Ford Fiesta Mk7 Engine Oil Filler Cap Cover Screw YS4G-6766-HA

Ford Fiesta Mk7 Engine Oil Filler Cap Cover Screw is an original component from the Oil drain and filler caps and dipsticks group, designed for a tight seal of the oil filler opening in the power unit. The precise design ensures stable mounting, and a properly selected sealing profile helps maintain correct engine operating conditions and reduces the risk of leaks.

Specifications and technical data

• SKU: 2503811-1
• Mark: Ford
• Condition: Used
• OEM Part Number: 2503811
• Substitutable numbers: 2503811, YS4G-6766-HA, YS4G6766HA
• Part type: Oil Filler Cap
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and technical function

The presented oil filler cap has been designed specifically for engines used in the Ford Fiesta Mk7, maintaining the manufacturer's requirements regarding geometry, mounting method, and tightness. The component plays a key role in daily operation – it allows for convenient oil refilling and, once tightened, protects the lubrication system from external contaminants. Thanks to its factory origin, the cap works with the valve cover socket in a predictable and repeatable manner, which is important during frequent oil level checks. The screw design ensures secure tightening, and the properly shaped head facilitates operation even in the limited space of the engine compartment.

Benefits of using an original oil filler cap

Using an original oil filler cap in a Ford Fiesta Mk7 translates into a number of practical operational benefits:

• maintaining the factory tightness of the lubrication system in the oil filler area,
• secure mounting thanks to a matched thread and socket shape,
• reduction of the risk of blow-by and oil leaks in the upper part of the engine,
• easy operation during periodic inspections and oil top-ups,
• consistency with other Ford engine accessory components. For users who pay attention to the technical correctness of repairs, choosing an original cap from this group of parts is a simple way to maintain stable operating conditions of the power unit and the aesthetic appearance of the engine compartment.

Product characteristics and condition

The offered cap belongs to the Oil drain and filler caps and dipsticks group, which means it has been designed to work in direct contact with engine oil and variable temperatures. The material and construction are adapted to the typical thermal and mechanical loads occurring in this area, which promotes long-term, stable operation. The component comes from disassembly and is offered as a used part, which is a beneficial solution for drivers looking for a factory component at a reasonable price. A used oil filler cap is a good addition to service repairs where the priority is to maintain the original manufacturer's specification while optimizing costs.

Matching by OEM number and selection support

To ensure that the cap will work properly with the specific engine version in your Ford, it is worth verifying compatibility by the OEM number and interchangeable numbers provided in the technical specification. Such an approach minimizes the risk of purchasing an element with a different thread profile or diameter, which could hinder installation. If you want to organize the process of selecting parts by catalog numbers and avoid mistakes when ordering, a practical guide may be helpful – check the material: how to choose the right car part by VIN and OEM number. You will find a step-by-step procedure and tips on what to pay attention to when buying parts from the secondary market.

Related components and service knowledge

The lubrication system and the engine cooling system are closely linked – the correct oil level and its tight retention in the power unit support a stable operating temperature. If you are interested in a broader context of the impact of service maintenance on the durability of the power unit, it is worth reading the article: Engine cooling system – overheating, repair, and used radiators. This will allow you to better understand how taking care of basic maintenance components translates into engine longevity. If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other components from the same group, such as oil drain plugs, filler caps, or dipsticks, check the available parts in the Ford oil drain and filler caps and dipsticks category.