Sun offers replacement seal kits for all cartridge models. These kits include all of the external seals on the cartridge along with installation instructions. Seal kits are available in Buna-N and Viton for all models, along with EPDM and polyurethane for many models. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.

• The shelf life for this cartridge seal kit is twenty years from date of purchase. This date will be printed on the kit packaging.

What models can this kit be used with?

• CABG 4.5:1 pilot ratio, vented counterbalance valve - atmospherically referenced
• CABK 1:1 pilot ratio, vented counterbalance valve - atmospherically referenced
• CABN 7:1 pilot ratio, vented counterbalance - valve atmospherically referenced
• CBAA 3:1 pilot ratio, ultra-restrictive counterbalance valve
• CBAAX Fixed setting, 3:1 pilot ratio, ultra-restrictive counterbalance valve
• CBAB 1.5:1 pilot ratio, ultra-restrictive counterbalance valve
• CBABX Fixed setting, 1.5:1 pilot ratio, ultra-restrictive counterbalance valve
• CBAG 4.5:1 pilot ratio, ultra-restrictive counterbalance valve
• CBAGX Fixed setting, 4.5:1 pilot ratio, ultra-restrictive counterbalance valve
• CBAH 10:1 pilot ratio, ultra-restrictive counterbalance valve
• CBBA 3:1 pilot ratio, restrictive counterbalance valve
• CBBAX Fixed setting, 3:1 pilot ratio, restrictive counterbalance valve
• CBBB 1.5:1 pilot ratio, semi-restrictive counterbalance valve
• CBBC 3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBCX Fixed setting, 3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBD 4.5:1 pilot ratio, semi-restrictive counterbalance valve
• CBBDX Fixed setting, 4.5:1 pilot ratio, semi-restrictive counterbalance valve
• CBBG 4.5:1 pilot ratio, restrictive counterbalance valve
• CBBGX Fixed setting, 4.5:1 pilot ratio, restrictive counterbalance valve
• CBBL 2.3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBLX Fixed setting, 2.3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBY 2:1 pilot ratio, restrictive counterbalance valve
• CBCA 3:1 pilot ratio, standard capacity counterbalance valve
• CBCAX Fixed setting, 3:1 pilot ratio, standard capacity counterbalance valve
• CBCB 1.5:1 pilot ratio, standard capacity counterbalance valve
• CBCG 4.5:1 pilot ratio, standard capacity counterbalance valve
• CBCGX Fixed setting, 4.5:1 pilot ratio, standard capacity counterbalance valve
• CBCH 10:1 pilot ratio, standard capacity counterbalance valve
• CBCHX Fixed setting, 10:1 pilot ratio, standard capacity counterbalance valve
• CBCL 2.3:1 pilot ratio, standard capacity counterbalance valve
• CBCLX Fixed setting, 2.3:1 pilot ratio, standard capacity counterbalance valve
• CBCY 2:1 pilot ratio, standard capacity counterbalance valve
• CDAB Back-to-back check/shuttle valve with signal at port 3
• CDAD Back-to-back check/shuttle valve with signal at port 2
• CEBA 3:1 pilot ratio, restrictive, LoadAdaptive™ counterbalance valve
• CEBC 3:1 pilot ratio, semi-restrictive, LoadAdaptive™ counterbalance valve
• CECA 3:1 pilot ratio, standard capacity, LoadAdaptive™ counterbalance valve
• CKCB Pilot-to-open check valve with standard pilot
• CKCD Pilot-to-open check valve with sealed pilot
• CKCR 5:1 pilot ratio, pilot-to-open check valve with standard pilot
• CKCS 5:1 pilot ratio, pilot-to-open check valve with sealed pilot
• CNCD Free flow side to nose check valve with bypass orifice and port 3 blocked
• CNCE Pilot-to-open check valve with bypass orifice
• CNDE Pilot-to-close check valve with bypass orifice
• CODA Pilot-to-close check valve
• CODD 20:1 ratio, pilot-to-close check valve
• CSAB Single ball shuttle valve with signal at port 3
• CSAD Single ball shuttle valve with signal at port 2
• CXCE Free flow side to nose check valve with port 3 blocked
• CXDC Free flow nose to side check valve with port 3 blocked
• DKDD Normally closed, balanced poppet, logic element - vent-to-open
• DODD Normally open, balanced poppet, logic element - vent-to-close
• DPBA 2-way, pilot-operated, directional valve with internal drain to port 3 - normally open
• DPBB 2-way, pilot-operated, directional valve with internal drain to port 3 - normally closed
• DPBC 3-way, pilot-operated, directional valve with internal drain to port 3 (1 blocked, 2 to 3 open)
• DPBD 3-way, pilot-operated, directional valve with internal drain to port 3 (1 to 2 open, 3 blocked)
