ZF85IV
ZF25–85 Series

ZF85IV

Part Number: ZF-85IV

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

ZF85IV marine transmission by ZF Marine. Maximum input 822 HP (613 kW) at 5500 RPM, pleasure duty (gasoline). Available ratios 1.644, 2.008, 2.493. Rated for pleasure duty, pleasure duty (gasoline), 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:822 HP (613 kW)

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View on ZF Website

Detailed Specifications

Transmission Specifications

Max Input Power:
822 HP (613 kW)

Power Ratings

DutyRatio (A position)Ratio (B position)hp/RPMRPMhpRPMhpRPMhpMax hpMax RPM
PD1.6441.6380.14942800418300044833004935233500
PD2.0081.9960.14942800418300044833004935233500
PD2.4932.4680.14942800418300044833004935233500
PD-G1.6441.6380.14942800418300044833004938225500
PD-G2.0081.9960.14942800418300044833004938225500
PD-G2.4932.4680.14942800418300044833004938225500
LD1.6441.6380.13992100294250035028003924903500
LD2.0081.9960.13992100294250035028003924903500
LD2.4932.4680.13992100294250035028003924903500
MD1.6441.6380.11922100250250029828003344173500
MD2.0081.9960.11922100250250029828003344173500
MD2.4932.4680.11242100236250028128003153933500
CD1.6441.6380.09741800175210020524002343123200
CD2.0081.9960.09741800175210020524002343123200
CD2.4932.4680.09331800168210019624002242993200

PD = Pleasure Duty, PD-G = Pleasure Duty (gasoline), LD = Light Duty, MD = Medium Duty, CD = Continuous Duty. Ratings per ZF Marine technical data sheet of 2026-04-02.

Key Features

  • Maximum input power: 822 HP (613 kW) at 5500 RPM, pleasure duty (gasoline)
  • Gear ratios: 1.644, 2.008, 2.493
  • Duty ratings: pleasure duty, pleasure duty (gasoline), light duty, medium duty, continuous duty

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