BMW 1 3 Series E82 E90 E91 E92 N54 Hose For Engine Inlet And Heater Radiator

The BMW E82 E90 E91 E92 N54 Water Pipe Hose Line is a cooling system component from the Lines, Hoses, and Pipes category, designed for popular BMW models with the N54 engine. Its original design ensures proper coolant flow, stable engine operation, and compatibility with the factory system geometry.

Specifications and technical data

• SKU: 6983858
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6983858
• Substitutable numbers: 64216983858, 6983858
• Category: Hoses, Lines & Pipes

Purpose and Function in the Cooling System

The water pipe in BMW E82, E90, E91, and E92 models with the N54 engine is responsible for the controlled transport of coolant between cooling system components. A correctly selected line minimizes the risk of overheating, leaks, and radiator performance loss, which translates to stable engine operation under a wide range of loads.

The component is designed as part of the original BMW cooling system, thus maintaining the correct shape, diameter, and mounting points. This allows for the factory routing of lines in the engine bay, without interference with other components and without the need for modifications.

Benefits of Using an Original BMW Line

Using an original water line in the N54 engine offers a number of practical technical benefits:

• Factory Fitment to the BMW cooling system – compatibility with the stock engine and equipment architecture.
• Stable coolant flow, which helps maintain optimal engine operating temperature.
• Reduced risk of line stress and twisting due to correct geometry and support points.
• Direct replacement of a worn or leaking component without installation modifications.

For workshops and private users, this means efficient installation, predictable system behavior, and easier diagnosis of potential cooling-related faults.

Category Characteristics: BMW Lines, Hoses, and Pipes

This component belongs to the Lines, Hoses, and Pipes group, which are components responsible for transporting working fluids in the vehicle (coolant, power steering fluid, fuel, air). For the N54 engine, the correct selection of water lines is crucial for the durability of the engine, turbochargers, and associated equipment.

If you need other lines from the same group for your car, check the available BMW lines, hoses, and pipes to select a complete service solution within a single brand and category.

Product Condition and Service Application

The offered water line is a used part, allowing for economical repair of the cooling system while maintaining the original BMW design. This type of component is particularly useful for:

• addressing leaks in the cooling system,
• preventive maintenance on vehicles with higher mileage,
• restoring the complete coolant flow path after major engine repairs.

Replacing the water line is recommended whenever signs of corrosion, cracks, deformation, or previous makeshift repairs are visible. Using the original line geometry facilitates maintaining connection tightness and proper placement of clamps and connectors.

Technical Support and Parts Selection

When selecting powertrain components and their associated parts, it is advisable to use reliable technical sources. If you are interested in a broader context of drivetrain servicing, clutch, or engine-related components, the article Clutch and Dual-Mass Flywheel – Diagnostics and Parts Selection for the Drivetrain may be helpful, as it discusses practical aspects of selecting and operating components in passenger cars.