Ford Fiesta Mk7 Focus Mk3 Mondeo Mk5 Belt Tensioner 1.5 1.6 Petrol DS7G-6A228-AA

Ford Fiesta Mk7 Focus Mk3 Mondeo Mk5 Belt Tensioner 1.5 1.6 Petrol is an original component from the Tensioners and pulleys group, designed for Ford petrol engines. It ensures stable operation of the accessory belt, which translates into reliable performance of key components and reduces the risk of failure during daily use.

Specifications and technical data

• SKU: 1800558
• Mark: Ford
• Condition: Used
• OEM Part Number: 1800558
• Substitutable numbers: DS7G-6A228-AA, DS7G6A228AA, 1800558
• Fuel type: Petrol
• Part type: Timing Belt Tensioner
• Category: Tensioners & Pulleys

Application and function in the accessory drive system

The belt tensioner in Fiesta Mk7, Focus Mk3, and Mondeo Mk5 models with 1.5 and 1.6 petrol engines is responsible for maintaining the correct belt tension across the entire RPM range. Stable belt guidance reduces slippage, noise, and uneven loads, which promotes a longer service life for the alternator, coolant pump, or air conditioning compressor. A properly selected tensioner is particularly important in petrol units, where load changes occur frequently and dynamically.

Original origin and fitment for Ford

The presented tensioner comes from the Ford range, which means factory-perfect fitment for the indicated models with no need for installation modifications. The design was engineered for specific power units, ensuring that the geometry, operating range, and spring characteristics comply with the manufacturer's requirements. An original component from the Tensioners and pulleys category allows you to maintain the accessory drive system's operating parameters at the level specified in the service documentation.

Technical characteristics and benefits of installation

The belt tensioner for petrol engines in the listed Ford models is designed as a continuously operating component that compensates for belt stretching during operation. The use of a properly selected spring mechanism and guide pulley results in:

• stable belt tension across a wide range of engine operating temperatures,
• reduced risk of belt slippage during sudden changes in RPM,
• reduction of vibrations transmitted to engine accessories,
• more uniform loading of the alternator bearings and other units.

As a result, installing a tensioner dedicated to 1.5 and 1.6 petrol units helps maintain predictable operating conditions for the entire system, which is important for both daily city driving and longer trips.

Condition, verification, and part selection

The offered item is in Used condition, meaning it has been removed from a vehicle and verified for suitability for further use. This type of part is a good solution for vehicle maintenance where maintaining original specifications while optimizing costs is a priority. Before installation, it is recommended to perform a standard check of the belt path and other system components to fully utilize the potential of the installed tensioner.

Ford tensioners and pulleys – expansion and system modernization

If you are planning a comprehensive repair or modernization of the engine area in your Ford and need other components from the same group, such as additional tensioners, guide pulleys, or belt routing elements, check out the available parts in the Ford tensioners and pulleys category.

Technical support and knowledge about engine accessories

When working on the accessory drive, it is also worth paying attention to the condition of the alternator, which works directly with the belt and tensioner. To better assess when it is worth choosing a component from the secondary market, the following practical guide will be helpful: When is it worth replacing an alternator with a used one: a practical guide for drivers. This will allow you to plan service in a consistent manner and reduce the risk of unforeseen vehicle downtime.