Mercury 850 thunderbolt switch box. Offering discount prices on OEM parts for over 50 years.

Mercury 850 thunderbolt switch box. Used part but was tested after removal from motor and has good strong spark. 114-2986 4 & 6 Cyl Switch Box Fits most 1967-1977 4 and 6 cylinder engines. The diagram i have shows the white wire should connect to the switch box somewhere. FAST $4. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Apr 10, 2012 · I have upgraded many engines with the CDI brand 114-2986 switch box, it has a hotter spark and the engine fires and warms up faster and produces better proformance. Manufacturer Part Number: 2986A22 332-2986A8. I find the white wire connected to the rectifier on the same terminal as the red wire. View parts diagrams and shop online for 1850505 : Mercury Marine Outboard 1975 85 1850505. What is the firing order maybe they have plug wires on distributer wrong You know what i Aug 6, 2025 · Find many great new & used options and get the best deals for Mercury 1969 - 1974 1975 Switch Box 50 65 80 85 HP 4 Cylinder 1 YEAR WARRANTY at the best online prices at eBay! Free shipping for many products! Apr 30, 2010 · Re: Mercury 850 thunderbolt control box issues You are probably refering to the Mercontrol box used thru the 70's. The engine runs but the gauges and ignition are hot all the time. fkn578z fgnzu hhhsx 0zs r5 g7x ojk m6uk qtpi wj