ZF500 Series

ZF665A

Name: ZF665A
Brand: ZF
SKU: ZF-665A

Part Number: ZF-665A

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

ZF665A marine transmission by ZF Marine. Maximum input 1801 HP (1343 kW) at 3000 RPM. Available ratios 1.971, 2.226, 2.517 (special order: 1.525, 2.960). Rated for pleasure duty, light duty, medium duty and continuous duty service. ADR Power Systems supplies, installs, services and repairs ZF marine transmissions and stocks ZF parts.

Input Power:1801 HP (1343 kW)

View on ZF Website

Detailed Specifications

Transmission Specifications

Max Input Power:: 1801 HP (1343 kW)

Power Ratings

Duty	Ratios	hp/RPM	RPM	hp	RPM	hp	RPM	hp	Max hp	Max RPM
PD	1.525*, 1.971, 2.226	0.6002	2100	1260	2300	1380	2450	1470	1801	3000
PD	2.517	0.5217	2100	1096	2300	1200	2450	1278	1565	3000
PD	2.960*	0.4726	2100	992	2300	1087	2450	1158	1418	3000
LD	1.525*, 1.971	0.5001	2100	1050	2300	1150	2450	1225	1500	3000
LD	2.226	0.4900	2100	1029	2300	1127	2450	1201	1470	3000
LD	2.517	0.4783	2100	1004	2300	1100	2450	1172	1435	3000
LD	2.960*	0.3912	2100	822	2300	900	2450	958	1174	3000
MD	1.525*, 1.971	0.4167	1800	750	2100	875	2250	938	1250	3000
MD	2.226	0.3889	1800	700	2100	817	2250	875	1167	3000
MD	2.517	0.3778	1800	680	2100	793	2250	850	1133	3000
MD	2.960*	0.3334	1800	600	2100	700	2250	750	1000	3000
CD	1.525*, 1.971	0.3889	1600	622	1800	700	2100	817	1167	3000
CD	2.226	0.3610	1600	578	1800	650	2100	758	1083	3000
CD	2.517	0.3556	1600	569	1800	640	2100	747	1067	3000
CD	2.960*	0.3194	1600	511	1800	575	2100	671	958	3000

PD = Pleasure Duty, LD = Light Duty, MD = Medium Duty, CD = Continuous Duty. * Special-order ratio. Ratings per ZF Marine technical data sheet of 2026-04-02.

Key Features

Maximum input power: 1801 HP (1343 kW) at 3000 RPM
Gear ratios: 1.971, 2.226, 2.517
Special-order ratios: 1.525, 2.960
Duty ratings: pleasure duty, light duty, medium duty, continuous duty

Documents

ZF665A datasheet (PDF)