Mann Oil Filter - WD 731/4
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Product Information
Full details
The Mann WD 731/4 oil filter is designed for automotive enthusiasts and professional mechanics who prioritize engine longevity through high-quality filtration. This spin-on filter excels at removing combustion residues and impurities, offering robust protection that meets original equipment standards. While it provides exceptional filtration performance, users should verify compatibility with their specific engine model, as its technical specifications, including the M22x1.5 thread size and 3.0 bar bypass valve, are tailored for precise applications.
All features
| Model Part Number | WD 731/4 |
|---|---|
| Brand | Mann |
Extended Product Information
FAQs
What is the thread size of the Mann WD 731/4?
The filter features an M22x1.5 thread.
What is the bypass valve opening pressure?
This filter has a bypass valve opening pressure of 3.0 bar.
Can I use this filter if my engine requires a different thread size?
No. Using a filter with an incompatible thread size can lead to oil leaks and engine damage. Always match the MPN to your vehicle's specifications.
How often should I replace this filter?
You should follow the recommended maintenance interval provided by your vehicle manufacturer, as the filter is designed to maintain protection throughout the standard service life.
Does this filter come with a pre-lubricated gasket?
No, it is recommended to apply a small amount of clean engine oil to the gasket manually before installation.
Troubleshooting
Oil leaking from the filter base after installation
Check if the old gasket was accidentally left on the engine block (double gasketing) or if the filter is not tightened sufficiently.
Difficult to remove during next service
Ensure the filter was not over-tightened during initial installation and that the gasket was lubricated with oil beforehand.
Pros and Cons
Pros
- Meets strict original equipment manufacturer standards
- High-grade filtration media prevents premature engine wear
- Durable construction designed for high-pressure cycles
- Reliable sealing prevents oil leakage
- Engineered for the full duration of maintenance intervals
Cons
- Requires exact thread size match (M22x1.5)
- Not compatible with all engine types
- Requires specific tools for spin-on removal
Setup, Compatibility & Care
Installation of the WD 731/4 requires a standard oil filter wrench matching the 76 mm diameter. Before spinning on the new filter, always apply a thin layer of clean engine oil to the rubber gasket to ensure it seats properly and can be removed easily at the next service interval.
Compatibility Note: Always verify your engine's thread pitch requirements against the M22x1.5 specification before attempting installation. Cross-threading can cause permanent damage to the engine mounting stud.
Care Instructions:
- Ensure the engine is cool before beginning the filter change to avoid burns.
- Verify the old gasket has been removed from the engine block; stacking gaskets can cause catastrophic oil leaks.
- Hand-tighten until the gasket contacts the surface, then tighten an additional 3/4 turn as per manufacturer guidelines.