Features: 1.Fitment: Fit for Mariner 45 HP engines 1981?1989; Fit for Mariner 50 HP engines 1976?1985; Fit for Mariner 80 HP engines 1978?1979; Fit for Mariner 85 HP engines 1976?1977. 2.OE Number: Replacing manufacturer part numbers for reference are 134?6452, 73372A1, 73410A 1, 76681A1, 77000A2, 96452A1, 96452A4, and 96452A5 3.High Performance: Outboard engine CDI trigger has high sensitivity and stable performance, designed to replace the old or damaged triggers. 4.Durable Material: CDI electronics trigger is made of pure copper coil and wearproof ABS material to ensure long lasting durable. 5.Safe and Dependable: CDI electronics 4 cylinder trigger has been extensively tested, with strong reliability, making sure safety use. Specification: Item Type: CDI Electronics Outboard Trigger Material: Copper + ABS OE: 134-6452, 73372A1, 73410A 1, 76681A1, 77000A2, 96452A1, 96452A4, and 96452A5 Fitment: Fit for Mariner 45 HP engines 1981-1989 Fit for Mariner 50 HP engines 1976-1985 Fit for Mariner 80 HP engines 1978-1979 Fit for Mariner 85 HP engines 1976-1977 Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!