421-33-21811 TB Type Oil Seal for Komatsu Wheel Loaders WA420 WA450 WA470 Front Wheel Brake

421-33-21811 TB Type Oil Seal – High-Quality Aftermarket Replacement for Komatsu Wheel Loaders

Protect your Komatsu wheel loader’s front wheel brake system with this premium aftermarket 421-33-21811 TB type oil seal. Engineered as a direct OEM replacement, it provides reliable sealing to prevent oil leaks, block contaminants, and maintain smooth braking performance in demanding loading conditions.

Key Benefits for Contractors and Operators

• Prevents Costly Leaks: Keeps brake fluid contained and dirt out, reducing wear and expensive brake repairs on high-hour machines.
• Direct Fit Installation: Matches genuine Komatsu specs for quick, no-modification replacement – minimize downtime during routine maintenance.
• Built Tough for Heavy Duty Use: High-grade rubber resists abrasion, pressure, and harsh environments for longer service life.
• Cost-Effective Alternative: OEM-level sealing at aftermarket pricing – ideal for fleet owners and budget-conscious operations.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Komatsu Models

This oil seal is commonly used in front wheel brake systems for models including (verify your machine’s parts manual for exact fit):

• WA400-3A, WA420-3
• WA450-3, WA450L-3, WA470-3
• WA500-3, WF450T-3 and related series

Specifications

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