Mitsubishi 4G63-8V Engine Cylinder Head - OE: MD099086, MD188956
Engine Model: Mitsubishi 4G63-8V (SOHC 8-valve)
Part Numbers (OE): MD099086, MD188956
Applicable Engines
This cylinder head is crafted specifically for the Mitsubishi 4G63 2.0L single overhead cam (SOHC) 8-valve engine. Renowned for its durability and smooth performance, the 4G63-8V engine powers a variety of Mitsubishi vehicles, including older L300 vans and third-generation Galant models, providing reliable operation in both daily driving and commercial use.
Compatible Mitsubishi Models
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Mitsubishi L300 (1996–2011)
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Mitsubishi Galant III (E1_A) (1986–1995)
Key Functions of the Cylinder Head
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Sealed Combustion Chamber: Forms a tight seal with the cylinder block to facilitate efficient fuel combustion, maximizing engine output.
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Valve Control: Controls the intake and exhaust valves, ensuring precise airflow management and maintaining smooth engine cycles.
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Cooling and Lubrication Channels: Equipped with oil and coolant channels to effectively dissipate heat and reduce engine wear.
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Fuel Injector and Spark Plug Mounting: Provides secure placement for injectors and spark plugs, enabling optimal fuel delivery and ignition for the 4G63-8V engine.
Material
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Aluminum Alloy or Cast Iron: Constructed from high-quality cast iron or aluminum alloy for enhanced heat resistance and structural integrity, ideal for the high-stress environment of a diesel engine.
Notable Features
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Durability Under High Temperature and Pressure: Engineered to withstand high temperatures and pressures typical of turbocharged engines, ensuring long-lasting performance.
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Enhanced Sealing: Paired with a cylinder head gasket to maintain a strong seal, preventing fuel, coolant, and oil leaks and optimizing combustion efficiency.
Maintenance and Replacement
Regular maintenance of the 4G63-8V cylinder head is recommended to avoid issues such as overheating, oil leaks, or head gasket failure. If signs of wear are evident, consider replacing the cylinder head to ensure peak performance and prolong engine life.
Summary
The Mitsubishi 4G63-8V engine cylinder head (OE: MD099086, MD188956) is integral to the reliable operation of Mitsubishi’s 4G63 engines, used in models like the L300 and Galant III. With enhanced cooling and high-temperature resistance, this cylinder head supports optimal fuel combustion and durability, making it essential for long-lasting engine performance.
