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BMW X5 Series E53 3.0i M54 Engine Wiring Loom Harness Module 7503611 7503617
SKU: 7503611
Product from a certified dismantling facility
Condition:
Used
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BMW X5 Series E53 3.0i M54 Engine Wiring Loom Harness Module is an original engine wiring harness designed for the M54 unit in the X5 E53 model. The item belongs to the Cables, harnesses and connectors group and is a key component responsible for a stable electrical connection between control modules and engine accessories, which translates into predictable powertrain operation.
Specifications and technical data
- SKU: 7503611
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 7503611
- Substitutable numbers: 12517503611, 7503611, 12517503617, 7503617
- Category: Wiring Harnesses, Cables & Connectors
Purpose and function in the engine system
The presented engine harness is designed specifically for the M54 petrol unit in the BMW X5 E53, ensuring proper signal routing to sensors, injectors, ignition coils, and control modules. The appropriate wiring architecture minimizes interference, supports correct OBD diagnostics, and ensures stable engine control unit operation.
As an original BMW part, the harness maintains the factory wire routing geometry, which facilitates installation in the engine bay and reduces the risk of abrasion or insulation overheating. This is particularly important in vehicles with long-term operation, where proper installation layout affects the reliability of the entire system.
Construction and technical advantages
The harness belongs to the Cables, harnesses and connectors category, meaning it includes an integrated set of wires with factory connectors matched to the M54 engine accessories. The connectors used are profiled for specific sensors and modules, which limits the possibility of incorrect connection during installation.
- Factory connectors matched to M54 engine components in the BMW X5 E53.
- Logical division of harness branches facilitating wire routing in the engine bay.
- Properly selected wire cross-sections for signal and power circuits.
- Compatibility with the factory engine control unit and auxiliary modules.
By maintaining the original design, the harness supports stable electrical communication within the powertrain, which is important for eliminating starting problems, misfires, or sporadic sensor errors.
Condition, selection and service application
The item is offered as a used BMW part, which in the case of engine harnesses often represents a reasonable compromise between cost and maintaining factory build quality. In workshop practice, such a harness is used for repairing installations after mechanical or thermal damage, or after unsuccessful electrical modifications.
Before installation, a standard visual inspection of the insulation, connectors, and mounting points is recommended, followed by matching to the specific configuration of the X5 E53 3.0i M54 vehicle. A properly selected harness allows for restoring correct power supply and control signals without the need to build an installation from scratch, which significantly shortens repair time.
Benefits of using an original BMW harness
Using an original engine harness in the BMW X5 E53 3.0i M54 brings a number of practical service and operational benefits:
- Factory fit – compliance with the electrical architecture of the specific model and engine.
- Easier installation – wires routed according to factory paths, with prepared mounting points.
- Consistency with diagnostics – correct circuit assignment to the controller facilitates work with BMW testers.
- Reduction of compatibility issues – no need for modifications to connectors or wire lengths.
For users considering broader modifications or upgrades within the drivetrain and suspension, information on the differences between standard and sports BMW components may also be useful – you can find them in the article BMW M Performance: what is the difference between BMW M components and standard ones?.
Expanding work within the BMW engine installation
If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other items from the same group, such as additional harnesses, sensor wires, or module connectors, check the available parts in the BMW cables, harnesses and connectors category.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.
