Caterpillar 1.6mm Thick Swing Motor Separator Plate 188-4173 is a swing motor & gearbox product that supports upper-structure rotation and swing-drive power transfer. It is listed for Caterpillar heavy-equipment applications; use part number 188-4173 as the primary identification reference.
- Part Number: 188-4173
- Brand: Caterpillar
- Product Category: Swing Motor & Gearbox
- Equipment Type: Generator Set, Shovel Logger, Hex Based Spl Solution, Material Handler, Forest Products, Track Feller Buncher
- Compatible Models: 3512, 3512B, 345C, 352F OEM, 330F OEM, MH3250, M325D MH, MH3260, MH3032, MH3040, MH3050, M325D L MH, OTHER, TK732, 2390, 2391, TK722, 552 2, TK721, TK752, TK751, 1190, 511, 541 2, TK741, 2290, 522, 521, 2590, 1390
- 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.





