B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20301 interior-body-parts 1978-1980 Oldsmobile Cutlass Supreme

1978-1980 Oldsmobile Cutlass Supreme

Part Number: 17273

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B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20301 interior-body-parts 1978-1980 Oldsmobile Cutlass SupremeOverview: B&M Racing & Performance brings you this billet aluminum speedometer port block off plug that fits GM TH400 transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna N rubber o ring. It features a black Mil Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy