7Y1257 Ring for Caterpillar — SKU 7Y1257

7Y1257 is a slit transmission seal ring used in Caterpillar excavators, forest machines and OEM solutions. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The ring is used on the following Caterpillar equipment models and machine series:

• Excavators:
  • 320C
  • 320C FM
  • 320D
  • 320D FM
  • 320D FM RR
  • 320D2 FM
  • 322C FM
  • 323
  • 323D S
  • 323D SA
  • 323E SA
  • 323F SA
  • 325C
  • 325C L
  • 325D
  • 325D L
  • 329D
  • 329D L
  • 329D LN
  • 329D2
  • 329D2 L
  • 329E
  • 329E L
  • 329E LN
  • 329F L
  • 330
  • 330 GC
  • 330 L
  • 330 LN
  • 330-A
  • 330-A L
  • 330-A LN
  • 330B
  • 330B L
  • 330B LN
  • 330D2
  • 330F
  • 330F L
  • 330F LN
  • 330F OEM
  • 330FMHPU
  • 330GC
  • 333 OEMS
• OEM solutions:
  • 330 MHPU OEMS
• Forest machines:
  • 324D FM
  • 324D FM LL
  • 538

Cross-reference numbers

• 7Y-1257
• 7Y1257

Specifications