1362445 Ring-Backup Fits Caterpillar Models
1362445 Ring-Backup Fits Caterpillar Models
Couldn't load pickup availability
One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Excavators and Front Shovels
This backup ring (part number 1362445) is a hydraulic sealing component used in Caterpillar (Cat) large excavators, front shovels, and mobile hydraulic power units. Backup rings are thin support rings installed alongside O-rings and shaft seals to prevent seal extrusion under high hydraulic pressure, helping maintain fluid integrity and extend the service life of hydraulic cylinder components. This part is associated with the engine oil pump assembly and is typically serviced during oil pump or oil pan removal procedures.
Compatible Models
Caterpillar Excavators: 345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L
Caterpillar Front Shovels: 385C, 5090B
Caterpillar Mobile Hydraulic Power Units: 365C L, 385C, 385C L
Replaces Part Number(s):
1362445
New aftermarket replacement part - not remanufactured, not used.
