1400184 Seal-Back Fits Caterpillar Models
1400184 Seal-Back Fits Caterpillar Models
Regular price
$28.56 USD
Regular price
Sale price
$28.56 USD
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One New Aftermarket Replacement Hydraulic Cylinder Backup Ring for Caterpillar (Cat) Equipment
This backup ring (also called a back-up ring or seal-back) is used in Caterpillar hydraulic cylinder assemblies to prevent seal extrusion under high-pressure operating conditions. Installed alongside primary O-rings or hydraulic seals, it supports the sealing element and extends the service life of the cylinder seal by bridging the extrusion gap between moving and stationary components.
Compatible Models
Caterpillar (Cat): Verify compatibility by confirming part number 1400184 against your machine's parts manual or serial number before ordering.
Replaces Part Number(s):
1400184
New aftermarket replacement part - not remanufactured, not used.
