Κ Forward 4th Forward 4th In 4th forward, 4th clutch (K4) and 3rd clutch (K3) are engaged. 4th clutch and 3rd clutch are actuated by the hydraulic pressure applied to the clutch piston. OUTPUT 7577APT07 F4 3-10 KR KV IN K4 K2 INPUT K3 K1 OUT GEAR PATTERN K1 K K4 OUTPUT KR KV K2 3