Series 4 - T-34A cavity, Viton, cartridge seal kit

990034006 : Series 4 - T-34A cavity, Viton, cartridge seal kit
Technical Features [ + ]

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.
Cartridge Installation Data [ + ]
Series 4
Cartridge Thread M48M48
Valve Hex Size 1 5/8 in.41,3 mm
Valve Installation Torque 350 - 375 lbf ft474 - 508 Nm
Cavity T-34A
Used With [ + ]

What models can this kit be used with?

  • DSIH Low side, 3-position, hot oil shuttle valve
  • DSIO Spring offset, 2-position, high side shuttle valve
  • DSIS High side, 3-position, shuttle valve
  • DSIX 3-way, 2-position, vent-to-shift diverter valve, normally closed
  • DSIY 3-way, 2-position, vent-to-shift diverter valve, normally open
  • FSFA Closed center, flow divider-combiner valve
  • FSFC High accuracy flow divider valve
  • FSFD Flow divider valve
  • FSFG High accuracy, closed center, flow divider-combiner valve
  • FSFH High capacity, closed center, flow divider-combiner valve
  • FSFR High accuracy synchronizing, flow divider-combiner valve
  • FSFS Synchronizing, flow divider-combiner valve
  • LHJA Bypass/restrictive, priority modulating element
  • XVCA All ports blocked cavity plug
Notes [ + ]
  • Install back-up rings and O-rings as shown in views.
  • When installing continuous back-up rings, use the same technique and the same care used to install O-rings.
  • When installing cartridge - be sure to torque to recommended value.
Additional Resources [ + ]