ZF 3312307005 – Gearbox Oil Cooler for ZF 45, 63 & 85 Marine Transmissions, 3/8" BSP, 32mm Water Ports

ID 1232516

1-2 weeks delivery time

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The ZF 3312307005 is a gearbox oil cooler for ZF 45, 63, and 85 marine gearboxes. It features 3/8" BSP oil ports and 32mm ID water ports, supports up to 250°F and 150 psi, and dissipates up to 20,000 BTU/hr. Made from corrosion-resistant aluminum with stainless steel fittings, it ensures effective cooling, extended gearbox life, and reliable performance in marine conditions.

Description
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ZF 3312307005 – Gearbox Oil Cooler for ZF 45, 63 & 85 Marine Transmissions, 3/8" BSP, 32mm Water Ports

The ZF 3312307005 Gearbox Oil Cooler is engineered to provide efficient thermal management for ZF 45, ZF 63, and ZF 85 marine transmissions. Designed for optimal heat dissipation, this cooler helps prevent oil overheating and degradation, protecting gearbox components and extending system longevity. It features 3/8" BSP oil ports and 32mm internal diameter water port end caps to support smooth oil and water flow under high-load marine conditions.

Constructed with corrosion-resistant aluminum and stainless steel fittings, the unit withstands saltwater exposure and elevated temperatures up to 250°F (121°C). Its compact design and BSP standard fittings ensure quick installation in both new builds and retrofits. Capable of dissipating up to 20,000 BTU/hr, the ZF 3312307005 is ideal for enhancing reliability and reducing maintenance in demanding marine environments.

Key Features:

Designed for ZF 45, ZF 63, and ZF 85 marine gearboxes
Prevents gearbox overheating and fluid degradation
Oil ports: 3/8" BSP; Water port caps: 32 mm internal diameter
Corrosion-resistant construction for harsh marine environments
Efficient cooling improves gearbox performance and longevity
Supports high flow rates and stable thermal regulation
Compact and easy-to-install with standard fittings

Technical Specifications:

Part Number	ZF 3312307005
Product Type	Gearbox Oil Cooler
Compatible Gearboxes	ZF 45, ZF 63, ZF 85
Oil Port Size	3/8" BSP
Water Port ID	32 mm
Material	Corrosion-resistant aluminum housing, stainless steel fittings
Dimensions (Approx.)	12" x 6" x 3"
Weight	2.72 kg (6 lbs)
Max Operating Temp	250°F (121°C)
Max Pressure	150 psi (10.34 bar)
Flow Rate	50–70 GPM (depending on system conditions)
Heat Dissipation	Up to 20,000 BTU/hr
Pressure Drop	2–3 psi at optimal flow

Application and Compatibility:

This cooler is specifically designed for marine vessels equipped with ZF 45, ZF 63, and ZF 85 gearboxes. It is ideal for recreational boats, yachts, and commercial vessels requiring reliable thermal regulation of gearbox oil under high load and continuous operation. Whether used in new installations or as a performance upgrade, it ensures effective oil temperature control, reducing mechanical wear and risk of failure.

Benefits:

Improves gearbox efficiency and reduces heat stress
Corrosion-resistant design suited for saltwater environments
Reduces downtime and maintenance costs
Compact and easy to integrate with standard BSP fittings
Reliable operation in high-pressure, high-temperature applications
Helps prevent oil breakdown and gearbox damage
Supports long-term system performance and durability