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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Operating Mode | EL |
| Number of pins | 4 -pin connector |
OE numbers (5)
Search by this OE number to find compatible parts
- BMW—1151 5 A05 704
- BMW—1151 7 563 659
- BMW—1151 7 588 885
- BMW—1151 7 632 426
- BMW—1151 9 455 978
Where this part fits
Original-fit position for OE 11519455978.
About this product
The TOPRAN Water Pump Engine Cooling (503 502) 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: Operating Mode: Electric, Number of pins: Copper -pin connector, Supplementary Article/Info 2: 274, Supplementary Article/Info 2: 774. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. 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: 001-10-23830, 052316000001, 08.19.259, 101414 and 126 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN 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 TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Equivalent products (136)
Show all 136 OE numbers
Water Pump Engine Cooling TOPRAN 503 502 — compatible car models
| Car models | BMW: 3 Convertible (E93), 3 Coupe (E92), 3 (E90), 3 Touring (E91), 5 (F10), 5 Gran Turismo (F07), 5 Touring (F11), 6 Convertible (F12), 6 Coupe (F13), 6 Gran Coupe (F06) (+6 more) |
|---|---|
| Engines | 335 i; 535 i; 640 i; 740 i, Li; xDrive 35 i; sDrive 35 i |
| Year of manufacture | 2004-2018 |
| Manufacturer article number (MPN) | 503 502 |
| OE part numbers | 1151 5 A05 704, 1151 7 563 659, 1151 7 588 885, 1151 7 632 426, 1151 9 455 978 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 503502 . Number of pins: 4 -pin connector. Operating Mode: EL. Supplementary Article/Info 2: 274. Supplementary Article/Info 2: 774
- 1x Water Pump Engine Cooling
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 Water Pump Engine Cooling compatible with my car?
This Water Pump Engine Cooling 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 TOPRAN Water Pump Engine Cooling have?
This TOPRAN Water Pump Engine Cooling has the following specifications: Operating Mode: EL; Number of pins: 4 -pin connector; Supplementary Article/Info 2: 274; Supplementary Article/Info 2: 774. Check the full specifications table above for complete details.
What OE part numbers does this Water Pump Engine Cooling replace?
This Water Pump Engine Cooling replaces OE part numbers: 1151 5 A05 704, 1151 7 563 659, 1151 7 588 885, 1151 7 632 426, 1151 9 455 978. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Water Pump Engine Cooling cost?
This TOPRAN Water Pump Engine Cooling is available for £181.99. Water Pump Engine Cooling prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Water Pump Engine Cooling?
Signs include coolant leaks near the front-centre of the car, whining or grinding noise from the engine, engine overheating, or steam coming from the radiator. Water pumps typically last 60,000-90,000 miles.
What tools do I need to replace a Water Pump Engine Cooling?
Tools needed: coolant drain pan, hose clamp pliers, 8-13mm socket set, torque wrench, gasket scraper, new coolant (correct specification). Difficulty: Professional recommended. Safety warning: Never open the cooling system when the engine is hot -- pressurised coolant will cause severe scalding. Allow to cool completely before draining.
Can I use this part as a replacement for OE 1151 5 A05 704?
Yes, this TOPRAN Water Pump Engine Cooling is a direct replacement for OE part number 1151 5 A05 704. 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.
