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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Height [mm] | 9.9 mm |
| Weight [kg] | 0,001 kg |
| DIN/ISO | 935-1 |
| Internal Thread Size | M12 x 1.25 |
OE part numbers
No OEM references found.
About this product
Sourced from FEBI BILSTEIN, this castle nut (101026) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Height [mm]: Stainless Steel, Stainless Steel mm, Weight [kg]: 0, 001 kg, Spanner Size: Synthetic, Bolt Head-/Nut Design: Steel, DIN/ISO: 935-1 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 90 10 1026, ADBP780084. Matching these numbers confirms a like-for-like replacement with no loss of function. FEBI BILSTEIN 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
About FEBI BILSTEIN
febi bilstein, founded in 1844 in Ennepetal, Germany, is one of the oldest and most comprehensive automotive parts suppliers in the independent aftermarket. febi bilstein offers over 40,000 parts spanning steering, suspension, engine, braking, cooling, and electrical systems. Certified to IATF 16949 and supplying OE-quality components, febi bilstein products undergo rigorous testing to match original equipment performance. With nearly 180 years of German engineering tradition, febi bilstein is the go-to brand for reliable, competitively priced replacement parts.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (2)
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 101026 . Bolt Head-/Nut Design: 1. DIN/ISO: 935-1. Height [mm]: 9,9 mm. Internal Thread Size: M12 x 1,25. Spanner Size: 19. Weight [kg]: 0,001 kg
- 1x Castle Nut
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 Castle 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 Castle Nut fits. All fitment data is verified through TecDoc.
What specifications does this FEBI BILSTEIN Castle Nut have?
This FEBI BILSTEIN Castle Nut has the following specifications: Height [mm]: 9,9 mm; Weight [kg]: 0,001 kg; Spanner Size: 19; Bolt Head-/Nut Design: 1; DIN/ISO: 935-1; Internal Thread Size: M12 x 1,25. Check the full specifications table above for complete details.
How much does a Castle Nut cost?
This FEBI BILSTEIN Castle Nut is available for £1.99. Castle Nut prices vary depending on brand, specifications, and vehicle compatibility. FEBI BILSTEIN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Castle Nut?
Regular inspection of your Castle 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 Castle 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 Castle Nut fitted by a professional mechanic.
Is the FEBI BILSTEIN 101026 the same as the FEBI BILSTEIN 09848?
No, while both are Castle Nut parts, they are different products. The FEBI BILSTEIN 101026 has Height [mm]: 9,9 mm, Weight [kg]: 0,001 kg, Spanner Size: 19. The FEBI BILSTEIN 09848 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.
