New Sierra 58255P Amega Domed Tachometer, a popular SeaStar/Sierra gauge line formerly associated with Teleflex marine instrumentation. The Amega series is known for its clean black-dial appearance, low-profile black bezel, easy-to-read white pointer, and red/white graphics that match many factory and aftermarket boat dash layouts. This is a 3" marine analog tachometer designed to display engine speed from 0-7000 RPM for outboard and 4-stroke gas engine applications using O/B alternator or coil sender input.Manufacturer specifications include 12V DC operation, current draw of approximately 0.10-0.15 amp, operating temperature range of -40°C to +70°C, IP65-rated gauge front, 3.78" bezel outside diameter, 3.39" housing outside diameter, and 3.43" required dash cutout. It features through-dial and perimeter lighting for night readability, a scratch-resistant domed glass lens that helps shed water, and a black near-flush bezel. Optional Amega eyebrow or square bezels may be available separately for a modular dash look. Note: Mariner 30 and 40 HP 2-cylinder engines may require Mercury module 17461A2.Condition is New. This is an excellent replacement or upgrade tachometer for boat restoration, repower projects, console rebuilds, and matching Sierra Amega marine gauge sets. Exact part number 58255P is in strong demand because it fits a wide range of marine dash applications and new marine gauge pricing continues to rise. Keywords: Sierra tachometer, Amega gauge, boat tach, marine RPM gauge, Teleflex 58255P.#MarineParts #Sierra #Tachometer #NOS #BoatParts