---
product_id: 1961774
title: "Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211)"
brand: "davis instruments"
price: "RM425"
currency: MYR
in_stock: true
reviews_count: 12
category: "Davis Instruments"
url: https://www.desertcart.com.my/products/1961774-davis-instruments-doel-fin-outboard-outdrive-stabilizer-black-ss-sms
store_origin: MY
region: Malaysia
---

# 30% fuel savings Faster planing speed 15-min install Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211)

**Brand:** davis instruments
**Price:** RM425
**Availability:** ✅ In Stock

## Summary

> 🚤 Glide faster, save fuel, and own the water with Doel-Fin!

## Quick Answers

- **What is this?** Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211) by davis instruments
- **How much does it cost?** RM425 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/1961774-davis-instruments-doel-fin-outboard-outdrive-stabilizer-black-ss-sms)

## Best For

- davis instruments enthusiasts

## Why This Product

- Trusted davis instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fuel Efficiency Boost:** Slash fuel consumption by up to 30% and cut down costly refuel stops.
- • **Universal Compatibility:** Fits nearly all outboard and stern drive motors 5HP+, excluding Volvo Penta outdrives.
- • **DIY Friendly Installation:** Simple 15-minute setup with included hardware—no pro needed, no downtime.
- • **Rapid Planing Performance:** Get on plane faster with reduced bow rise for smoother, quicker acceleration.
- • **Aeronautical Engineering Precision:** Designed by an aeronautical engineer for optimized hydrofoil stability and control.

## Overview

The Davis Instruments Doel-Fin is a high-strength plastic hydrofoil engineered to improve boat performance by reducing bow rise, increasing fuel efficiency by up to 30%, and enabling faster planing speeds. Easy to install in 15 minutes, it fits most outboard and stern drive motors 5HP and up, delivering smoother rides and enhanced control for water sports enthusiasts and casual boaters alike.

## Description

Doel-fin is the original hydrofoil developed by an aeronautical engineer to improve overall performance on all boats with outboard motors or outdrive units. Molded in two pieces of guaranteed unbreakable, High-strength plastic, each foil is designed to flex independently to absorb shock. The positive effects include greater stability, consistent planning at lower RPM, faster out-of-the hole performance, better gas mileage, steadier turns, higher top-end speeds and lower bow rise at all speeds. Doel-fin is designed for use with small motors, big motors and inflatable dingies.

Review: Great for the value. Very easy to install. - Easy installation. Very well worth the money. It does everything exactly what was supposed to do. It reduces the bow of the boat getting a faster response time to plane on top speed, does get a noticeable difference of greater gas consumption reduced to a fuel increase- leading to fewer gas trips. The biggest difference between having this versus not having it is how much more smoothly the ride is on top speed, with very little usage of the trim in addition to the planning. To install it takes less than an hour. Very easy to install yourself. Take it out of the box and place it where it should be, make sure measure twice to drill once. Drill the holes with the fins on it, as it has pre-drilled holes to guide it. Place the nuts and bolts on, tighten it snug, but not to over tighten it. Depends on the make and model lower unit to install it really doesn't take long to get it done. I had to remove the prop on my 140 HP I/O. Looks great and does an amazing job for my boat. Great for water tubers and skier's that appreciate it for a faster out of the hole experience. I highly recommend it. Worth every single penny, does pay for itself.
Review: Excellent overall improvement - Installed in about an hour. I took my time doing measurements and making sure I had it right. Took it to the lake the next day. I have a 2016 Tracker TF with 60 hp Mercury 4 stroke. Amazing difference. Boat is on plane much faster now. Actually can increase rpms to get speed up, which i could never do before because boat would porpoise before I could be max capability out of it. Now it planes fast, trims out easily allowing motor rpm increase and resulted in approx 2-3 mph speed increase. This is a cheap performance increase that really does help. Highly recommend this, or any hydrofoil device.

