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Genuine Ford Parts | Head Gasket Full Kit | Ford Fiesta MK6 ST150

Genuine Ford Parts | Head Gasket Full Kit | Ford Fiesta MK6 ST150

SKU: GFPHGSST150
DESCRIPTION
 
Technical Specification: Genuine Ford OE Gasket Set w/ MLS Head Gasket for ST150 Duratec MAZDA HE
 
Core Component: Ford Multi-Layer Steel (MLS) Cylinder Head Gasket (Gen 3 Technology)
 
This is not a traditional composite gasket. The Genuine Ford OE head gasket is an advanced Multi-Layer Steel (MLS) assembly, representing the third-generation of this technology as applied to high-performance, small-displacement Ford engines. It is the direct, factory-specified replacement for the Ford Fiesta ST150's 2.0L Duratec MAZDA HE engine, designed to manage the specific thermal and pressure dynamics of this high-compression, high-revving naturally aspirated unit.
 
Unique Technical Design & Rationale:
 
  • Tri-Layer Steel Construction: The gasket is formed from three ultra-thin, laser-welded layers of embossed, annealed (softened) spring steel.
    • Function: This creates a "live seal" that dynamically accommodates the different thermal expansion rates between the compacted graphite iron (CGI) cylinder block and the aluminum alloy cylinder head—a critical challenge in modern engine design. The embossments act as micro-springs, maintaining sealing force as components heat up and cool down.
  • Fluoroelastomer Micro-Coating: Each steel layer is coated with a precisely applied, vulcanized fluoroelastomer (FKM) material (e.g., Viton®) in a sub-10-micron layer.
    • Function: This coating fills microscopic machining grooves (RA finish) on the block and head surfaces, creating an immediate, low-clamp-force seal for combustion gases and coolant at startup. It cures in-situ with heat, enhancing long-term seal integrity without the need for abrasive, fiber-based facing materials that can wear.
  • Combustion Aperture Design: The cylinder bore apertures feature a patented double-stop design.
    • Function: The outermost steel layer extends slightly beyond the inner layers, creating a robust physical barrier against flame propagation and hot gas erosion at the most thermally stressed point. This is crucial for the ST150's 10.8:1 compression ratio.
  • Coolant & Oil Passage Sealing: Utilizes a combination of full-perimeter rubber bead moldingvulcanized directly onto the steel layers around all fluid passages.
    • Function: This provides a homogeneous, compressible seal specifically for coolant and oil, preventing the electrolytic corrosion and "cold weld" issues that can occur when dissimilar metals (Al head, Fe block) are in direct contact with coolant through a traditional gasket.
 
Why OE is Critical for the ST150:
The Duratec HE's head and block have unique, optimized surface finishes (RA values). The genuine Ford MLS gasket is engineered to mate perfectly with this specific micro-texture. Using a non-OE MLS gasket, even of similar construction, risks improper seating due to mismatched surface interaction, leading to premature failure.
Complete Kit Integrity:
This gasket set ensures system-wide compatibility and sealing harmony. The included components are formulated to work in concert with the MLS head gasket's thermal and mechanical behavior:
  • Valve Stem Oil Seals: PTFE-coated, high-temperature fluoroelastomer seals designed for precise hot oil control at sustained high RPM.
  • Thermostat Housing Gasket: Molded silicone rubber capable of withstanding repeated thermal cycling and EGT (Exhaust Gas Recirculation) coolant temperatures.
  • Intake Manifold Gaskets: Composite design providing an optimal seal for both air and vacuum passages, critical for accurate Mass Air Flow (MAF) and Manifold Absolute Pressure (MAP) sensor readings.
    £132.29Price
    Excluding VAT
    Quantity

    Returns Information: Thank you for choosing our products. We strive to provide excellent customer service, and we want to ensure your satisfaction with your purchase. Please review our return policy below: Timeframe: Our return policy lasts for 14 days from the date of delivery. If 14 days have passed since your purchase, we regret to inform you that we cannot offer a refund or exchange. Eligibility: To be eligible for a return, your item must meet the following criteria: It must be unused and in the same condition as when you received it. It should be in its original packaging, suitable for resale. The buyer is responsible for the return postage costs, and we recommend using a tracked and insured service. Restocking Fee and Outbound Postage: Please note that all returns are subject to a 10% restocking fee. Additionally, outbound postage fees will be deducted from the refunded amount. The handling fee covers the costs incurred in processing credit card payments, as well as postage and packaging costs. Exemptions: Certain types of goods are exempt from being returned. These items cannot be refunded once a special, non-stock item has been processed. Return Process: To initiate a return, please contact us as soon as possible. We will provide you with the necessary instructions to complete the return. Condition of Returned Items: Please ensure that any items being returned are not damaged and are in "as new" condition. Damaged or incomplete items may be subject to a partial refund. Refunds: Once we receive your returned item and complete the inspection, we will send you an email to notify you of its receipt. We will also inform you of the approval or rejection of your refund. If your refund is approved, we will process it, and the credit will be automatically applied to your credit card or original method of payment within a specific number of days. Sale and Group Buy Items: Please note that only regular-priced items are eligible for refunds. Unfortunately, sale and group buy items cannot be refunded. Damaged or Defective Goods: In the event that your goods arrive damaged or incomplete, please notify OC Motorsport within 24 hours of delivery. If we have mistakenly supplied incorrect parts, we will first attempt to provide you with the correct parts. If the correct products are unavailable, we will reimburse you the full purchase price within 14 days. However, please note that OC Motorsport is not responsible for any labour charges incurred during the fitment or removal of suspected incorrectly ordered or supplied parts. Warranties: Generally, warranties are provided by the product manufacturer and not by OC Motorsport. Therefore, we recommend reaching out to the product manufacturer as the primary point of contact. If you encounter any difficulties in contacting the manufacturer, please feel free to reach out to us, and we will do our best to assist you. Thank you for taking the time to familiarize yourself with our return policy. If you have any further questions or require assistance, please don't hesitate to contact us.

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