Aluminium Alloy Oil Separator Kit for 2018-2020 Ford Expedition Models

This replacement oil separator is engineered as a direct-fit component for the Ford Expedition, specifically for model years 2018 through 2020. It serves a key role in the engine's crankcase ventilation system, working to separate oil vapour from blow-by gases before they are recirculated. By doing so, it helps protect vital engine components like the throttle body and intake valves from oil contamination, which can affect performance and efficiency over time. Supplied as a complete one-piece set, it is intended for those looking to upgrade or replace the stock part on their Expedition with a durable aluminium alloy alternative available in multiple colour finishes.

Features and Construction

This oil separator is built around its practical materials and specific vehicle application. The design focuses on providing a compatible upgrade that integrates with the Expedition's existing systems without modification.

Material and Build

The core housing of the separator is fabricated from aluminium alloy. This material choice offers a distinct practical advantage in the demanding under-bonnet environment: it is significantly lighter than many cast alternatives and provides inherent resistance to corrosion from heat, moisture, and typical road salts. The construction is centred on functionality, forming a sealed unit designed to effectively condense and separate oil from crankcase vapours. The available colour options—black, blue, red, and silver—allow for a degree of customisation to match other engine bay components or personal preference.

Size and Practical Fit

The primary design specification is its vehicle compatibility. It is engineered to be a direct replacement for the oil separator used on Ford Expedition models from the 2018, 2019, and 2020 production years. This means it should connect to the existing crankcase ventilation hoses and mounting points without the need for additional adapters or fabrication work, assuming the stock configuration is intact. As precise external dimensions are not provided, it is important to confirm that the unit's physical size and port locations are suitable for the available space in your specific Expedition's engine bay before proceeding with purchase and installation.

Uses and Placement

This component has a clear, technical purpose within the vehicle's engine system. Its use is tied directly to maintaining engine health and is a recognised modification within automotive maintenance and performance circles.

Event or Professional Use

For vehicles used in demanding conditions, such as frequent towing, off-road expeditions, or performance driving where engine stress is higher, an effective oil separator becomes increasingly important. Higher cylinder pressures can lead to increased blow-by gases. A well-functioning separator helps ensure that only clean air is recirculated, protecting sensitive sensors and maintaining optimal air/fuel ratios. It is a common upgrade among enthusiasts and professionals seeking to safeguard engine components from oil-based carbon buildup, which can degrade performance and fuel economy over extended periods of hard use.

Everyday Home Use

For the daily-driven Ford Expedition, this part serves as a proactive maintenance item. Replacing a worn or inefficient stock separator can help reduce the gradual accumulation of oil deposits in the intake system. This contributes to smoother engine operation, stable idling, and can be part of a regimen to extend the intervals between more intrusive cleaning services. It addresses a practical need for any owner wishing to maintain their vehicle's engine in good condition, potentially avoiding issues related to oil-contaminated intake air over the long term.

Benefits and Buying Value

The value of this product lies in its specific application, material durability, and the functional role it plays. It is a component purchase driven by vehicle compatibility and a practical maintenance goal.

Reuse and Low Maintenance

As a largely passive mechanical component with no moving parts, an aluminium oil separator requires minimal ongoing maintenance once correctly installed. Its durability stems from the corrosion resistance of the aluminium alloy, meaning it should not degrade or rust under normal engine bay conditions, offering a long service life. The value is realised through its continuous operation—working each time the engine runs to separate oil from the crankcase ventilation stream without requiring owner intervention or regular replacement.

Why Choose This Product

This product is selected for its explicit compatibility with 2018-2020 Ford Expeditions and its aluminium alloy construction. The choice between the four colour finishes (black, blue, red, silver) allows for minor personalisation. It is suited for an owner whose vehicle requires a replacement separator, or for an enthusiast seeking the perceived durability and lightweight benefits of an aluminium component over a stock plastic or composite part. It provides a single, complete solution tailored to a specific range of vehicles, removing guesswork regarding fitment for those model years.