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D85L165 Water cooling 125kv 20kw Brushless Inrunner Electric Motor

Built for torque-focused marine drive systems, the D85L165-WC-125Kv water-cooled motor leverages its 12N10P design to deliver the series' highest torque of 30.9 N·m, alongside 16.5 kW of power and speeds up to 12,600 RPM. It is tailored for applications where maximum thrust and pulling power are critical, such as in larger jet pumps or heavy-duty marine engines.
This IP63-rated motor is configured for installation in a sealed chamber, utilizing water-cooling to manage heat during sustained high-load operation, ensuring durability and consistent performance.

• Peak Power: 16.5 kW • Peak Torque: 30.9 N·m • Max Speed: 12,600 RPM
• Protection Rating: IP68 • Weight: 3.9 kg

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System Types:
All
Kv:
100-150
Controller Type:
Sensorless
Maximum Voltage:
60V
Maximum Continuous Current:
< 120A

Water-Cooled Motor Brushless Motor Inrunner Motor Electric Motor

Features

Specification

Dyno Tested Data

Dimension

Key Features

Robust & durable black anodizing aluminum alloy shell
Class-leading torque output
Quiet, minimal-vibration operation
Up to 91% motor efficiency
Water-cooling for optimal thermal control
Compact and high-power-density design
Durable double-sealed bearings
SS316 shaft against corrosion and stress

Item	Specification
Model	D85L165-125
Working Voltage Range	12-24S (38-100.8V)
Max. Free Speed	12,600 RPM
Speed Constant (Kv)	125
Unloading Current (at 8.4V)	3.0 A
Torque Constant (Kt)	0.09657 N·m/A
Max. Output Power	16.5 kW
Peak Torque	30.9 N·m
Peak Current	340 A
Cont. Working Current	150 A
Max. Motor Efficiency	91.0%
Weight	3.9 kg
Configuration	12N/10P
Dimension (Dia. x Length)	Ø85 x L165 mm
Shaft Output	Ø12 x L30 mm
Insulation Voltage & Leak Current	6AWG x 150cm
Lead Wires Extension	10mm Golden Plug
Life Span	10,000 H
Max. Working Temperature	120°C
Important Note	Motor must be submerged in water when put in use.

Auto Testing at 125KV-60V
Item No.	C_Voltage (V)	C_Current (A)	C_Input Power(W)	M_Voltage (V)	M_Current (A)	M_Input Power(W)	M_Efficiency (%)	M_Speed (rpm)	M_Torque (N*m)	M_Output Power(W)
0	59.799999	66.379997	3965.899902	43.849998	58.82	3900.179932	92.454361	6424	5.359995	3605.886475
1	59.669998	91	5425.319824	43.82	83.459999	5317	92.748177	6084	7.739995	4931.42041
2	59.580002	109.879997	6541.970215	43.849998	103.220001	6380.910156	91.914406	5846	9.579995	5864.975586
3	59.509998	125.199997	7444.700195	43.889999	119.879997	7238.029785	91.226959	5660	11.139996	6603.034668
4	59.43	144.289993	8566.160156	43.990002	141.369995	8293.959961	89.809494	5463	13.019996	7448.763184
5	59.330002	163.809998	9707.879883	44.07	164.059998	9361.169922	88.197044	5270	14.959995	8256.275391
6	59.200001	193.699997	11448.7002	44.200001	199.619995	10962.75977	85.512978	5001	17.899996	9374.582031
7	59.139999	207.320007	12238.62012	44.23	215.899994	11672.78027	83.987892	4886	19.159996	9803.72168
8	59.02	235.160004	13841.91992	44.32	249.899994	13099.91016	80.736282	4667	21.639996	10576.38086
9	58.93	261.820007	15292.04981	44.369999	278.720001	14282.91992	77.387184	4499	23.459995	11053.14941