## Features

- Maintain lower planning speeds
- Increases fuel efficiency and reduce bow rise
- Promotes fast out-of-the-hole times
- Designed by an aeronautical engineer, Doel Fin is a true hydrofoil
- Simple 15-minute installation, hardware included
- Doel-Fin fits all newer outboard and stern drive motors from 5 horsepower, except Volvo Penta outdrives
- Doel-Fin improves overall performance - even on boats with well designed hulls
- Save up to 30% on fuel consumption
- Faster out-of-the-hole for happier water skiers and wake boarders.
- Increase performance and safety; Sport type: Boating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0014490TS |
| Best Sellers Rank | #407,704 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #364 in Outboard Boat Motors |
| Brand | Davis Instruments |
| Brand Name | Davis Instruments |
| Color | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,476) |
| Date First Available | June 20, 2006 |
| Engine Type | Outboard Motor |
| Fuel Type | Natural Gas |
| Global Trade Identification Number | 00011698001859 |
| Included Components | Davis Doel-Fin Hydrofoil f/Outboards & Outdrives |
| Item Dimensions LxWxH | 14 x 16 x 11 inches |
| Item Package Dimensions L x W x H | 11.42 x 9.29 x 1.65 inches |
| Item Weight | 0.17 Pounds |
| Manufacturer | Davis Instruments |
| Material | high-strength plastic |
| Model Name | Davis Doel-Fin Hydrofoil f/Outboards & Outdrives |
| Mounting Type | lower unit mount |
| Number of Items | 1 |
| Operation Mode | automatic |
| Package Weight | 0.93 Kilograms |
| Part Number | 440 |
| Recommended Uses For Product | For Inflatable Boats |
| Size | 4.5-inch Combi |
| Sport Type | Boating |
| Suggested Users | unisex-adult |
| UPC | 709618196869 772259101288 011698001859 012300703536 400019371199 611104329418 |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Davis Instruments
- **Color:** black
- **Engine Type:** Outboard Motor
- **Item Weight:** 0.17 Pounds
- **Material:** high-strength plastic

## Images

![Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211) - Image 1](https://m.media-amazon.com/images/I/51uF06moNWL.jpg)
![Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211) - Image 2](https://m.media-amazon.com/images/I/61MvwftSnEL.jpg)
![Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211) - Image 3](https://m.media-amazon.com/images/I/71aodGjOoyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for the value. Very easy to install.
*by B***. on August 20, 2020*

Easy installation. Very well worth the money. It does everything exactly what was supposed to do. It reduces the bow of the boat getting a faster response time to plane on top speed, does get a noticeable difference of greater gas consumption reduced to a fuel increase- leading to fewer gas trips. The biggest difference between having this versus not having it is how much more smoothly the ride is on top speed, with very little usage of the trim in addition to the planning. To install it takes less than an hour. Very easy to install yourself. Take it out of the box and place it where it should be, make sure measure twice to drill once. Drill the holes with the fins on it, as it has pre-drilled holes to guide it. Place the nuts and bolts on, tighten it snug, but not to over tighten it. Depends on the make and model lower unit to install it really doesn't take long to get it done. I had to remove the prop on my 140 HP I/O. Looks great and does an amazing job for my boat. Great for water tubers and skier's that appreciate it for a faster out of the hole experience. I highly recommend it. Worth every single penny, does pay for itself.

### ⭐⭐⭐⭐⭐ Excellent overall improvement
*by B***. on May 31, 2018*

Installed in about an hour. I took my time doing measurements and making sure I had it right. Took it to the lake the next day. I have a 2016 Tracker TF with 60 hp Mercury 4 stroke. Amazing difference. Boat is on plane much faster now. Actually can increase rpms to get speed up, which i could never do before because boat would porpoise before I could be max capability out of it. Now it planes fast, trims out easily allowing motor rpm increase and resulted in approx 2-3 mph speed increase. This is a cheap performance increase that really does help. Highly recommend this, or any hydrofoil device.

### ⭐⭐⭐⭐⭐ Works great on my 14' boat with a 15hp Mercury!
*by W***L on July 7, 2020*

Works amazingly well on my aluminum fishing boat! I noticed it immediately when I twisted the throttle. It planes at a much lower speed, allowing the boat to get out of the hole when loaded with people and gear. It also seems much more stable when passing over wakes. True 15 minute install on my 1999 Mercury 15hp outboard. Great product at a great price!

## Frequently Bought Together

- Davis Instruments Doel-Fin Outboard/Outdrive Stabilizer - Black (SS-SMS-5001211)
- Seachoice ProFlo Universal Round Motor
- Attwood 7524A7 Snap-Handle Drain Plug,

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-05*