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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Opening Temperature [°C] | 71 °C |
| Weight [kg] | 0,112 kg |
OE numbers (6)
Search by this OE number to find compatible parts
- EVOBUS / MERCEDES-BENZ—003 203 79 75
- EVOBUS / MERCEDES-BENZ—003 203 79 75 S1
- MAN / NEOPLAN—51.06402.0065
- MAN / NEOPLAN—51.06402.0065 S2
- EVOBUS / MERCEDES-BENZ—A003 203 79 75
- EVOBUS / MERCEDES-BENZ—A003 203 79 75 S1
Where this part fits
Original-fit position for OE A0032037975.
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 | 15847 | Thermostat, coolant
| 1 |
| 2 | 03505 | Gasket, water pump
| 1 |
About this product
FEBI BILSTEIN Thermostat Coolant (15851) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Opening Temperature [°C]: 71 °C, Weight [kg]: 0, 112 kg, Heating/Cooling: 508, Supplementary Article/Supplementary Info: 35, Supplementary Article/Info 2: 396 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 003 203 79 75, 003 203 79 75 S1, 01.19.026, 019.060-00A and 78 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.
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
Compatibility data is syncing
Verifying part compatibility — check back shortly.Equivalent products (78)
Show all 78 OE numbers
Thermostat Coolant FEBI BILSTEIN 15851 — compatible car models
| Manufacturer article number (MPN) | 15851 |
|---|---|
| OE part numbers | 003 203 79 75, 003 203 79 75 S1, 51.06402.0065, 51.06402.0065 S2, A003 203 79 75, A003 203 79 75 S1 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 15851 . Heating/Cooling: 508. Opening Temperature [°C]: 71 °C. Supplementary Article/Info 2: 396. Supplementary Article/Supplementary Info: 35. Weight [kg]: 0,112 kg
- 1x Thermostat Coolant
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 Thermostat Coolant 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 Thermostat Coolant fits. All fitment data is verified through TecDoc.
What specifications does this FEBI BILSTEIN Thermostat Coolant have?
This FEBI BILSTEIN Thermostat Coolant has the following specifications: Opening Temperature [°C]: 71 °C; Weight [kg]: 0,112 kg; Heating/Cooling: 508; Supplementary Article/Supplementary Info: 35; Supplementary Article/Info 2: 396. Check the full specifications table above for complete details.
What OE part numbers does this Thermostat Coolant replace?
This Thermostat Coolant replaces OE part numbers: 003 203 79 75, 003 203 79 75 S1, 51.06402.0065, 51.06402.0065 S2, A003 203 79 75, A003 203 79 75 S1. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Coolant cost?
This FEBI BILSTEIN Thermostat Coolant is available for £11.99. Thermostat Coolant 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 Thermostat Coolant?
Symptoms include engine overheating, heater not producing warm air, temperature gauge fluctuations, or coolant leaks near the thermostat housing.
What tools do I need to replace a Thermostat Coolant?
Tools needed: hose clamp pliers, 8-10mm socket, torque wrench, drain pan, new coolant. Difficulty: Moderate DIY. Safety warning: Never open the cooling system on a warm or hot engine -- coolant is under pressure and causes scalding. Always use the correct coolant specification to avoid corrosion with aluminium engine components.
Can I use this part as a replacement for OE 003 203 79 75?
Yes, this FEBI BILSTEIN Thermostat Coolant is a direct replacement for OE part number 003 203 79 75. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
