Lewmar 185TT 4.0 kW Gen 2 Thruster vs Lewmar 185TT 5.0 kW Gen 2 Thruster

Last updated: November 9, 2026

The Lewmar 185TT 5.0 kW Gen 2 Thruster rates 3.1 among over 75 kgf bow thrusters; the Lewmar 185TT 4.0 kW Gen 2 Thruster rates 3.0 among 45 to 75 kgf ones. The Lewmar 185TT 4.0 kW Gen 2 Thruster costs $520.66 less ($3,099.99 vs $3,620.65).

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Lewmar 185TT 4.0 kW Gen 2 Thruster vs Lewmar 185TT 5.0 kW Gen 2 Thruster

Scores side by side

These two sit in different thrust classes (over 75 kgf and 45 to 75 kgf), and each is scored against the reference points for its own class, so a rating says how well each does among its own thrust peers. How we rank explains each factor.

Factor weightLewmar 185TT 5.0 kW Gen 2 ThrusterLewmar 185TT 4.0 kW Gen 2 Thruster
Overall rating3.1/53.0/5
Value 40%62 $44.15 per kgf ($3,620.65, 82 kgf)56 $47.69 per kgf ($3,099.99, 65 kgf)
Efficiency 25%34 16.4 kgf per kW (82 kgf, 5 kW)32 16.2 kgf per kW (65 kgf, 4 kW)
Run time 25%33 3 minutes continuous33 3 minutes continuous
Weight 10%35 3 kgf per kg (82 kgf, 27 kg)42 3.2 kgf per kg (65 kgf, 20 kg)

Specifications

Lewmar 185TT 5.0 kW Gen 2 ThrusterLewmar 185TT 4.0 kW Gen 2 Thruster
Thrust
Rated thrust82 kgf65 kgf
StyleTunnelTunnel
PropellersSingleSingle
Electrical
Supply12 V12 V
Motor5 kW4 kW
Current draw480 A-
Continuous run3 min3 min
Build
Tunnel diameter185 mm185 mm
Weight27 kg (59 lb)20 kg (43 lb)

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