Sierra white premier 3" tachometer. Sierra Part #62548P.• For Diesel Magnetic Pickup (90-180 Teeth) applications• Full automotive type lighting with no "halo" around dial edges• When illuminated, black dial grads become red and pointer lights red• White dial, black graduations/numerals (metrics in blue), red pointer staff• Scratch-resistant curved glass lens with polished stainless steel near-flushed bezel• U.S. and metric scales, with ISO symbols, where appropriate• Fog-resistant design complies with SAE J-1810• Dial Range: 0-4000 RPM• Sender Code: Requires "B" Near-flush bezel Full automotive-type lighting with no "halo" | White Premier 3" Tachometer, Diesel Magnetic Pickup in Red