128-9170 Lip Type Seal for Cat 330 336 Swing Drive

128-9170 Lip Type Seal – Reliable Aftermarket Replacement for Caterpillar Excavators

Get your Caterpillar excavator swinging smoothly again with this high-quality aftermarket 128-9170 lip type seal. Designed as a direct replacement for genuine Cat parts, it features a 165mm shaft diameter (165.08mm precise) and premium rubber material for excellent resistance to oil, wear, and extreme conditions.

Key Benefits for Contractors and Operators

• Prevents Costly Leaks: Keeps dirt out and oil in the swing drive gearbox, protecting gears and bearings from damage.
• Direct Fit Installation: Matches OEM specifications for quick, no-modification replacement – get back to work faster with less downtime.
• Built Tough for Heavy Duty Use: High-grade nitrile rubber (NBR) withstands harsh job site environments for extended life.
• Cost-Effective Alternative: Delivers OEM performance at aftermarket pricing – great for fleet maintenance and budget-conscious repairs.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Caterpillar Models

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

• 330, 330 L, 330B, 330B L, 330C, 330C L, 330D, 330D L
• 336D, 336D L, 336D2, 336E, 336E L, 336F L
• 340D and related series

Specifications

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