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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Thread Size | M 12 |
| Thread Pitch [mm] | 1.5 mm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- SEAT / VW—N 903 237 03
- SEAT / VW—N 903 237 04
- SEAT / VW—N 903 237 06
Where this part fits
Original-fit position for OE N90323703. The red ring marks where this part installs on the vehicle.
About this product
When nut performance matters, the TOPRAN 104 530 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Thread Size: M 12, Spanner Size: Composite, Bolt Head-/Nut Design: Steel, Quality/ Grade: Brass, Surface: 57. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 05139, 30 90 5139, 350005, 430 314 and 11 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN is a recognised supplier of automotive replacement 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 TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (13)
Nut TOPRAN 104 530 — compatible car models
| Manufacturer article number (MPN) | 104 530 |
|---|---|
| OE part numbers | N 903 237 03, N 903 237 04, N 903 237 06 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 104530 . Bolt Head-/Nut Design: 1. Bolt/Nut Version: 32. Bolt/Nut Version: 33. Quality/ Grade: 10. Spanner Size: 18. Surface: 57. Thread Pitch [mm]: 1,5 mm. Thread Size: M 12
- 1x Nut
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 Nut 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 Nut fits. All fitment data is verified through TecDoc.
What specifications does this TOPRAN Nut have?
This TOPRAN Nut has the following specifications: Thread Size: M 12; Spanner Size: 18; Bolt Head-/Nut Design: 1; Quality/ Grade: 10; Surface: 57; Bolt/Nut Version: 33. Check the full specifications table above for complete details.
What OE part numbers does this Nut replace?
This Nut replaces OE part numbers: N 903 237 03, N 903 237 04, N 903 237 06. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Nut cost?
This TOPRAN Nut is available for £2.99. Nut prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Nut?
Regular inspection of your Nut 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 Nut?
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 Nut fitted by a professional mechanic.
Can I use this part as a replacement for OE N 903 237 03?
Yes, this TOPRAN Nut is a direct replacement for OE part number N 903 237 03. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
