Mercury Kiekhaefer 10-23172 Main Carburetor Carb Adjustment Screw Needle KB4 KD4 Power Steering (These earlier ones are shorter

(These earlier ones are shorter overall)

Kill switch is still installed on plate

) GM 305 V-8 1977-1978)

Pin part number is 49932A1 / 49932

These were used basically in for the 1983-1986 models before they started putting the XD trim arms on everything

Mercury Kiekhaefer 10-23172 Main Carburetor Carb Adjustment Screw Needle KB4 KD4 Power Steering (These earlier ones are shorterItem Description Mercury Part Number 10 23172 Main Adjustment Carburetor Screw. KB4 & KD4 I had a large amount of these type of items that I wanted to process in a short time, so more details for compatibility will be added later for those of you that don't have access to the parts diagrams. If you are unsure on compatibility feel free to ask! Purchase with confidence! General Disclaimer (please read) These are New Old Stock Parts from a large mercury