SEAL KIT - BOOM LIFT CYLINDER (JCB JC991-00115)

JC991-00115: A worn seal kit can lead to fluid leakage from a boom lift cylinder, reducing lifting performance. This aftermarket replacement part references JCB as the OE maker and cross-references part number JC991-00115. The seal kit contains multiple sealing components that prevent fluid bypass between moving cylinder parts. A common failure consequence is gradual loss of cylinder pressure, causing the boom to drift or fail to hold position. During operation, seals degrade from heat and pressure cycles, eventually allowing external leaks. Verify the serial number or application, then call (562) 693-7748.

Part number variants: JC991-00115, jc991-00115, JC99100115, jc99100115