Taper Plug for Discovery 1 (1989 – 1998) – 3290

Thomas Performance Ltd Verified independent store

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This taper plug is a threaded sealing component used to close off unused or redundant ports, galleries, and apertures in engine blocks, cylinder heads, and ancillary housings. On L and Rover applications, taper plugs are commonly found sealing oil galleries, coolant passages, and casting holes in the block; a weeping or displaced plug can result in oil or coolant loss and potential component damage. Correct thread form and taper angle are essential to achieving a reliable seal without distortion of the surrounding casting. Key Features Tapered thread profile provides a self-sealing mechanical fit when torqued correctly, without requiring additional sealant in most applications Suitable for use in oil gallery and coolant passage applications across a range of Land Rover engines and chassis components Manufactured to fit original port dimensions across the specified vehicle range Check surrounding gallery plugs and adjacent sealing points when replacing - multiple plugs of the same size are often used within a single engine block Vehicle Fitment Fits Discovery 1 (1989–1998), Range Rover Classic, Defender 90, Defender 110, and Defender 130 (1983–2006) across fixings applications. Not sure about fitment? Feel free to get in touch at [email protected] Show more