For sterndrive engines. Balanced: the number of turns lock-to-lock is equal port to starboard or vice-versa. Maximum rudder torque 66 kgm (5738 lbs. in). The UC215-I cylinders are recommended for use with UP28 or UP33 series helms and pre-assembled hoses (Kit OB and Kit OB/R5). 3/8" or 10mm diameter copper tubing can be used as an alternative tubing for plumbing the systems. For these applications a fitting kit 84110 - KIT 95 or 84111 KIT 100 - is required.