ITEM NAME:Replacement Ignition Coil +Pigtail Harness for Optimax 300-879984T01 Description: High Performance Ignition Coil Pack With Pigtail Harness Connector Loom Wires / 5 Pin Plug Replacement coil specifically for Mercury Optimax engines 879984T01 339-879984T00 300-8M0077471 300-879984T01 Providing high electrical resistance, strong spark from plugs, and being resistant to corrosion and abrasion. Helps ensure proper engine performance, maximize fuel economy. Delivers more torque quicker starts instant throttle response better acceleration. Specification: Material: Metal & Plastic Size: Approx.105mm/4.1 inch Color: Black Fits For Mercury EFI 4-Stroke Models: 30/ 40/ 50/ 60 EFI For Mercury Optimax: 75/ 90/ 115/ 125/ 200/ 225/ 250 For Mercury Optimax Pro XS: 115 Pro/ 175 Pro/ 200 Pro/ 225 Pro/ 250 Pro/ For Mercury Optimax Racing: 225 XS/ 225 Sport XS/ 250XS/ 250 Sport XS/ 300XS For Mercury EFI 2-Stroke Models: 150 (2.5 EFI)/ 175 (2.5 EFI)/ 200 (2.5 EFI)/ 200 (3.0 EFI)/ 225 (3.0 EFI)/ 250 (3.0 EFI) For Mercury Racing EFI 2-Stroke: 225X/ 300X Package Includes: 1 Piece Ignition Coil Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank youï ¼ SKU: DMO0013105152038509.1 Piece Ignition Coil. Due to the difference between different monitors, the picture may not reflect the actual color of the item.