BMW F87 M2 LCI F80 M3 F83 F82 M4 S55 Water Pump Pipe Cylinder Head Hose 7848500

The BMW F87 M2 LCI F80 M3 F83 F82 M4 S55 Water Pump Head Hose is an original equipment cooling system component designed for sporty BMW models with the S55 engine. This OEM part ensures a factory fit, proper coolant flow geometry, and compatibility with the stock engine.

Specifications and technical data

• SKU: 7848500-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848500
• Substitutable numbers: 7848500, 11537848500
• Category: Turbos & Parts

Purpose and function in the S55 cooling system

The water pump-to-cylinder head hose is responsible for stable coolant transport between the water pump and the cylinder head of the S55 engine, which is crucial for maintaining proper operating temperature. In the BMW F87 M2 LCI, F80 M3, F82, and F83 M4 engines, precise coolant flow is particularly important due to the high thermal loads of the supercharged engine.

The original geometry of the pipe minimizes the risk of local turbulence, kinks and leaks, which translates into:

• stable cylinder head temperature during dynamic driving,
• correct cooperation with the standard water pump and cooling circuit,
• maintaining the factory operating parameters of the S55 engine.

Original origin and technical category

This BMW S55 water pump-head hose is from the BMW OE parts line and is classified in the turbocharger and parts category. This means it's designed to work with the turbocharging system and the high-temperature operating environment typical of turbocharged engines.

Original workmanship ensures:

• the use of materials resistant to elevated temperatures and pressure in the cooling system,
• factory diameters of connectors and ends, facilitating installation on standard connectors,
• Compatibility with S55 engine accessories in F87, F80, F82 and F83 bodies.

Used condition - conscious service choice

The part is offered in used condition, allowing for a cost-effective repair while maintaining original BMW specifications. For many M2, M3, and M4 owners, this represents a reasonable compromise between cost and maintaining factory fitment quality.

Choosing a used OEM component in your cooling system has several practical advantages:

• maintaining the original cable geometry and attachment points,
• no need for adaptation or modification of the installation,
• possibility of quick replacement in service or garage conditions.

Benefits of using the original water pump hose – head

In the S55 engine, a properly functioning cooling system directly impacts the engine's durability and performance stability. Using a genuine BMW water pump hose/head helps reduce the risk of overheating, power losses, and unwanted temperature alarms.

Key benefits include:

• Factory fitment to the S55 engine in the F87 M2 LCI, F80 M3, F82 and F83 M4 models,
• maintaining the coolant flow in the cylinder head area as designed by BMW,
• consistency with other components of the cooling system and turbocharging accessories.

Complementing the offer and service knowledge

If you're looking for other turbocharger components and parts for BMW, check out our dedicated category: Turbochargers and Parts for BMW . This will help you easily assemble the necessary equipment for a comprehensive S55 engine service.

Those interested in optimizing repair costs while retaining original components can also check out the guide on our blog. The article describes how to wisely use the used and replacement parts market to reduce service costs – details can be found here: How to save on original car parts for Volkswagen and other brands .