ID
977035
$ 888.35
1-2 weeks delivery time
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The Vetus SDKIT250 Stern Thruster Extension Kit (article: SDKIT250) is designed for stern thruster tunnels with a diameter of 250 mm, ensuring that both tunnel openings remain submerged below the waterline to prevent air suction and thrust loss. The kit includes two GRP deflector shells and stainless steel AISI 316 fastenings for easy retrofitting on boats with shallow stern draft or transom-mounted equipment limiting proper water flow. Key dimensions include a 303 mm extension length per shell, 1066 mm total shell and tunnel length, and a minimum 153 mm required depth from waterline to tunnel center.
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Vetus SDKIT250 Stern Thruster Extension Kit for 250 mm Tunnel Diameter
The Vetus SDKIT250 extension kit is engineered to ensure optimal stern thruster performance on shallow draft boats, preventing air intake into the tunnel by extending the tunnel openings deeper below the waterline. This enhances water flow and maintains thrust efficiency even when the thruster cannot be installed sufficiently low within the hull. The kit includes two GRP shells and stainless steel AISI 316 fastenings, suitable for retrofitting on existing systems. Ideal for vessels with transom-mounted obstructions and houseboats with shallow bow and stern drafts.
Key Features
- Ensures propeller operates well below the waterline for maximum thrust
- Prevents air suction and associated thrust loss
- GRP shell construction with stainless steel (AISI 316) fastenings
- Easy retrofit installation on existing stern thruster systems
- Optimized flow around transom-mounted equipment
- Designed specifically for shallow draft vessels
Specifications
Compatible Stern Thruster Tunnel Diameter 250 mm Extension Length per Shell (B) 303 mm Total Length of Shell and Tunnel (C) 1066 mm Minimum Required Depth from Waterline to Tunnel Center (X) 153 mm Size A 28 mm Size D 360 mm Size E 370 mm Diameter F 250 mm Kit Type Stern thruster extension kit for shallow draft boats Manufacturer Vetus
The SDKIT250 is recommended when the stern thruster cannot be mounted deep enough within the hull or where transom equipment obstructs the tunnel exits, ensuring reliable and uninterrupted thrust performance.
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