The New Holland 81820903 Starter Relay Housing is a genuine OEM component designed for various Ford and New Holland tractor models, including the 1000, 1100, 1200, 1210, 1300, 1310, 1500, 1510, 1600, 1610, 1700, 1710, 1900, 1910, 2110, and 3415 series. This essential housing protects the starter relay, ensuring reliable engine starting. It measures approximately 95 mm in length, 51 mm in width, and 25 mm in height, with a weight of about 0.05 kg. This part is also cross-referenced with Ford OEM numbers E7NN7N041AA and 83936602.