Specification:
Overall length: 61 mm (2.4 inch)
Probe Length: 20 mm (0.78 inch)
Thread size is 7/8" with a 12 pitch

Part Number:
2666103, 2666108, 266108

Cross Part Number:
AAU8491, AR63103, 1446935M1, 3583543M1, 3583543M2, 3637651M1, 893501M91, K138200, K138300, K172400, K179600, K262495, K928523, K928528, 133757, 1854102, 124460-77910, C5NE9A436A, E1NN9A436AA, 81806046, 83933675, 87800843, 218349A1, 3112805R91, 3112805R92, 3118299R1, 31-2760477, 3583453M2, 3583543V2, A77616, C5NE9A436AGV, FUE-F-5469A436, PG2666108, UK1796, 1854040, 1854050, 1854125, C5NE9A436, 603922, 1703-3303

Application:
Compatible with Perkins 3.152, 4.203, 4.236, 4.248, 6.354, 1004.4, 1006.6, 1004, 1006, V8.640
Compatible with JCB Backhoe 1400B, 1550B, 1600B, 1700B, 214, 215, 216, 217, 3C, 3CX, 3D
Compatible with John Deere 840, 940, 1040, 1140, 1640, 1840, 2040, 2040S, 2140, 2150, 2255, 2350, 2550, 2750
Compatible with Challenger MT425, MT434, MT444, MT445 (GBR), MT454, MT455, MT464, MT465 (GBR), MT565, MT635, MT645, MT655, MT665
Compatible with Fiat M100, M115, M135, M160