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Details
| Specification | Value |
|---|---|
| Brand | MANN-FILTER |
| MPN | wd950-5 |
| Height [mm] | 172 mm |
| Thread Size | 1-12 UNF |
| Outer Diameter [mm] | 93 mm |
| Bypass Valve Opening Pressure [bar] | 3.5 bar |
| Gasket inside diameter [mm] | 62 mm |
| Gasket outside diameter [mm] | 71 mm |
OE/OEM numbers (6)
Where this part fits
Original-fit position for OE 4399525. The red ring marks where this part installs on the vehicle.
About this product
When filter operating hydraulics performance matters, the MANN-FILTER WD 950/5 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Height [mm]: 172 mm, Thread Size: 1-12 UNF, Outer Diameter [mm]: 93 mm, Filter type: Steel, Filter type: 97. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 0437 9927, 04399525, 1534780, 198409 and 14 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MANN-FILTER is a recognised supplier of automotive filtration components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About MANN-FILTER
MANN-FILTER, part of the MANN+HUMMEL group founded in 1941 in Ludwigsburg, Germany, is one of the world's leading filtration specialists. The brand produces oil filters, air filters, fuel filters, cabin filters, and hydraulic filters for virtually every vehicle application. MANN-FILTER is an OE supplier to major manufacturers including Volkswagen, BMW, and Mercedes-Benz. With ISO/TS 16949 certification and products tested to the highest standards, MANN-FILTER ensures clean oil, air, and fuel for optimum engine protection and longevity.
Suitable cars
Compatibility data is syncing
Verifying part compatibility — check back shortly.Equivalent products (11)
Filter Operating Hydraulics MANN-FILTER WD 950/5 — compatible car models
| Manufacturer article number (MPN) | WD 950/5 |
|---|---|
| OE part numbers | 0437 9927, 04399525, 435 5850, 437 1105, 437 9927, 439 9525 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
MANN-FILTER wd950-5 . Bypass Valve Opening Pressure [bar]: 3,5 bar. EU General Product Safety Regulation (GPSR): 2. Filter type: 1. Filter type: 97. Gasket inside diameter [mm]: 62 mm. Gasket outside diameter [mm]: 71 mm. Height [mm]: 172 mm. Outer Diameter [mm]: 93 mm
- 1x Filter Operating Hydraulics
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Filter Operating Hydraulics compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Filter Operating Hydraulics fits. All fitment data is verified through TecDoc.
What specifications does this MANN-FILTER Filter Operating Hydraulics have?
This MANN-FILTER Filter Operating Hydraulics has the following specifications: Height [mm]: 172 mm; Thread Size: 1-12 UNF; Outer Diameter [mm]: 93 mm; Filter type: 1; Filter type: 97; Bypass Valve Opening Pressure [bar]: 3,5 bar. Check the full specifications table above for complete details.
What OE part numbers does this Filter Operating Hydraulics replace?
This Filter Operating Hydraulics replaces OE part numbers: 0437 9927, 04399525, 435 5850, 437 1105, 437 9927, 439 9525. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Filter Operating Hydraulics cost?
This MANN-FILTER Filter Operating Hydraulics is available for £37.99. Filter Operating Hydraulics prices vary depending on brand, specifications, and vehicle compatibility. MANN-FILTER parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Filter Operating Hydraulics?
Regular inspection of your Filter Operating Hydraulics is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Filter Operating Hydraulics?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Filter Operating Hydraulics fitted by a professional mechanic.
Can I use this part as a replacement for OE 0437 9927?
Yes, this MANN-FILTER Filter Operating Hydraulics is a direct replacement for OE part number 0437 9927. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the MANN-FILTER WD 950/5 the same as the MANN-FILTER H 10 002?
No, while both are Filter Operating Hydraulics parts, they are different products. The MANN-FILTER WD 950/5 has Height [mm]: 172 mm, Thread Size: 1-12 UNF, Outer Diameter [mm]: 93 mm. The MANN-FILTER H 10 002 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
