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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| for OE number | 055 121 121 F S1 |
| Weight [kg] | 0,062 kg |
OE numbers (2)
Search by this OE number to find compatible parts
- AUDI / SEAT / VW—055 121 121 F
- AUDI / SEAT / VW—055 121 121 F S1
Where this part fits
Original-fit position for OE 055121121F. The red ring marks where this part installs on the vehicle.
What's in the kit
This kit ships with 2 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | 12403 | Coolant Flange
| 1 |
| 2 | 17966 | Seal, thermostat
| 1 |
About this product
FEBI BILSTEIN Coolant Flange (34171) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — for OE number: 055 121 121 F S1, Weight [kg]: 0, 062 kg, Material: Plastic, Supplementary Article/Info 2: 396 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, SEAT, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 002-60-01053, 00758, 03536, 055 121 121 F and 80 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 with tracked delivery and a 14-day money-back guarantee with 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 (88)
Show all 88 OE numbers
Coolant Flange FEBI BILSTEIN 34171 — compatible car models
| Car models | AUDI: 100 C2 Avant (435, 436), 100 C2 Saloon (431, 433, 434), 100 C3 Avant (445, 446), 100 C3 Saloon (443, 444), 80 B2 Saloon (811, 813, 814, 819, 853), 90 B2 (813, 814, 853), COUPE B2 (81, 855, 856), COUPE B3 (89, 8B3); SEAT: TOLEDO I (1L2); VW: CADDY I (14), CALIFORNIA T4 Camper (7DJ, 7DK, 70J), CORRADO (53I), GOLF I (17), GOLF I Cabriolet (155), GOLF II (19E, 1G1), GOLF II Van (19E, 1G1), ILTIS (183), JETTA I (16), JETTA II (19E, 1G2, 165) (+11 more) |
|---|---|
| Engines | 2.1; 1.8; 1.3; 1.6 TD; 1.6; 1.6 i; 1.5; 1.9 TD; 1.8 16V; 1.6 D |
| Year of manufacture | 1974-2008 |
| Manufacturer article number (MPN) | 34171 |
| OE part numbers | 055 121 121 F, 055 121 121 F S1 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 34171 . for OE number: 055 121 121 F S1. Material: 6. Supplementary Article/Info 2: 396. Weight [kg]: 0,062 kg
- 1x Coolant Flange
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 Coolant Flange compatible with my car?
This Coolant Flange fits AUDI, SEAT, 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: 055 121 121 F S1; Weight [kg]: 0,062 kg; Material: 6; Supplementary Article/Info 2: 396. 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: 055 121 121 F, 055 121 121 F S1. 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 £4.99. 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 055 121 121 F?
Yes, this FEBI BILSTEIN Coolant Flange is a direct replacement for OE part number 055 121 121 F. 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 34171 the same as the FEBI BILSTEIN 102294?
No, while both are Coolant Flange parts, they are different products. The FEBI BILSTEIN 34171 has for OE number: 055 121 121 F S1, Weight [kg]: 0,062 kg, Material: 6. 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.
