Mitsubishi MD303148 — Valve Cover Gasket
Overview
Valve cover gasket Mitsubishi MD303148 seals the interface between the cylinder head and the rocker cover. Manufactured from high-temperature FKM elastomer, this component withstands synthetic engine oil, blow-by gases, and operating temperatures from -40 °C to +160 °C. The part features a molded profile with a 3.8 mm thickness designed for exact placement in head grooves. OEM part number MD303148 supersedes previous numbers MD198128, MD118128, and MD050312. It stops oil seepage, maintains crankcase pressure stability, and isolates spark plug wells from fluid ingress. Tight perimeter sealing keeps abrasive airborne dirt away from internal valvetrain components.
Fitment covers Mitsubishi Lancer Evolution I–IX equipped with 4G63 and 4G63T 2.0L engines, Eclipse I–II 2.0L DOHC, Galant V–VI 2.0L/2.4L, Outlander I 2.0L, and Space Runner 2.0L models produced from 1992 to 2007. Replacement is carried out when oil weeping appears along the joint, during engine misfires caused by oil-soaked spark plugs, or whenever removing the cover for timing belt service or valve adjustments. Repeated heat exposure causes rubber hardening, dimensional shrinkage, and cracking over time. Installing gasket MD303148 restores precise factory sealing specifications without using auxiliary sealant.
Mitsubishi MD303148 — valve cover gasket. 5 offers available, starting from 25.28 USD.
Specifications
Manufacturer — Mitsubishi. Article number — MD303148. Name — Valve Cover Gasket. Offers — 5. From — 25.28 USD.
Compatible cross-references
Replacements and analogues: AJUSA 11057100, BGA RC1322, CORTECO 440235P, ELRING 354200.
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