Chuang QIan Shift Cable Tool Socket for Mercruiser Alpha One Gen I Gen II MC-1 R MR Replace 91-12037 90110 18-9806E Feature Function -- Designed to remove and install Alpha One shift cable jackets in the bell housing. OEM Replacement -- Replaces OEM 91-12037 GLM - 90110 and Sierra 18-9806E. Fitment -- Fit for MerCruiser Sterndrives ALPHA ONE, ALPHA ONE Gen II and MC-1, R & MR. Material -- High quality steel used with Multi-process produced, finished with black oxide coated. These tools are particularly hardened for extra strength and longer service time, it's durable, rustproof and anti-corrosion. Satisfaction Guarantee -- We aims to provide excellent products and best service for customers. You can simply return it if you are not satisfied with the product. We support 30 days full refund for return and 12 month warranty. Package included 1* Shift Cable Tool Socket