BMW E38 E39 E53 540i 740i 4.4i M62 Petrol Engine Cylinder Head 1-4 1745458

BMW E38 E39 E53 540i 740i 4.4i M62 Petrol Engine Cylinder Head 1-4 is an original cylinder head from the M62 engine family for petrol-powered BMW vehicles, designed for cylinders 1–4. This is a solution for users who need a factory-fitted timing and combustion chamber component, ensuring the proper operation of the power unit and enabling professional engine repair or rebuild.

Specifications and technical data

• SKU: 1745458
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1745458
• Substitutable numbers: 11121745458, 1745458, BG
• Fuel type: Petrol
• Category: Cylinder Heads & Valve Covers

Application and compatibility

The presented cylinder head is designed for the 4.4 M62 petrol engine used in BMW 5 Series E39, 7 Series E38, and BMW X5 E53 models in 540i, 740i, and 4.4i versions. The component covers cylinders 1–4, which is important when assembling a pair of cylinder heads for a complete V8 engine. Thanks to its factory origin, the correct intake and exhaust ports, combustion chamber geometry, and accessory mounting points are maintained.

Construction and role in engine operation

The cylinder head in the M62 engine is responsible for valve operation, forming the combustion chamber, and properly guiding the fuel-air mixture and exhaust gases. In practice, this means that the engine's performance depends on its condition, including:

• stable compression in the cylinders,
• proper operation of intake and exhaust valves,
• efficient cylinder filling with the mixture,
• maintaining a seal between the engine block and the cooling and lubrication systems.

A properly selected cylinder head helps restore the correct operating culture of the M62 unit, reduce fuel consumption, and minimize the risk of further damage resulting from leaks or overheating.

Benefits of using an original BMW cylinder head

Choosing a component from the Cylinder Heads category dedicated to a specific BMW engine ensures that factory operating parameters are maintained. The original design guarantees:

• compatibility with factory oil and cooling channels,
• correct positioning of camshafts and accessories,
• proper guidance of spark plugs and seals,
• the ability to use standard gaskets and mounting elements.

For the M62 petrol engine, this is important both for repairs after overheating and for comprehensive engine rebuilding, where precise fitting of all components is essential.

Product characteristics and service purpose

The offered cylinder head is a used part, making it an attractive cost-effective solution while maintaining original BMW specifications. It is suitable for situations where the existing cylinder head has cracked, deformed, or suffered other damage preventing further use. The product is suitable as a base for professional workshop machining, such as resurfacing, valve seat regeneration, or guide replacement, in accordance with service procedures for M62 engines.

Selection support and additional information

When selecting a cylinder head for the V8 M62 engine, it is crucial to match it to the specific engine version and cylinder range. In case of doubt, it is worth verifying the engine code and accessory configuration to ensure full compatibility with the existing block and other timing components. If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional cylinder heads, covers, or mounting elements, check the available parts in the BMW Cylinder Heads category.

If you are interested in combining engine repair with a more environmentally conscious approach and want to better utilize the potential of used parts, it is worth exploring the topic of eco-tuning – you can find more information in the article Eco-tuning in practice: how to increase performance while reducing your carbon footprint using recycled parts.