 Floating Oil Seal for Komatsu Excavators PC300 PC400 PC450 Bulldozers D155A

21T-30-00110 Floating Oil Seal – High-Quality Aftermarket Replacement for Komatsu Equipment

Protect the undercarriage bearings in your Komatsu machine with this premium aftermarket 21T-30-00110 floating oil seal. Engineered as a direct OEM replacement, it provides reliable sealing to prevent mud, water, and debris intrusion while retaining lubricant, extending track component life in harsh dozing and digging conditions.

Key Benefits for Contractors and Operators

• Prevents Undercarriage Damage: Duo-cone design blocks contaminants and retains oil for reduced wear on idlers, rollers, and final drives.
• Direct Fit Installation: Matches genuine Komatsu specs for quick, no-modification replacement – easy to install during track service.
• Built Tough for Heavy Duty Use: High-grade material resists abrasion, pressure, and extreme environments for long-lasting reliability on job sites.
• Cost-Effective Alternative: OEM-level protection at aftermarket pricing – ideal for routine maintenance and fleet repairs.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Komatsu Models

This floating oil seal is commonly used for models including (verify your machine’s parts manual for exact fit):

• Bulldozers: D135A, D150A, D155A, D155S
• Excavators: PC220LL, PC270LL, PC300, PC300HD, PC300LL, PC350HD, PC350LL, PC380, PC390, PC390LL, PC400, PC400HD, PC400ST, PC410, PC450, PC550, PC600, PC650
• Mobile Crushers and Recyclers: BR500JG

Specifications

Questions? Contact us for fitment confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.