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The ZF 501401 Transmission Oil Filter Insert is designed for ZF45C, ZF63C, and ZF88C gearboxes. Offers >95% separation efficiency with O-ring HSW250. Handles up to 700 mbar differential pressure and operates from -20°C to +65°C. Compatible with diesel and biodiesel. Replaces part 33992E.
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ZF 501401 – Transmission Oil Filter Insert for ZF45C / ZF63C / ZF88C (Replaces 33992E, >95% Efficiency)
The ZF 501401 Transmission Oil Filter Insert is a precision-engineered filtration component compatible with ZF45C, ZF63C, and ZF88C marine transmissions. Designed to replace the original 33992E filter insert, it includes a high-quality HSW250 O-ring and ensures over 95% separation efficiency, effectively protecting the transmission system from contamination. Built for both diesel and biodiesel compatibility, this insert offers reliable performance in varying pressure and temperature conditions, making it ideal for harsh marine environments.
Key Features:
- Compatible with ZF45C, ZF63C, and ZF88C transmission models
- Replaces OEM filter insert 33992E
- Includes O-ring HSW250 for secure sealing
- >95% separation efficiency for superior filtration
- Suitable for diesel and biodiesel applications
- Permissible differential pressure: 250 mbar (paper), 700 mbar (steel)
- Operating temperature range: -20°C to +65°C
- Designed for long service life with low maintenance
Specifications:
Part Number ZF 501401 Type Transmission Oil Filter Insert Replaces 33992E O-Ring Type HSW250 Compatible Gearboxes ZF45C, ZF63C, ZF88C Filtration Efficiency >95% Pressure Resistance 250 mbar (paper), 700 mbar (steel) Operating Temperature -20°C to +65°C Media Compatibility Diesel, Biodiesel Maximum Operating Pressure 10 bar (145 psi) Flow Rate 10–20 L/min Weight 0.5 kg (paper), 0.7 kg (steel) Material Filtration paper or steel mesh (depending on version) Installation Direct fit, easy to replace
Benefits:
- Protects transmission from contaminants and wear
- Ensures consistent fluid flow and filtration
- Suitable for varying marine operating conditions
- Reduces maintenance needs and extends service intervals
- Provides reliable performance under pressure fluctuations
- Easy installation with precision fit and included O-ring
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