Description
ZF45A Marine Gearbox for Outboard Motors, Gear Ratio 2.43:1The ZF 45 A is a compact and durable hydraulic marine gearbox. The gearbox has a gear ratio of 2.43:1.
The ZF 45 A is specifically designed for space-saving installations. The gearbox’s 8° downward-angled flange facilitates alignment of the engine and propeller shaft and enables a compact power transmission solution. The hydraulically operated gearbox and its multi-disc friction clutch packs ensure smooth and reliable directional changes.
The gearbox is suitable for both recreational and professional use, and its design also takes into account the demands of continuous operation.
Key Features
Brand: ZF
Model: ZF 45 A
Gear Ratio: 2.43:1
Construction: aluminum housing
Angle: 8° downward angle
Clutch: Hydraulically Operated Multi-Disc Clutches
Reverse: forward / reverse
Transmission housing: lightweight and durable seawater-resistant aluminum alloy
Output shaft pressure structure: designed to absorb the propeller’s thrust in both forward and reverse
Transmission weight: approximately 28 kg
Oil capacity: approximately 2.5 liters
Maximum rated speed: 5,500 rpm
Gear ratio 2.43:1
Durable construction for marine use
The ZF 45 A features a lightweight yet sturdy aluminum alloy housing. The gears are hardened and precision-ground, which improves service life and operating characteristics. The output shaft bearing assembly is designed to withstand thrust from the propeller in both forward and reverse directions.
Its compact design, hydraulic directional control, and 8° angle make the ZF 45 A a viable option for power transmission in, for example, motorboats, workboats, and other shaft-driven vessels.
Dimensions and Connections
- Length: 305 mm
- Height: approx. 270 mm
- Width: approx. 158 mm
- Weight: approx. 28 kg
- SAE 3 bell diameter: approx. 451 mm
- Output flange: 5"
- Flange bore Ø 63.5 mm
- Flange bolt circle diameter: 108 mm
- Flange angle: 8°

