A rocker arm apparatus, comprising: first and second outer arms connected to one another at a hydraulic lash adjuster end to move together, the first and second outer arms having respective first and second recesses formed therein, each recess having a closed end and an open end facing inwardly of the outer arms (210, 220); an inner arm located between the first and second outer arms, the inner arm having third and fourth holes formed therein each having an open end facing outwardly of the inner arm, the inner arm being rotatable relative to the first and second outer arms between first and second positions, the open ends of the first and third holes facing and being aligned with each other, and the open ends of the second and fourth holes facing and being aligned with each other when the inner arm is in the first position; a lost motion spring coupled between and in engagement with the inner arm and the first and second outer arms (210, 220), the lost motion spring resisting rotation of the inner arm relative to the outer arms (210, 220); a lost motion spring engagement arrangement including: an inner arm spring engagement element formed as a partial cylindrical shell on the inner arm and including a central pin extending downward from a top portion of the shell and engaging a top portion of the lost motion spring, and an outer arm spring engagement element formed on the outer arm portion connecting the first and second outer arms (210, 220) and including a depression and a central cylindrical pin extending upward from a bottom portion of the outer arm portion connecting the first and second outer arms and engaging a bottom portion of the lost motion spring; first and second pistons located at least partially in the third and fourth holes, respectively; springs urging the first and second pistons outwardly towards the open ends of the third and fourth holes, respectively, such that when the inner arm is in the first position the first and second pistons extend into the first and second holes, respectively, thereby locking the inner arm against rotation relative to the first and second outer arms; and first and second fluid flow paths formed in the first and second outer arms, respectively, to allow fluid under pressure to be applied to the first and second holes, respectively, wherein when the first and second pistons extend into the first and second holes, they are pushed out of the first and second holes by the fluid pressure and the inner arm can be rotated relative to the first and second outer arms. first and second outer arms connected to one another at a hydraulic lash adjuster end to move together, the first and second outer arms having respective first and second recesses formed therein, each recess having a closed end and an open end facing inwardly of the outer arms (210, 220); an inner arm located between the first and second outer arms, the inner arm having third and fourth holes formed therein each having an open end facing outwardly of the inner arm, the inner arm being rotatable relative to the first and second outer arms between first and second positions, the open ends of the first and third holes facing and being aligned with each other, and the open ends of the second and fourth holes facing and being aligned with each other when the inner arm is in the first position; a lost motion spring coupled between and in engagement with the inner arm and the first and second outer arms (210, 220), the lost motion spring resisting rotation of the inner arm relative to the outer arms (210, 220); a lost motion spring engagement arrangement including: an inner arm spring engagement element formed as a partial cylindrical shell on the inner arm and including a central pin extending downward from a top portion of the shell and engaging a top portion of the lost motion spring, and an outer arm spring engagement element formed on the outer arm portion connecting the first and second outer arms (210, 220) and including a depression and a central cylindrical pin extending upward from a bottom portion of the outer arm portion connecting the first and second outer arms and engaging a bottom portion of the lost motion spring; an inner arm spring engagement element formed as a partial cylindrical shell on the inner arm and including a central pin extending downward from a top portion of the shell and engaging a top portion of the lost motion spring, and an outer arm spring engagement element formed on the outer arm portion connecting the first and second outer arms (210, 220) and including a depression and a central cylindrical pin extending upward from a bottom portion of the outer arm portion connecting the first and second outer arms and engaging a bottom portion of the lost motion spring; first and second pistons located at least partially in the third and fourth holes, respectively; springs urging the first and second pistons outwardly towards the open ends of the third and fourth holes, respectively, such that when the inner arm is in the first position the first and second pistons extend into the first and second holes, respectively, thereby locking the inner arm against rotation relative to the first and second outer arms; and first and second fluid flow paths formed in the first and second outer arms, respectively, to allow fluid under pressure to be applied to the first and second holes, respectively, wherein when the first and second pistons extend into the first and second holes, they are pushed out of the first and second holes by the fluid pressure and the inner arm can be rotated relative to the first and second outer arms.