Fits Caterpillar SPACER 2S3770 NEWOne New Aftermarket Replacement Exhaust Manifold Spacer Fits Caterpillar (Fits CAT) Equipment This aftermarket replacement exhaust manifold spacer (replaces OEM part number 2S3770 2S 3770) is used in the exhaust manifold assembly on Fits Caterpillar 3406 series engines. The spacer seats between exhaust manifold sections, maintaining proper bolt spacing and sealing integrity in high temperature exhaust applications. It is constructed of steel with a
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