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Our Buckshot Racing #77 made-in-the-US replacement for the Mercury Race 856991A1 coil is an ignition coil designed for the Mercury Racing 280 HP ROS (Race Offshore) Outboard and also fits a variety of 2-stroke outboard engines produced by Mercury Marine including the 300X.


This includes but is not limited to Mercury DFI outboard engines manufactured from 1998 to 2006 ranging from 135HP to 300HP.


It is manufactured to stringent original equipment manufacturer specifications to optimize the performance of Mercury and Mariner outboards or MerCruiser stern drives.


This ignition coil is a crucial component in the ignition system of these engines, responsible for generating the high voltage needed to create a spark across the spark plug gap, igniting the air-fuel mixture in the engine’s cylinders at the right time.


The Mercury 856991A1 coil can be cross-referenced with the following part numbers:

ARCO Part # IG012
MERCURY Ignition Coil 339-850227
SIERRA Ignition Coil 18-5187
CDI Electronics Ignition Coil 184-0005


Includes one (1) Ignition Coil for Mercury Racing 280 HP ROS. 


Optional Offers:

Make it a Set of 6 Coils for $450 total

Make it a Set of 6 Coils + 6 Super Wires for $595 total

Ignition Coil for Mercury Racing 280 HP ROS

SKU: IC5187-77
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