General description Perfect match for Mercury engines. This ignition coil is compact and easy to apply and use, ensuring a hassle-free installation. Technical specifications Replaceable part numbers: 300-8M0077471, 300-879984T01, 339-879984T00 Color: Black Material: ABS Measurement allowed error: +/- 1-3 cm Compatibility and accessories Fits Mercury engines from 2004 to present Compatible with Mercury EFI 4-Stroke Models: 30/40/50/60 EFI Compatible with Mercury Optimax: 75/90/115/125/200/225/250 Compatible with Mercury Optimax Pro XS: 115 Pro/175 Pro/200 Pro/225 Pro/250 Pro Compatible with Mercury Optimax Racing: 225 XS/225 Sport XS/250 XS/250 Sport XS/300 XS Compatible with 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) Compatible with Mercury Racing EFI 2-Stroke: 225X/300X Installation Easy installation process Usage Designed for use in various Mercury engine models Other information