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Details
| Specification | Value |
|---|---|
| Brand | MANN-FILTER |
| MPN | wk1040-1x |
| Height [mm] | 128 mm |
| Thread Size | 3 3/4-10 UNS |
| Outer Diameter [mm] | 108 mm |
| Exit Thread Size | 1-14 UNS - 1B |
OE/OEM numbers (12)
Search by this OE number to find compatible parts
- VOLVO—20851191
- VOLVO—20853583
- VOLVO—21380403
- VOLVO—21380408
- VOLVO—21380515
- MASSEY FERGUSON—3909638M1
- RENAULT TRUCKS—74 20 591 256
- RENAULT TRUCKS—74 20 851 191
- RENAULT / RENAULT KOREA—74 21 088 114
- RENAULT TRUCKS—74 21 380 403
- DENNIS—DEP102125
- VOLVO—VOE21380408
About this product
The MANN-FILTER Fuel Filter (WK 1040/1 x) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Height [mm]: 128 mm, Thread Size: 3 3/4-10 UNS, Outer Diameter [mm]: 108 mm, Supplementary Article/Supplementary Info: 35, Filter type: Steel. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 1535585, 20851191, 20853583, 20863193 and 50 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
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Verifying part compatibility — check back shortly.Equivalent products (43)
Show all 43 OE numbers
Fuel Filter MANN-FILTER WK 1040/1 x — compatible car models
| Manufacturer article number (MPN) | WK 1040/1 x |
|---|---|
| OE part numbers | 20851191, 20853583, 21380403, 21380408, 21380515, 3909638M1, 74 20 591 256, 74 20 851 191, 74 21 088 114, 74 21 380 403, DEP102125, VOE21380408 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MANN-FILTER wk1040-1x . EU General Product Safety Regulation (GPSR): 2. Exit Thread Size: 1-14 UNS - 1B. Filter type: 1. Height [mm]: 128 mm. Outer Diameter [mm]: 108 mm. Supplementary Article/Supplementary Info: 35. Thread Size: 3 3/4-10 UNS
- 1x Fuel Filter
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 Fuel Filter 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 Fuel Filter fits. All fitment data is verified through TecDoc.
What specifications does this MANN-FILTER Fuel Filter have?
This MANN-FILTER Fuel Filter has the following specifications: Height [mm]: 128 mm; Thread Size: 3 3/4-10 UNS; Outer Diameter [mm]: 108 mm; Supplementary Article/Supplementary Info: 35; Filter type: 1; Exit Thread Size: 1-14 UNS - 1B. Check the full specifications table above for complete details.
What OE part numbers does this Fuel Filter replace?
This Fuel Filter replaces OE part numbers: 20851191, 20853583, 21380403, 21380408, 21380515, 3909638M1, 74 20 591 256, 74 20 851 191 and 4 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Fuel Filter cost?
This MANN-FILTER Fuel Filter is available for £34.99. Fuel Filter 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 Fuel Filter?
Signs include difficulty starting, engine stalling, hesitation during acceleration, reduced fuel economy, or the check engine light illuminating.
What tools do I need to replace a Fuel Filter?
Tools needed: fuel line quick-release disconnect tools (plastic clip set), drip tray, fuel-safe gloves, new filter with fittings. Difficulty: Moderate DIY. Safety warning: Relieve fuel system pressure before opening any line (run engine until it stalls or use the Schrader valve if present). No open flames or sparks -- petrol vapour is highly flammable.
Can I use this part as a replacement for OE 20851191?
Yes, this MANN-FILTER Fuel Filter is a direct replacement for OE part number 20851191. 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 WK 1040/1 x the same as the MANN-FILTER BFU 700 x?
No, while both are Fuel Filter parts, they are different products. The MANN-FILTER WK 1040/1 x has Height [mm]: 128 mm, Thread Size: 3 3/4-10 UNS, Outer Diameter [mm]: 108 mm. The MANN-FILTER BFU 700 x 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.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
