Caterpillar SEAL KIT 166-0321 is a seals & filters product that supports fluid sealing, contamination control and system protection. It is listed for Caterpillar heavy-equipment applications; use part number 166-0321 as the primary identification reference.
- Part Number: 166-0321
- Brand: Caterpillar
- Product Category: Seals & Filters
- Equipment Type: Track Loader, Wheel Tractor, Wheel Tractor-Scraper, Load Haul Dump, Motor Grader, Hydraulic Shovel
- Compatible Models: 267, 277B, 277D, 277C, 257, 297D2, 257D3, 297D XHP, 287, 277C2, 267B, 277, 257B3, 257D, 297D, 297C, 287C2, 247, 247B3, 287C, 287B, 287D, 297D2 XHP, 289D, 289C, 279C2, 279D3, 259D, 299D, 299C
- Engine Models: Confirm by equipment serial number
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





