Abstract: A molded oil pan gasket having an integrally formed pair of elastomeric side sections and pair of elastomeric end sections and a rail in each of the side sections. Each rail is an elongated rigid thermoplastic member having a generally flat main body of a first thickness and a plurality of integrally formed, longitudinally spaced stops. Each stop provides a fastener opening. The stops are of a height substantially greater than the first thickness, but less than the thickness of the associated side section. A plurality of apertures are formed in each rail for integrating the rail and the elastomer of the associated side section. A series of abutments and stiffening ribs are also disclosed.