Next-day UK delivery available
Order before 3pm — from £3.95
Same-day collection
Available from our North Shields store
Free returns within 30 days
Unused & original packaging
Trem
Trem Outboard Stabiliser/Doel Fin
Improves stability, reduces bow rise, and helps your boat plane faster and more efficiently.
£22.95
Tax included. View shipping policy
Next-day UK delivery available — order before 3pm
Same-day collection from our North Shields store
Expert advice — call 0191 414 0065
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The Trem Outboard Stabiliser (Doel Fin) is a hydrofoil attachment that fits to the cavitation plate of your outboard engine. It helps lift the stern, push the bow down, and improve overall ride stability—especially at low speeds or during acceleration.
Key benefits
- Reduces porpoising (bow bouncing) for a smoother ride
- Helps boats plane faster and at lower speeds
- Improves overall stability and handling in turns
- Can reduce bow rise during acceleration
- Includes stainless steel fixings for marine durability
- Suitable for a wide range of outboards (typically 4–50HP and above versions)
Ideal for
- Small boats struggling to get onto the plane
- Inflatable dinghies and RIBs
- Boats that porpoise at cruising speed
- Engines used in choppy or variable conditions
Pro tip: If your boat struggles to plane, pairing a Doel Fin with correct engine trim and load distribution often delivers a much bigger improvement than upgrading propellers alone.
Eliminates cavitation and porpoising, forces stern up and keeps bow down. Includes stainless steel fixings. Available to suit 4-50HP and over 50HP outboards.
Next-day UK delivery
Available on most items — order before 3pm. From £3.95.
Same-day collection — North Shields
Order online or call ahead — collect from our North Shields store today.
Free delivery over £100
Free standard delivery on all qualifying orders to UK mainland addresses.
Returns — 30 days
Unused, original packaging. Full returns policy →
Not sure which product you need? Call our team on 0191 414 0065
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Why buy from Marine Chandlery?
- UK marine specialists, based in North Shields
- Next-day UK delivery available
- Same-day collection from our store
- Expert advice before and after purchase
- Carefully selected marine-grade products
- Secure checkout & trusted payment options
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