A metal part with a hole in it and a square plate.

FL35 Stainless Steel Mixing Elbow 3.5″ OD

This HDI Marine item replaces Ford Lehman PN 1A371 and American Diesel PN 810-0371

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A metal gasket that is attached to the side of a car.

GFL3 Graphite Exhaust Gasket for Ford Lehman 3″ and 3.5″ Elbows

This HDI Marine item replaces Ford Lehman PN 1C26 and American Diesel PN 812-0026

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