Osapian 45
A longer 90 cm shaft and 45 lbs of thrust — for boats up to 4.5 metres.
- Thrust
- 45lbs
- Voltage
- 12V
- Power
- 540W
Suggested retail price
940 PLN

01 / Overview
A longer 90 cm shaft for boats up to 4.5 m — 45 lbs of thrust at 540 W. The 2-blade Ø23 cm prop spins up to 1380 rpm, drawing no more than ~45 A.
A 5-forward/3-reverse gear switch with silver-plated contacts keeps the motor running reliably for years.
The telescoping tiller (21–35 cm) tilts through 110° of travel: 20° up, 90° down for transport.
The universal transom bracket offers 10 positions, adjusts along the full shaft length, and fits transoms up to 68 mm thick.
02 / In the box & options
- ▸5/3 gear switch with silver-plated contacts
- ▸5-LED battery gauge
- ▸Telescoping tiller, 110° tilt
- ▸Universal transom bracket (10 positions)
- ▸2-blade Ø23 cm prop with guard fin
04 / Motor construction

- 01
LED gauge
5-LED battery charge indicator on a 12 V scale.
- 02
Telescopic tiller
Extends 21–35 cm, tilts through 110°: 20° up, 90° down.
- 03
Tiller lock
Holds the tiller at working angle and folds it for transport.
- 04
Gear switch
5 forward / 3 reverse gears, silver-plated contacts built to last.
- 05
Motor depth adjustment
Depth collar — stepless adjustment along the full shaft length.
- 06
Transom bracket
10 working positions, fits transoms 26–68 mm thick.
- 07
Aluminium shaft
Anodised aluminium — fresh and salt water ready.
90 cm, Ø28 mm
- 08
Brushed motor
Sealed drive unit with quiet operation.
~50 dB
- 09
Propeller
Blade profile matched to the thrust of the model.
2-blade Ø 23 cm
- 10
Fin
Shields the propeller from bottom contact and weeds.
Shaft length vs submersion
| Shaft length | Effective submersion |
|---|---|
| 90 cm | 73 cm |
Effective submersion per manufacturer data: shaft length − 17 cm.
05 / Pairs well with

Haswing motor carry bag
Code: HW-B90
View accessory →
80A power switch
Code: 59928
View accessory →
Fuse holder
Code: 10AGU108
View accessory →
Propeller (Osapian type)
Code: 24000236
View accessory →
3-blade propeller (Osapian replacement)
Code: HO-3PS
View accessory →
Transom bracket
Code: 24000238
View accessory →06 / Gallery
07 / FAQ
Which battery fits the Osapian 45?+
The recommended battery is Min. 80 Ah Gel, Li-ion, LiFePO4. For a precise runtime estimate at a given capacity, use the battery calculator.
Which fuse should I use?+
This motor draws up to ~45 A at full throttle, so the recommended fuse rating is 55 A (AGU-type or resettable) — in practice, round up to the nearest size available.
How do I choose the right shaft length for my boat?+
This model ships with a 90 cm, Ø28 mm shaft. For the general sizing rule (transom or gunwale height → shaft length) see the sizing table on this page — Haswing motors also offer depth adjustment along the full shaft length, so a small mismatch is rarely a dealbreaker.
Does the motor run in salt water?+
Yes — the entire Haswing range runs in both fresh and salt water. After a season in salt water, rinse the shaft and prop with fresh water.
Osapian 45
940 PLN






