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Details
| Specification | Value |
|---|---|
| Brand | OSSCA |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- BMW—11 53 7 552 403
- BMW—11 53 8 671 515
Where this part fits
Original-fit position for OE 11537552403. The red ring marks where this part installs on the vehicle.
About this product
When thermostat coolant performance matters, the OSSCA 20739 delivers — built to the same dimensional and material standards as the original part it replaces. Compatible with BMW 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: 11 53 7 552 403, 11 53 8 671 515. Matching these numbers confirms a like-for-like replacement with no loss of function. OSSCA 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.
Suitable cars
No equivalent parts found.
Thermostat Coolant OSSCA 20739 — compatible car models
| Car models | BMW: 1 Convertible (E88), 1 Coupe (E82), 1 (E81), 1 (E87), 3 Convertible (E93), 3 Coupe (E92), 3 (E90), 3 Touring (E91), 5 (E60), 5 Touring (E61) |
|---|---|
| Engines | 118 i; 120 i; 116 i; 318 i; 316 i; 520 i |
| Year of manufacture | 2001-2013 |
| Manufacturer article number (MPN) | 20739 |
| OE part numbers | 11 53 7 552 403, 11 53 8 671 515 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
OSSCA 20739
- 1x Thermostat Coolant
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 Thermostat Coolant compatible with my car?
This Thermostat Coolant fits BMW 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 OSSCA Thermostat Coolant have?
The package includes the Thermostat Coolant as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Thermostat Coolant replace?
This Thermostat Coolant replaces OE part numbers: 11 53 7 552 403, 11 53 8 671 515. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Coolant cost?
This OSSCA Thermostat Coolant is available for £44.99. Thermostat Coolant prices vary depending on brand, specifications, and vehicle compatibility. OSSCA 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 11 53 7 552 403?
Yes, this OSSCA Thermostat Coolant is a direct replacement for OE part number 11 53 7 552 403. 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.
