Mercury 815607A1 815603A1 66778T Throttle Lever Actuator 30hp 40hp 4cyl 1989-96 NOS DO NOT BUY THIS FOR

DO NOT BUY THIS FOR A MERCRUISER DRIVE MADE AFTER 1969

The Short one is about 12 inches the long one is about 18 inches

Generally nested inside of the 33863 Pulley to make that a 3-grove pulley

All of the other ones look much different

Mercury 815607A1 815603A1 66778T Throttle Lever Actuator 30hp 40hp 4cyl 1989-96 NOS DO NOT BUY THIS FORNotable Part Number(s) Included Mercury 815607A1 Spark Advance Lever Mercury 815603A1 Throttle Actuator Mercury 66778T Throttle Plate Mercury 39483 Latch Mercury 815605 878171 Link Rod Mercury 93421 Swivel Ball General Application Compatibility Removed from a 1994 Mercury 40hp 4cyl Two Stroke (Oil Injected) Outboard S N 0D280104 This seems to have been found on only the 30hp Jet 4cyl & 40hp 4cyl 1989 1996 & Some 45hp & 50hp 4cyl Models using the