The British Seagull® Outboard Depth Adjusting Collar fastens to the drive shaft casing tube above the British Seagull Outboard Forty Series Engine Support Lug Complete, allowing the depth the outboard sits in the water to be adjusted.
This British Seagull Outboard part is suitable for Forty series only, it is not suitable for heavy duty models for example, Silver and Century Plus long shaft fixed and clutch drive and Model 110/90 engines.