Description: Performance: The air compressor parts are made of metal materials,have better working performanceSize: The total bore distance of the air compressor valve plate parts is about 48 x 72mm / 1.9 x 2.8in, the distance of the tongue positioning hole is about 20mm / 0.8in, the length of the tongue plate is about 57mm / 2.2in and the distance of the positioning hole of the V-plate is about 50mm / 2inSpecifications: The package includes a flap valve plate and a V-shaped plate, suitable for cylinder head: 42/47/48 specifications,, it is an ideal accessory for replacementAir Compressor Valve Plate: All the air compressor parts are made of cast iron, which has good quality and toughness, good working performance, very for long term use and very easy to installComprehensive Set: The compressor valve plate set includes a tongue valve plate and a V-shaped valve plate, making it the ideal accessory for compressor replacement Specification: Material: Metal Size Chart: 4.8cmx6.2cm/1.89inchx2.44inch Package Includes: 1 SetAir Compressor Valve Plate Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.