Item 70002621 has must read information.
: Per the vendor there was a change made to this charge relief valve kit, the change is NOT backward compatible for service replacement. For proper service replacement please obtain the serial number from the hydraulic tandem pump and order per the following: *Hydraulic Tandem Pump prior to pump serial number A-14-02-22472 use charge relief valve kit 70002621 (The s/n break for p/n 70002621 only applies if you have not already updated your center section assembly p/n 70002605. See 70002605 consult factory for those details) *Hydraulic Tandem Pump serial number A-14-02-22472 to present use charge relief valve kit 70005417
