Marine Hinge Pin Tool 9178310 Replacement for Mercruiser Alpha One Bravo One Two Three1. Part Number: According to the original factory specifications, replacing reference part number is 9178310.2. Applicable Model: Marine hinge pin tool, replacement for Mercruiser Alpha One, One Generation Two; Replacement for Mercruiser Bravo One, Two, Three, R, MP, MC1.3. Function: This hinge pin tool is used on the hinge pin bolt and separates the housing from the gimbal ring.4. Durable Material: Made of superior quality steel material, strong wear resistance, rugged and durable.5. Professional Installation: Professional installation is highly recommended, according to the original factory specifications, perfect match to the original.Specification:Item Type:Marine Hinge Pin ToolMaterial: SteelColor: BlackReplacement Part Number:91-78310Fitment:Replacement for MercruiserAlpha OneReplacement for MercruiserAlpha One Generation TwoReplacement for Mercruiser Bravo One, Two, Three, R, MP, MC-1Package List:1 xMarine Hinge Pin ToolNote: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