WF331451 – Donaldson FAA-PMA Oil Filter Element for Pratt & Whitney PT6 Engines
Available now on the Airparts.aero Marketplace.
Overview
The WF331451 Oil Filter Element by Donaldson Aerospace & Defense is a FAA-PMA certified direct replacement for OEM turbine oil filters used in Pratt & Whitney PT6 engine series. Built to meet or exceed original filtration performance, this non-cleanable, high-efficiency cartridge filter protects vital engine components by removing fine particulate, metallic debris, and carbon buildup from circulating engine oil.
Designed for turbine lubrication systems operating under extreme temperature and pressure conditions, the WF331451 filter ensures consistent oil cleanliness, minimizes wear, and supports extended engine life. Donaldson’s aerospace filtration technology guarantees flight-critical performance across general aviation, commuter, and turboprop aircraft platforms.
Key Features
- FAA-PMA Approved: Legal and certified replacement for OEM PT6 oil filter elements.
- High-Efficiency Filtration: Traps contaminants down to critical micron levels for engine longevity.
- Non-Cleanable Design: Replace-on-interval design simplifies maintenance and improves reliability.
- Built for Harsh Conditions: Performs in high-temperature, high-pressure PT6 engine environments.
- Donaldson Trusted Quality: Aerospace-proven manufacturing standards ensure safety and compliance.
- Cost-Effective Alternative: Lower life-cycle cost versus OEM parts, with no compromise in performance.
Technical Specifications
- Part Number: WF331451
- Manufacturer: Donaldson Aerospace & Defense
- Certification: FAA-PMA Approved
- Engine Compatibility: Pratt & Whitney PT6A, PT6B, PT6C series
- Filter Type: Non-cleanable turbine oil filter element
- Material: High-flow synthetic media with structural reinforcement
- Installation: Drop-in replacement for OEM filter assemblies
- Application: Lubrication system filtration in turbine engines
Aircraft & Engine Compatibility
Commonly used in:
- Pratt & Whitney PT6A-21 / PT6A-34 / PT6A-41 / PT6A-67
- PT6B and PT6C variants in helicopters and fixed-wing aircraft
- General aviation, regional turboprops, and special missions platforms
Confirm fitment with IPC or service documentation for model-specific applications.
Applications
- Scheduled Engine Maintenance
- Line Maintenance Oil Servicing
- Hot Section Inspections
- Overhaul Kit Integration
Why Choose the WF331451 Oil Filter?
- Certified Performance: Matches or exceeds OEM standards under FAA PMA regulations.
- Dependable Oil Cleanliness: Reduces wear and increases reliability of turbine internals.
- Simplifies Maintenance: Replace-on-condition cartridge design ensures service consistency.
- Flight-Proven Quality: Used by MROs and turbine operators across global fleets.
Order Your WF331451 Donaldson Oil Filter Today
Protect your PT6 turbine engine with certified Donaldson filtration.
Order the WF331451 Oil Filter Element today from Airparts.aero — your trusted source for FAA-compliant turbine maintenance solutions and premium aftermarket parts.
The WF331451 Donaldson Oil Filter offers industry-proven reliability and superior contaminant control for Pratt & Whitney PT6 engines. Designed for non-cleanable, scheduled replacement, this filter element provides the optimal balance of protection, convenience, and cost-effectiveness for operators looking to maximize engine life. At Airparts.aero, we deliver certified PMA parts from Donaldson and other trusted names to keep your fleet airworthy, on schedule, and in peak operating condition.
Always follow PT6 maintenance manuals for filter replacement procedures and torque specs.
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