One New Fuel Gauge made to fit John Deere Tractor Models: 2510 (Gas & Diesel), 8020 (Gas & Diesel), 3020 (Gas & Diesel, up to SN: 122999), 4020 (Gas & Diesel, up to SN: 200999), 5010 (Sn: 8000 & up), 5020 (Gas & Diesel, up to SN: 24999)Also made to fit John Deere Industrial Construction Models: 500, 500A (To Sn: 123113), 600Also made to fit John Deere Skidder Models: 440 (to Sn: 49999), 440A (to Sn: 49999), 440B (to Sn: 49999)Also made to fit John Deere Crawler Models: 1010 (SN: 42001 & Up; Gas & Diesel), 2010 (SN: 42001 & Up; Gas & Diesel)12-Volt Positive groundFor tractors with POSITIVE GROUND systems1.205" housing depthResistance 0 - 30 (ohms)Replaces Part Numbers: GAH30-0061, AR46271, R34262, RE54427