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Expansion Tank TOPRAN 503 981
coolant expansion tank TOPRAN 503 981. Fits 4 car models (BMW). Replaces 2 OE numbers.

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£47.99 Save £11.00 (23%)
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Specification. From the manufacturer's data.
- Brand
- TOPRAN
- Category
- coolant expansion tank
- MPN
- 503 981
- SKU
- 0301-503 981
- What's included
- 1x coolant expansion tank
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
Where this part fits
Original-fit position for OE 17138610655. The red ring marks where this part installs on the vehicle.

Equivalent products. They fit in the same place.
8 available · 31 numbers In stock from £17.99 to £61.99.
Only 2 left!
Only 2 left!
Only 2 left!
Only 2 left!
Only 2 left!
Last one! Only 1 left
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All 31 cross-reference numbers
Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.
- 4U Autoparts 12758BW
- ABAKUS 004-026-031
- AKS DASIS 053034N
- Autostar Germany 202946
- Autostar Germany 202952
- BAPMIC BF0426720118
- BBR Automotive 001-10-29613
- BIRTH 80620
- BOGAP B4240119
- DOGA 40X0228
- FEBI BILSTEIN 174442
- Frankberg 5481FB0012273
- FREY 823369201
- MAHLE CRT 239 000S
- METZGER AUTOTEILE 2141027
- NISSENS 996357
- NRF 454059
- NTY CZW-BM-061
- OSSCA 47144
- SCHNIEDER AUTOTECH BMS32.00112
- SWAG 33 10 2203
- THERMOTEC DBB024TT
- TOPRAN 17138610655
- TOPRAN 17139485733
- TRICLO 482255
- TRUCKTEC AUTOMOTIVE 08.40.149
- VAICO V20-8213
- VEMA 160049
- WILMINK GROUP WG2152553
- WILMINK GROUP WG2161630
- WILMINK GROUP WG2229658
| Model | Engines | Years |
|---|---|---|
| BMW4 models | ||
| BMW 5 (G30, F90) | 520 E PLUG-IN-HYBRID, 520 i, 520 i Mild-Hybrid, 530 e Plug-in Hybrid, 530 e Plug-in-Hybrid, 530 e Plug-in-Hybrid xDrive, 530 i, 530 i Mild-Hybrid, 530 i Mild-Hybrid xDrive, 530 i xDrive, 540 i, 540 i Mild-Hybrid, 540 i Mild-Hybrid xDrive, 540 i xDrive, 545 e Plug-in-Hybrid xDrive | 2016– |
| BMW 5 Touring (G31) | 520 E PLUG-IN-HYBRID, 520 i, 530 e Plug-in-Hybrid, 530 e Plug-in-Hybrid xDrive, 530 i, 530 i Mild-Hybrid, 530 i Mild-Hybrid xDrive, 530 i xDrive, 540 i Mild-Hybrid xDrive, 540 i xDrive | 2017– |
| BMW 6 Gran Turismo (G32) | 620 d, 630 d Mild-Hybrid, 630 d Mild-Hybrid xDrive, 630 i, 630 i Mild-Hybrid, 630 i xDrive, 640 d Mild-Hybrid xDrive, 640 i, 640 i Mild-Hybrid, 640 i Mild-Hybrid xDrive, 640 i xDrive | 2017– |
| BMW 7 (G11, G12) | 730 d, Ld Mild-Hybrid, 730 d, Ld Mild-Hybrid xDrive, 730 i, Li, 740 d, Ld Mild-Hybrid xDrive, 740 e, Le, 740 i, Li, 740 Li xDrive, 745 e, Le Plug-in-Hybrid, 745 Le Plug-in-Hybrid xDrive | 2015–2022 |
Always verify compatibility with your vehicle before ordering.
More about this part. Related categories and similar parts.
TOPRAN
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Common OE numbers for this part
Common original equipment numbers linked to replacement-part pages.
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£5.99
Standard delivery
Delivery estimates depend on current stock availability.
£50.00
Free delivery
Orders from £50.00
14 days
Returns
Money back if the part does not fit.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10