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Details
| Specification | Value |
|---|---|
| Brand | MAHLE |
| MPN | crt42000p |
| Category | coolant expansion tank |
| Length [mm] | 690 mm |
| Width [mm] | 156 mm |
| Height [mm] | 246 mm |
| Opening Pressure [bar] | 0.7 bar |
| Packaging length [cm] | 80.0 cm |
| Packaging width [cm] | 34.00 cm |
| Packaging height [cm] | 16.50 cm |
| Net Weight [g] | 3315 g |
| Manufacturer | MAHLE |
OE/OEM numbers (30)
Search by this OE number to find compatible parts
- MAN / NEOPLAN—0323 013 00
- MAN / NEOPLAN—1100.955.5
- DAF—142 6642
- BOVA—20267656
- MERCEDES-BENZ—300 500 10 49
- MERCEDES-BENZ—357 500 02 49
- SETRA—357 500 02 49 S1
- SETRA—357 500 04 49 S1
- MERCEDES-BENZ—357 500 09 49
- SETRA—357 500 09 49 S1
- MERCEDES-BENZ—357 500 10 49
- MERCEDES-BENZ—3575001149
- BOVA—41158101
- MERCEDES-BENZ—629 500 00 49
- MERCEDES-BENZ—629 500 08 49
- MERCEDES-BENZ / KÄSSBOHRER—8 351 230 000 0
- MERCEDES-BENZ—A 300 500 10 49
- MERCEDES-BENZ—A 357 500 02 49
- SETRA—A357 500 02 49 S1
- SETRA—A357 500 04 49 S1
- MERCEDES-BENZ—A 357 500 09 49
- SETRA—A357 500 09 49 S1
- MERCEDES-BENZ—A 357 500 10 49
- SETRA—A357 500 10 49 S1
- SETRA—A357 500 11 49 S1
- MERCEDES-BENZ—A 629 500 00 49
- SETRA—A629 500 00 49 S1
- MERCEDES-BENZ—A 629 500 08 49
- SETRA—A629 500 08 49 S1
- BOVA—B267656
Where this part fits
Original-fit position for OE 1426642. The red ring marks where this part installs on the vehicle.

What's in the kit
This kit ships with 1 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 | CRTX 1 000P | Level Control Switch, coolant level indicator
| 1 |
About this product
The MAHLE coolant expansion tank (CRT 42 000P) 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: Length [mm]: 690 mm, Width [mm]: 156 mm, Height [mm]: 246 mm, Colour: Ceramic, Material: Plastic. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 001-10-25930, 0323 013 00, 032301300, 1100.955.5 and 48 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (19)
coolant expansion tank MAHLE CRT 42 000P — compatible car models
| Manufacturer article number (MPN) | CRT 42 000P |
|---|---|
| OE part numbers | 0323 013 00, 1100.955.5, 142 6642, 20267656, 300 500 10 49, 357 500 02 49, 357 500 02 49 S1, 357 500 04 49 S1, 357 500 09 49, 357 500 09 49 S1, 357 500 10 49, 3575001149, 41158101, 629 500 00 49, 629 500 08 49, 8 351 230 000 0, A 300 500 10 49, A 357 500 02 49, A357 500 02 49 S1, A357 500 04 49 S1 (+10 more) |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MAHLE crt42000p BEHR *** PREMIUM LINE ***. Colour: 7. Height [mm]: 246 mm. Length [mm]: 690 mm. Manufacturer: MAHLE. Material: 6. Net Weight [g]: 3315 g. Opening Pressure [bar]: 0,7 bar. Packaging height [cm]: 16,50 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?
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 coolant expansion tank fits. 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]: 690 mm; Width [mm]: 156 mm; Height [mm]: 246 mm; Colour: 7; Material: 6; Supplementary Article/Supplementary Info: 896. 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: 0323 013 00, 1100.955.5, 142 6642, 20267656, 300 500 10 49, 357 500 02 49, 357 500 02 49 S1, 357 500 04 49 S1 and 22 more. 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 £532.99. 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 0323 013 00?
Yes, this MAHLE coolant expansion tank is a direct replacement for OE part number 0323 013 00. 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.