BMW 5 6 7 Series E60 E63 E65 N62 Petrol Engine Water Pump Pulley 7504077

BMW 5 6 7 Series E60 E63 E65 N62 Petrol Engine Water Pump Pulley is an original accessory drive system component designed for precise operation with the coolant pump. Thanks to its factory geometry and properly selected groove profile, it ensures stable belt drive transmission and correct water pump operation under demanding operating conditions. This is a practical solution for users who want to maintain consistency with BMW factory specifications in N62 petrol engines.

Specifications and technical data

• SKU: 7504077
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7504077
• Substitutable numbers: 11517504077, 7504077
• Fuel type: Petrol
• Category: Water Pumps

Purpose and function in the cooling system

The presented pulley works with the water pump in the N62 petrol engine used in BMW 5, 6, and 7 Series models. Its task is to mechanically transfer torque from the accessory belt to the pump impeller, which enables the circulation of coolant in the engine block and radiator. A properly selected pulley:

• maintains the correct water pump speed ratio relative to the crankshaft,
• ensures stable belt tracking in the axis, without unwanted vibrations,
• reduces the risk of belt slippage under variable engine loads,
• supports the maintenance of the optimal operating temperature of the N62 unit in city and highway driving.

Benefits of using an original pulley

Using an original water pump pulley in a BMW N62 petrol engine allows you to maintain cooling system operating parameters in accordance with the manufacturer's requirements. Key advantages include:

• Factory fit for the water pump and accessory belt – no modifications required, maintaining proper alignment and geometry.
• Compatibility with the accessory drive system in N62 petrol engines – consistency with other components, such as tensioners and idler pulleys.
• Reduction of the risk of engine overheating resulting from incorrect water pump operation.
• Ability to use existing mounts and standard BMW service procedures.

For users who prioritize a technically correct and durable cooling system repair, choosing an original pulley is a safe and predictable solution in terms of operation.

Component condition and service application

The offered pulley is a dismantled part intended for reinstallation in BMW vehicles with an N62 petrol engine where replacement of the water pump drive component is necessary. This type of used part will work particularly well in situations where:

• the existing pulley has become worn, cracked, or deformed,
• there are noises or uneven operation of the accessory belt in the area of the water pump,
• comprehensive cooling system maintenance is being performed, including the replacement of the water pump and belt.

Selecting the component according to the manufacturer's markings allows for maintaining consistency with BMW service documentation and facilitates identification in parts catalogs.

Technical support and selection by numbers

When planning service work on a petrol engine, it is worth paying attention to the compatibility of the pulley with the water pump used and other accessory drive components. Comparing part numbers and verification by OEM number or VIN can be helpful. Additional information on selecting components for supply systems and related sub-assemblies can be found in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses a practical approach to identifying parts by numbers and technical documentation.

Related items from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional pulleys, water pump drive elements, or supplementary cooling system components, check the available parts in the BMW Water Pumps category.