Exhaust Valve MD198406 for Engine

VALVE EXHAUST MD198406 for MITSUBISHI Engines – High-Performance Exhaust Valve Assembly

Engine efficiency and performance hinge on precision-engineered components like the VALVE EXHAUST MD198406, a critical part of internal combustion systems found in MITSUBISHI vehicles. This specialized exhaust valve ensures optimal gas flow dynamics by releasing spent combustion gases from the cylinder after ignition, directly impacting engine responsiveness, fuel economy, and emissions control. Designed with durability and thermal resistance in mind, it supports consistent engine cycles under demanding operating conditions.

Key features include a hardened stem and seat design for extended service life, compatibility with high-performance Camshaft profiles, and precise timing synchronization to maintain peak volumetric efficiency. Unlike generic replacements, this OEM-grade component integrates seamlessly into MITSUBISHI’s intake-exhaust cycle, minimizing mechanical wear while enhancing airflow management across the entire engine lifecycle.

As a core element of the valvetrain system, the exhaust valve works in tandem with the intake valve—another essential mechanism that draws in air-fuel mixtures during the induction stroke. While the intake valve governs mixture entry, the exhaust valve manages post-combustion gas evacuation, preventing backpressure buildup and ensuring clean Combustion Chamber refilling. Both valves operate via camshaft actuation, making proper alignment and material quality vital for sustained engine health. The MD198406 model specifically addresses common issues such as valve leakage, carbon deposits, and thermal fatigue, offering a reliable upgrade path for maintenance or performance tuning.

Common applications span various MITSUBISHI models including the Lancer, Outlander, and Eclipse, particularly those equipped with 2.0L and 2.4L inline-four engines. Ideal for automotive repair shops, DIY mechanics, and fleet managers seeking long-term reliability, this exhaust valve is engineered for use in passenger cars, light-duty trucks, and compact SUVs where consistent engine output matters most.

Users report improved throttle response, reduced misfires, and smoother idling after installation. Many note that the valve's robust construction minimizes the need for frequent adjustments—a key advantage over cheaper alternatives. Whether replacing worn parts or upgrading an aging engine, customers appreciate how this component restores original factory performance without compromising emissions compliance.

Q: Is this valve suitable for both gasoline and diesel engines? A: It is specifically designed for gasoline-powered MITSUBISHI engines; diesel variants require different materials due to higher compression ratios and temperatures. Q: How often should I inspect or replace the exhaust valve? A: Under normal driving conditions, inspection every 60,000 miles is recommended, with replacement typically needed between 100,000–150,000 miles depending on usage patterns. Q: Can I install this myself without professional tools? A: Basic mechanical knowledge is sufficient, but a torque wrench and Valve Spring Compressor are advised for safe and accurate assembly.

Product Categories : Engine Valve Train > Valve Intake/Valve Exhaust