• DRBA 2-way, direct-acting, directional valve with internal drain to port 3 - normally open
• DRBB 2-way, direct-acting, directional valve with internal drain to port 3 - normally closed
• DRBC 3-way, direct-acting, directional valve with internal drain to port 3 (1 blocked, 2 to 3 open)
• DRBD 3-way, direct-acting, directional valve with internal drain to port 3 (1 to 2 open, 3 blocked)
• DVBA 2-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity - normally open
• DVBB 2-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity - normally closed
• DVBC 3-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity (1 blocked, 2 to 3 open)
• DVBD 3-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity (1 to 2 open, 3 blocked)
• FRCA Fixed-orifice, bypass/restrictive, priority, flow control valve
• HDDA 2-way, solenoid-operated directional poppet valve - after check
• HRDA Direct-acting relief valve - before check
• HRDB Direct-acting relief valve - after check
• LKDC Pilot-to-open, spring-biased closed, unbalanced poppet logic element
• LODA Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1
• LODA8 Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 and integral T-8A control cavity
• LODB Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 2
• LODB8 Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 2 and integral T-8A control cavity
• LODC Pilot-to-close, spring-biased closed, unbalanced poppet logic element
• LODD Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 or 2
• LODD8 Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 or 2 and integral T-8A control cavity
• LODO Pilot-to-close, spring-biased open, unbalanced poppet logic element
• LPDA Normally open, modulating element with pilot source from port 1
• LPDC Normally open, modulating element
• LRDA Normally closed, modulating element with pilot source from port 1
• LRDC Normally closed, modulating element
• MADP Atmospherically referenced LoadMatch™ counterbalance valve
• MBDA 3:1 pilot ratio, load reactive, load control valve
• MBDP LoadMatch™ counterbalance valve
• PBDB Pilot-operated, pressure reducing valve
• PBDB8 Pilot-operated, pressure reducing main stage with integral T-8A control cavity
• PBDF Pilot-operated, pressure reducing valve with drilled piston orifice
• PBDF8 Pilot-operated, pressure reducing main stage with drilled piston orifice and integral T-8A control cavity
• PPDB Pilot-operated, pressure reducing/relieving valve
• PPDB8 Pilot-operated, pressure reducing/relieving main stage with integral T-8A control cavity
• PPDF Pilot-operated, pressure reducing/relieving valve with drilled piston orifice
• PPDF8 Pilot-operated, pressure reducing/relieving main stage with drilled piston orifice and integral T-8A control cavity
• PPDL8 Pilot-operated, pressure reducing/relieving main stage with open transition and integral T-8A control cavity
• PRDB Direct-acting, pressure reducing/relieving valve
• PRDC Direct-acting, pressure reducing/relieving valve with open transition
• PRDR Direct-acting, pressure reducing valve
• QPAA 15%, accumulator sense, pump unload valve - pilot capacity
• QPAB 20%, accumulator sense, pump unload valve - pilot capacity
• QPAC 30%, accumulator sense, pump unload valve - pilot capacity
• QPAD 50%, accumulator sense, pump unload valve - pilot capacity
• RBAD Dual, direct-acting relief valve - pilot capacity
• RSDC Pilot-operated, balanced piston sequence valve
• RSDC8 Pilot-operated, balanced piston sequence main stage with integral T-8A control cavity
• RSDS Pilot-operated, balanced poppet sequence valve
• RSDS8 Pilot-operated, balanced poppet sequence main stage with integral T-8A control cavity
• RVCA Ventable, pilot-operated, balanced piston relief valve
• RVCB Normally closed modulating element valve with relief function
• SCCA Direct-acting sequence valve with reverse flow check
• SQDB Kick-down, pilot-operated, balanced piston sequence valve
• SXCA Direct-acting sequence valve without reverse flow check
• XEAA Port 2 to 3 open, port 1 blocked cavity plug
• XEBA Port 1 to 3 open, port 2 blocked cavity plug
• XECA All ports blocked cavity plug
• XEOA Port 1 to 2 open, port 3 blocked cavity plug
• XEOB All ports open cavity plug
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