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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| for OE number | 1K0 122 291 C |
| Weight [kg] | 0,031 kg |
| Inner Diameter [mm] | 15 mm |
| Outer Diameter [mm] | 20 mm |
| Outer Diameter 1 [mm] | 8 mm |
| Inner Diameter 1 [mm] | 4 mm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- AUDI / VW—1K0 122 101 BB
- AUDI / VW—1K0 122 101 BC
- AUDI / SEAT / SKODA / VW—1K0 122 291 C
Where this part fits
Original-fit position for OE 1K0122291C. The red ring marks where this part installs on the vehicle.
About this product
The FEBI BILSTEIN Coolant Flange (45990) 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: for OE number: 1K0 122 291 C, Weight [kg]: 0, 031 kg, Inner Diameter [mm]: EPDM mm, Outer Diameter [mm]: 20 mm, Outer Diameter 1 [mm]: Carbon mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI, SEAT, SKODA, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 001-10-22350, .005.4829, 07820, 111 238 and 64 more. 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Coolant Flange buying guide
Why replace this part?
Coolant outlet flanges and pipe connectors direct coolant flow through the engine circuit. Plastic flanges crack from thermal cycling; metal flanges develop pinhole corrosion. Either causes coolant loss and overheating.
Signs you need a replacement
- Coolant leak at a pipe junction on the engine
- white crystalline deposit around a fitting
- rapid coolant consumption
- overheating
- steam under the bonnet
When to replace
Inspect every 60,000–80,000 miles. Plastic flanges are a known weak point — replace proactively during major cooling system work.
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
Equivalent products (71)
Show all 71 OE numbers
Coolant Flange FEBI BILSTEIN 45990 — compatible car models
| Car models | AUDI: A3 (8P1), A3 Convertible (8P7), A3 Sportback (8PA), Q3 (8UB, 8UG), TT (8J3), TT Roadster (8J9); SEAT: ALHAMBRA (710, 711), ALTEA (5P1), ALTEA XL (5P5, 5P8), IBIZA IV (6J5, 6P1), IBIZA IV SC (6J1, 6P5), IBIZA IV ST (6J8, 6P8), LEON (1P1), TOLEDO III (5P2); SKODA: OCTAVIA II (1Z3), OCTAVIA II Combi (1Z5), SUPERB II (3T4), SUPERB II Estate (3T5), YETI (5L); VW: BEETLE (5C1, 5C2), BEETLE Convertible (5C7, 5C8), CADDY III Box Body/MPV (2KA, 2KH, 2CA, 2CH), CADDY III MPV (2KB, 2KJ, 2CB, 2CJ), CC B7 (358), EOS (1F7, 1F8), GOLF PLUS V (5M1, 521), GOLF PLUS Van (521), GOLF V (1K1), GOLF VAN VI Variant (AJ5) (+1 more) |
|---|---|
| Engines | 1.2 TSI; 1.2 TFSI; 2.0 TFSI; 1.8 TFSI; 1.4 TSI; 1.0; 1.4 16V; 1.8 TSI; 2.0 FSI; 1.2 TSi |
| Year of manufacture | 2003-2022 |
| Manufacturer article number (MPN) | 45990 |
| OE part numbers | 1K0 122 101 BB, 1K0 122 101 BC, 1K0 122 291 C |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 45990 . for OE number: 1K0 122 291 C. Inner Diameter 1 [mm]: 4 mm. Inner Diameter [mm]: 15 mm. Outer Diameter 1 [mm]: 8 mm. Outer Diameter [mm]: 20 mm. Weight [kg]: 0,031 kg
- 1x Coolant Flange
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 Coolant Flange compatible with my car?
This Coolant Flange fits AUDI, SEAT, SKODA, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this FEBI BILSTEIN Coolant Flange have?
This FEBI BILSTEIN Coolant Flange has the following specifications: for OE number: 1K0 122 291 C; Weight [kg]: 0,031 kg; Inner Diameter [mm]: 15 mm; Outer Diameter [mm]: 20 mm; Outer Diameter 1 [mm]: 8 mm; Inner Diameter 1 [mm]: 4 mm. Check the full specifications table above for complete details.
What OE part numbers does this Coolant Flange replace?
This Coolant Flange replaces OE part numbers: 1K0 122 101 BB, 1K0 122 101 BC, 1K0 122 291 C. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Coolant Flange cost?
This FEBI BILSTEIN Coolant Flange is available for £8.99. Coolant Flange 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 Coolant Flange?
Regular inspection of your Coolant Flange 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 Coolant Flange?
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 Coolant Flange fitted by a professional mechanic.
Can I use this part as a replacement for OE 1K0 122 101 BB?
Yes, this FEBI BILSTEIN Coolant Flange is a direct replacement for OE part number 1K0 122 101 BB. 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 FEBI BILSTEIN 45990 the same as the FEBI BILSTEIN 102294?
No, while both are Coolant Flange parts, they are different products. The FEBI BILSTEIN 45990 has for OE number: 1K0 122 291 C, Weight [kg]: 0,031 kg, Inner Diameter [mm]: 15 mm. The FEBI BILSTEIN 102294 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.
