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Library› Engine Room› Propulsion Gearbox› Propulsion Gearbox / Reduction Gear
Propulsion Gearbox

Propulsion Gearbox / Reduction Gear

A reduction gear exists because diesel and gas turbine engines run efficiently at speeds far higher than a propeller can use without cavitating — the gearbox is what lets the engine and the propeller each turn at the speed that suits them.

1,717models
46manufacturers
500–8,000 kWtypical power
10 Oct 2026last updated
Models

Models in this type.

Models 701 to 800 of 1,717 in Propulsion Gearbox / Reduction Gear. Every row links to full specifications, documents and service notes.

D16-0045M 0 8 3 2 5 Hanla IMSIS3 ReintjesLAF 6766 Rossi2EB RenkARSL-4000 3.5:1 ZF Friedrichshafen16S251IT ZF Marine280 IV Leroy-SomerMub 3232/Mub 3233 D16-0045M 0 9 2 1 3 Hanla IMSIS4 ReintjesLAF 7740 Rossi2EL RenkARSL-4000 4.5:1 ZF Friedrichshafen16S2520 ZF Marine280-1 A Leroy-SomerMub 3432/Mub 3433 D16-0045M 0 9 2 1 5 6 Hanla IMSIS5 ReintjesLAF 7750 Rossi2EL 1060 + 2I 4000/3EL 1500 + 2I 280 RenkARSL-4000 6:1 ZF Friedrichshafen16S2720 ZF Marine286 A Leroy-SomerMub 3433 i 106 BT H B5 AP D16-0045M 0 9 3 1 8 0 Hanla IMSIS7 ReintjesLAF 7760 Rossi2EL 1500 + CI 4000/3EL 1500 + CI 280 RenkARSL-500 3.5:1 ZF Friedrichshafen8S1110 ZF Marine286 IV/14 301-1 Leroy-SomerMub 3633 i 34.4 R H B3 D16-0045M 1 0 2 1 4 Hanla IMSIS8 ReintjesLAF-2346-7760 Rossi2EL 2120 + 2I 4500/3EL 2120 + 2I 320 RenkARSL-500 4.5:1 ZF Friedrichshafen8S1111 ZF Marine30000A Leroy-SomerMub 3832/Mub 3833 D16-0045M 1 0 3 1 5 Hanla IMSIS9 ReintjesRN 1565 Rossi2EL 2120 + CI 4500/3EL 2120 + CI 320 RenkARSL-500 6:1 ZF Friedrichshafen8S151 ZF Marine30000V Leroy-SomerOt 3232 - Montage intégré MI/Ot D16-0045M 1 3 3 1 1/M 1 3 4 1 2 Hanla IMSIW3 ReintjesWAF 10000kW 2:1 Rossi2EL 3000 + 2I 5000/3EL 3000 + 2I 360 RenkARSL-5000 3.5:1 ZF Friedrichshafen8S151IT ZF Marine3000A Leroy-SomerOt 3232 Integral mounting MI D16-0045M 1 3 3 1 6 Hanla IMSIW4 ReintjesWAF 10000kW 3:1 Rossi2HRAL5010 RenkARSL-5000 6:1 ZF Friedrichshafen8S1620 ZF Marine3000V Leroy-SomerOt 3433 - Montage intégré MI/Ot D16-0045M02 2/M03 Hanla IMSIW6 ReintjesWAF 10000kW 4:1 Rossi2I RenkARSL-6000 2.5:1 ZF Friedrichshafen8S1621 ZF Marine301-1 A Leroy-SomerOt 3433 Integral mounting MI ReintjesWAF 10000kW 5:1 Rossi2IRAL5010 RenkARSL-6000 3.5:1 ZF Friedrichshafen8S181 ZF Marine305-3 A Leroy-SomerOt 3533 - Montage intégré MI ReintjesWAF 10000kW 6:1 Rossi2IV 80 - 14 × 160 71 C RenkARSL-6000 4.5:1 ZF Friedrichshafen8S181IT ZF Marine3060 A/ZF 3155 A Leroy-SomerOt 3633 Integral mounting MI ReintjesWAF 1000kW 2:1 Rossi2IV 80 - 19 × 200 80 A RenkARSL-6000 6:1 ZF Friedrichshafen8S1820 ZF Marine325/ZF 55 Leroy-SomerOt 3733 - Montage intégré MI/Ot ReintjesWAF 1000kW 3:1 Rossi2Y RenkARSL-750 2.5:1 ZF Friedrichshafen8S1821 ZF Marine35000A Leroy-SomerOt 3733 Integral mounting MI ReintjesWAF 1000kW 4:1 Rossi3 100LA RenkARSL-750 3.5:1 ZF Friedrichshafen8S1921
Related types

Also in Propulsion Gearbox.

The other equipment types in this category.

Reduction Gearbox
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Frequently asked

Three things people ask first.

Is Propulsion Gearbox / Reduction Gear data free?

Yes. Every model page, every guide and every datasheet for this type is readable without an account. An account adds saved searches and requests, nothing is taken away.

My model is missing — what now?

Send us the nameplate. We identify it by hand, add it to the library, and if you need a part or a service, the request is already on our desk.

Can you source a Propulsion Gearbox / Reduction Gear part?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.