1052579 Ring Backup Fits Caterpillar Models
1052579 Ring Backup Fits Caterpillar Models
Regular price
$38.00 CAD
Regular price
Sale price
$38.00 CAD
Unit price
per
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One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Excavators
This backup ring (also listed as BU-Ring or Ring-Backup) is a hydraulic cylinder seal component used in bucket, stick, and hydraulic cylinder assemblies on Caterpillar (Cat) excavators. Backup rings support primary seals under high-pressure hydraulic conditions, preventing seal extrusion and maintaining cylinder integrity during operation.
Compatible Models
Caterpillar Excavators: 318B, 318B N, 318C, 319D L, 319D LN, 320B, 320B FM LL, 320C, 320C FM, 320D, 320E, 320E RR, 322, 322B, 322C, 324D, 324D L, 324E, 324E L, 324E LN, 325B, 325C, 326D L, 328D LCR, 330C L, 345B II, 345C, 375
Replaces Part Number(s):
1052579
New aftermarket replacement part - not remanufactured, not used.
