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 Features

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 Equipment Models

Tractors: 330, 330 L, 330B, 330B L, 330C, 330C L, 330D, 330D L 336D, 336D L, 336D2, 336E, 336E L, 336F L 340D related series

Specifications

Part Number	128-9170 (1289170)
Part Type	Lip Type Seal
Application	Hydraulic Sealing
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-128-9170
MOQ	1 PCS
Delivery Time	1-3 business days

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

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Browse more Caterpillar replacement parts or compare other hydraulic seals. For fitment confirmation, send the OEM part number, machine model and serial number through our inquiry form or WhatsApp.