Ford Focus Mk2 Ignition Lock Cylinder Barrel + Key 3M5A-R3677-AB

Ford Focus Mk2 Ignition Lock Cylinder Barrel + Key is a component from the Interior locks and latches group, designed for the vehicle's starting and security system. It enables mechanical operation of the ignition switch, ensuring proper interaction with the steering column and the ignition lock system. This is a practical solution for users who want to restore the efficiency of the ignition system without the costly replacement of the entire column.

Specifications and technical data

• SKU: 3M5A-R3677-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: 3M5A-R3677-AB
• Substitutable numbers: 3M5A-R3677-AB, 3M5AR3677AB
• Part type: Door Lock Knob
• Category: Interior Locks & Lock Hardware

Purpose and function in the vehicle

The presented ignition lock cylinder barrel with key is dedicated to Ford brand models, in particular the Focus Mk2 generation, where it is responsible for physically starting the vehicle and working with the steering lock mechanism. This component transfers the movement of the key to the ignition insert, enabling the ignition, accessory power, and starter to be engaged according to the key positions.

By maintaining the original geometry and design, the barrel ensures proper fitment with the steering column housing and stable operation in daily use. This is particularly important in vehicles used intensively, where the precision of the ignition mechanism affects the comfort and safety of operation.

Construction and technical features

The ignition lock cylinder barrel integrated with the key belongs to the Interior locks and latches group, which means it is part of the vehicle's internal security system. The construction is based on a precise tumbler mechanism that works with the key profile, minimizing the risk of accidental rotation and improving wear resistance.

Properly selected materials and factory manufacturing technology promote stable operation in variable temperature conditions and with frequent use. The use of original geometry allows for maintaining the correct position of the key in the ignition, which reduces stress in the mechanism and decreases the risk of jamming.

Condition, origin, and identification

The component comes from the Ford parts line and is marked as a used product, which allows for an economical repair while maintaining compliance with factory solutions. As a result, it is a reasonable choice for users looking for a compromise between cost and functionality, while maintaining proper fitment to the ignition system.

The product has assigned catalog designations, including the OEM part number and available interchangeable numbers, which facilitates verification of compatibility with a specific vehicle equipment version. Additionally, in the store system, the part is identified by its SKU, which speeds up the selection and order processing.

Benefits of use and installation

The use of this ignition lock cylinder barrel with key allows for restoring the correct mechanical operation of the starting system components without the need to interfere with the entire electrical installation. In many cases, installation is limited to removing the steering column covers, taking out the worn insert, and installing the presented component, while following the service procedures appropriate for the given model.

The main advantages of the product include:

• maintaining the factory concept of the mechanical ignition lock,
• possibility of economical repair of the starting system,
• consistency with the steering column design in the Ford Focus Mk2,
• easier diagnostics and service thanks to clear catalog designations.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the interior security zone in your Ford and need other elements from the same group, such as door lock inserts, tailgate latches, or locking mechanisms, check the available parts in the Ford Interior locks and latches category.

For users interested in a broader approach to the topic of used parts and optimizing operating costs, it is worth checking out the guide on our blog: Used car parts for Mini Cooper – a way for style and savings. The article discusses practical aspects of selecting components from the secondary market, which can also be applied to other makes and models, including Ford vehicles.