Boat Thruster Guide

What to buy, what it costs, what it takes to fit

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Discontinued thruster

Sleipner SEP150/215T-24V (discontinued): specs, manual and parts

The Sleipner SEP150/215T-24V is a tunnel thruster. The motor sits inside the boat and turns a propeller in a tube through the hull. Sleipner has discontinued it. Its own product page said so when we read it on 1 October 2026.

This page stays up for the owners still running one. It holds the published figures, the part numbers, the manual and the last price we read. You will not find the unit in the thruster finder, the tool here that matches a unit to your boat, or on the compare page. If you need a new thruster, start with either of those.

The published figures

The Sleipner SEP150/215T-24V as Sleipner and the dealer listed it. Nothing here is our estimate.
TypeTunnel, fixed mount
Thrust401 lb (182 kgf)
As the maker printed itThrust at 24V: 182kg / 401lbs; at 21V: 150kg / 331lbs
Voltage24 V
Tunnel diameter215 mm
Maker’s boat length44 to 64 ft
Part number 88347424V
Last price we read $6,885equipment only, defender.com, 28 August 2026. It may no longer be for sale there.
Manual Sleipner’s manual for it

Service parts

These are Sleipner’s own part numbers for the parts an owner replaces, where we could find them: the pin that drives the propeller, the propeller, the anode, the brushes, the switch gear, the fuse and the motor. We read them on 11 October 2026. The last column says how we know each one fits this model. Give the dealer your thruster’s serial number from its label when you order.

Service parts for the Sleipner SEP150/215T-24V, with Sleipner’s part numbers. A part we know only by its name needs your serial number to confirm.
Part Part number Sleipner’s name for it How we know it fits
Drive pin (the pin that drives the propeller) 9 1241 Drive pin propeller SE120-300 By the part’s name only. Confirm with your serial number.Sleipner describes it as fitting SE120 to SE170 units. This model is not on its list.
Propeller 9 1261 Propeller SE120/150 5bl Q-Prop, 215 mm By the part’s name only. Confirm with your serial number.
Anode 20 1180 A Anode kit (Al-Zn-In), for 215/300 mm gear legs By the part’s name only. Confirm with your serial number.
Anode, zinc version 20 1180 Anode, zinc SE120/SE130/SE170/SP155/220/285 By the part’s name only. Confirm with your serial number.
Gear leg gasket 9 1355 Gasket for gearleg/tunnel SE120/150 By the part’s name only. Confirm with your serial number.
Motor brush kit BRUSH-14K Brush kit SP155 + SE150/170 By the part’s name only. Confirm with your serial number.Sleipner asks for the thruster’s serial number with every brush kit order.
Solenoid (the motor switch) 1013702 Solenoid SE150/170/210/250/300 Sleipner’s parts page lists this model
Main fuse ANL 500 Recommended fuse A Sleipner’s page for this modelThe rating on Sleipner’s page for this model. The fuse holder is SMANLHOLD.
Replacement motor 9 0105 24 SEP150 24V Sleipner’s parts page lists this model

What the manual and listings say

PRO means proportional: the joystick sets how hard it pushes. The 2026 catalog says to expect close to continuous run time at half power or less. Twin props in a 215 mm tunnel, 24 V only, with the SE150's motor. It is for boats of 44 to 64 ft, depending on weight and windage. It is rated 182 kg at 24 V and 150 at 21.

The page rates the brushed motor for two to three minutes' running at 20 C. The control panel switches itself off after about six minutes unused. Sleipner's FAQ wants the tunnel at least three quarters of its diameter below the surface, never less than half.

Replacement and close alternatives

The replacement: Sleipner E150 eVision. Sleipner’s own page for this model links it as the replacement.

These are Sleipner’s nearest current sizes by thrust, in any of its lines.

Other makers’ current units of the same style, for the same end, within a quarter of its published thrust:

If you need a new one