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Details
| Specification | Value |
|---|---|
| Brand | MAHLE |
| MPN | crt2000s |
| Category | coolant expansion tank |
| Length [mm] | 120.0 mm |
| Width [mm] | 129 mm |
| Height [mm] | 358.0 mm |
| Additionally required articles (article numbers) | CRB 22 000P |
| Packaging length [cm] | 37.0 cm |
| Packaging width [cm] | 14.50 cm |
| Packaging height [cm] | 14.00 cm |
| Net Weight [g] | 842 g |
OE/OEM numbers (4)
Search by this OE number to find compatible parts
- BMW—17 11 7 573 751
- BMW—17 13 7 514 401
- BMW—7 514 401
- BMW—7 573 751
Where this part fits
Original-fit position for OE 17117573751. The red ring marks where this part installs on the vehicle.

About this product
Sourced from MAHLE, this coolant expansion tank (CRT 2 000S) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Length [mm]: 120, 0 mm, Width [mm]: 129 mm, Height [mm]: 358, 0 mm, Colour: Ceramic, Material: Plastic — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit BMW 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: 053000N, 17 11 7 573 751, 17 13 7 514 401, 33550 and 5 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MAHLE 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.
About MAHLE
MAHLE, founded in 1920 in Stuttgart, Germany, is a global leader in engine components and filtration systems. MAHLE specialises in pistons, cylinder liners, gaskets, turbocharger components, oil filters, air filters, and fuel filters. As an OE supplier to nearly every car and truck manufacturer worldwide, MAHLE products are engineered to exact factory specifications. Trusted by professional workshops and racing teams alike, MAHLE delivers outstanding engine performance and filtration efficiency across millions of applications.
Suitable cars
Equivalent products (5)
coolant expansion tank MAHLE CRT 2 000S — compatible car models
| Car models | BMW: Z4 Coupe (E86), Z4 Roadster (E85) |
|---|---|
| Engines | 3.0 si; 2.0 i |
| Year of manufacture | 2002-2009 |
| Manufacturer article number (MPN) | CRT 2 000S |
| OE part numbers | 17 11 7 573 751, 17 13 7 514 401, 7 514 401, 7 573 751 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MAHLE crt2000s BEHR. Additionally required articles (article numbers): CRB 22 000P. Colour: 7. Height [mm]: 358,0 mm. Length [mm]: 120,0 mm. Material: 6. Net Weight [g]: 842 g. Packaging height [cm]: 14,00 cm. Packaging length [cm]: 37,0 cm
- 1x coolant expansion tank
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 expansion tank compatible with my car?
This coolant expansion tank 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 MAHLE coolant expansion tank have?
This MAHLE coolant expansion tank has the following specifications: Length [mm]: 120,0 mm; Width [mm]: 129 mm; Height [mm]: 358,0 mm; Colour: 7; Material: 6; Supplementary Article/Supplementary Info: 897. Check the full specifications table above for complete details.
What OE part numbers does this coolant expansion tank replace?
This coolant expansion tank replaces OE part numbers: 17 11 7 573 751, 17 13 7 514 401, 7 514 401, 7 573 751. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a coolant expansion tank cost?
This MAHLE coolant expansion tank is available for £54.99. Coolant expansion tank prices vary depending on brand, specifications, and vehicle compatibility. MAHLE 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 expansion tank?
Regular inspection of your coolant expansion tank 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 expansion tank?
Tools needed: hose clamp pliers, flat-head screwdriver, 8mm socket, coolant top-up bottle. Difficulty: Easy DIY. Safety warning: Only open the expansion tank cap when the engine is completely cold -- coolant system is under pressure when hot and will spray scalding fluid if opened.
Can I use this part as a replacement for OE 17 11 7 573 751?
Yes, this MAHLE coolant expansion tank is a direct replacement for OE part number 17 11 7 573 751. 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.