ZFW Series

ZFW650

Name: ZFW650
Brand: ZF
SKU: ZF-W650

Part Number: ZF-W650

Quote Required: This product requires a custom quote. Contact us for pricing and availability.

ZFW650 marine transmission by ZF Marine. Maximum input 898 HP (670 kW) at 2600 RPM, medium duty. Available ratios 4.057, 5.138, 5.593 (special order: 3.605, 4.531, 6.417). Rated for medium duty and continuous duty service. ADR Power Systems supplies, installs, services and repairs ZF marine transmissions and stocks ZF parts.

Input Power:898 HP (670 kW)

View on ZF Website

Detailed Specifications

Transmission Specifications

Max Input Power:: 898 HP (670 kW)

Power Ratings

Duty	Ratios	hp/RPM	RPM	hp	RPM	hp	RPM	hp	Max hp	Max RPM
MD	3.605, 4.057, 4.531, 5.138, 5.593	0.3454	1800	622	2100	725	2300	794	898	2600
MD	6.417*	0.3146	1800	566	2100	661	2300	724	818	2600
CD	3.605, 4.057, 4.531, 5.138, 5.593	0.3335	1600	534	1800	600	2100	700	867	2600
CD	6.417*	0.2823	1600	452	1800	508	2100	593	734	2600

MD = Medium Duty, CD = Continuous Duty. * Special-order ratio. Free Standing Installation available. Ratings per ZF Marine technical data sheet of 2026-04-02.

Key Features

Maximum input power: 898 HP (670 kW) at 2600 RPM, medium duty
Gear ratios: 4.057, 5.138, 5.593
Special-order ratios: 3.605, 4.531, 6.417
Duty ratings: medium duty, continuous duty

Documents

ZFW650 datasheet (PDF)