This tachometer has a glass lens and a IH red painted metal case with a diameter of (3 3/8") 85MM
It has mounting studs and brackets
Amp meter gauge replaces IH part number: 42383DC
Except for T 340 Diesel I think is positive ground
Temperature Gauge: mechanical fits 2 1/16" / (52mm) dash opening
Oil Gauge Compatible with Farmall H, M, I, O, W4-9 T6 CIH 1939 - 1946 Early This tachometer has a glassThis oil gauge replaces IH part number: 43987 DB Fits dash opening of 2" 52mm opening, with MOUNTING STUDS for dash! Fits Farmall IH Tractors: H, M, W4 9 Series, T6, I, O ( 1936 1946 Early ) This gauge has Yellow Zinc "Cad" Plating for corrosion resistance protection! The gauge has 1 8" NPT male nipple, mounting studs and bracket, rubber gasket seal for mounting flush for dash mounting. Gauge has CIH logo on dial with red and white zones. It has a 6