Ignition Coil 300-8M0077471 300-879984T01 339-879984T00 for Mercury Optimax Compact design Easy to install and use Replacement part numbers: 300-8M0077471, 300-879984T01, 339-879984T00 Fitment: This ignition coil is compatible with Mercury engines from 2004 to present, including: - Mercury EFI 4-Stroke Models: 30/40/50/60 EFI - Mercury Optimax: 75/90/115/125/200/225/250 - Mercury Optimax Pro XS: 115 Pro, 175 Pro, 200 Pro, 225 Pro, 250 Pro - Mercury Optimax Racing: 225 XS, 225 Sport XS, 250 XS, 250 Sport XS, 300 XS - 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) - Mercury Racing EFI 2-Stroke: 225X, 300X Color: Black Material: ABS Package Includes: 1 x Ignition Coil Note: This package includes only the items listed above. Other accessories are not included. Due to lighting effects and monitor settings, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.