{"product_id":"cat-nox-sensor-539-0117-c6-6-320f-323f-scr-engine-out-sensor","title":"NOx-Stickoxidsensor für CAT Caterpillar Motor C6.6 320F 323F 539-0117","description":"\u003cp data-start=\"143\" data-end=\"249\"\u003e\u003cstrong data-start=\"143\" data-end=\"155\"\u003eFITMENT:\u003c\/strong\u003e\u003cbr data-start=\"155\" data-end=\"158\"\u003eCompatible with Caterpillar machines equipped with SCR aftertreatment systems, including:\u003c\/p\u003e\n\u003cul data-start=\"250\" data-end=\"492\"\u003e\n\u003cli data-section-id=\"1vp0z8u\" data-start=\"250\" data-end=\"270\"\u003eCAT C6.6 engines\u003c\/li\u003e\n\u003cli data-section-id=\"dm5xg6\" data-start=\"271\" data-end=\"297\"\u003e320F \/ 323F excavators\u003c\/li\u003e\n\u003cli data-section-id=\"y0gcgq\" data-start=\"298\" data-end=\"336\"\u003e315F \/ 316F \/ 318F series machines\u003c\/li\u003e\n\u003cli data-section-id=\"123axli\" data-start=\"337\" data-end=\"382\"\u003e924K \/ 926M \/ 938M loaders (SCR variants)\u003c\/li\u003e\n\u003cli data-section-id=\"1bpka27\" data-start=\"383\" data-end=\"434\"\u003e740 \/ 745 articulated trucks (system dependent)\u003c\/li\u003e\n\u003cli data-section-id=\"1lzp50\" data-start=\"435\" data-end=\"492\"\u003eVarious CAT construction and industrial SCR platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"494\" data-end=\"526\"\u003eOEM \/ Cross reference numbers:\u003c\/p\u003e\n\u003cul data-start=\"527\" data-end=\"679\"\u003e\n\u003cli data-section-id=\"1krd1ek\" data-start=\"527\" data-end=\"568\"\u003e\u003cstrong data-start=\"529\" data-end=\"566\"\u003e539-0117 \/ 539-0118 \/ 539-0117-03\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"mb8gsl\" data-start=\"569\" data-end=\"630\"\u003e\u003cstrong data-start=\"571\" data-end=\"628\"\u003e5WK96725A (Continental equivalent platform reference)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"161soth\" data-start=\"631\" data-end=\"679\"\u003eCAT NOx Sensor Group (Engine-out SCR system)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"681\" data-end=\"844\"\u003e📌 Verified OEM source confirms this is a \u003cstrong data-start=\"723\" data-end=\"770\"\u003eCat NOx Emissions Sensor Group (engine-out)\u003c\/strong\u003e used for SCR closed-loop control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"846\" data-end=\"849\"\u003e\n\u003cp data-start=\"851\" data-end=\"866\"\u003e\u003cstrong data-start=\"851\" data-end=\"864\"\u003eFUNCTION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"867\" data-end=\"1234\"\u003e\n\u003cli data-section-id=\"qfuhn7\" data-start=\"867\" data-end=\"947\"\u003eMeasures nitrogen oxide (NOx) levels in engine exhaust (before SCR catalyst)\u003c\/li\u003e\n\u003cli data-section-id=\"1o45om4\" data-start=\"948\" data-end=\"1007\"\u003eSends real-time data to ECU via SAE J1939 communication\u003c\/li\u003e\n\u003cli data-section-id=\"38949i\" data-start=\"1008\" data-end=\"1059\"\u003eProvides feedback for DEF\/AdBlue dosing control\u003c\/li\u003e\n\u003cli data-section-id=\"f4revb\" data-start=\"1060\" data-end=\"1113\"\u003eMeasures oxygen content in exhaust gases (\u0026lt;20.9%)\u003c\/li\u003e\n\u003cli data-section-id=\"fuvux7\" data-start=\"1114\" data-end=\"1192\"\u003eSupports self-diagnostics for wiring faults (open\/short circuit detection)\u003c\/li\u003e\n\u003cli data-section-id=\"1dxalcd\" data-start=\"1193\" data-end=\"1234\"\u003eEnsures EPA \/ EU emissions compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1236\" data-end=\"1239\"\u003e\n\u003cp data-start=\"1241\" data-end=\"1269\"\u003e\u003cstrong data-start=\"1241\" data-end=\"1267\"\u003eINSTALLATION POSITION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1270\" data-end=\"1433\"\u003e\n\u003cli data-section-id=\"refoia\" data-start=\"1270\" data-end=\"1310\"\u003e\u003cstrong data-start=\"1272\" data-end=\"1308\"\u003eEngine-out (upstream) NOx sensor\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"2nypha\" data-start=\"1311\" data-end=\"1360\"\u003eMounted before SCR catalyst in exhaust system\u003c\/li\u003e\n\u003cli data-section-id=\"4biace\" data-start=\"1361\" data-end=\"1433\"\u003eWorks together with downstream NOx sensor for full emissions control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1435\" data-end=\"1438\"\u003e\n\u003cp data-start=\"1440\" data-end=\"1558\"\u003e\u003cstrong data-start=\"1440\" data-end=\"1459\"\u003eIMPORTANT NOTE:\u003c\/strong\u003e\u003cbr data-start=\"1459\" data-end=\"1462\"\u003eCaterpillar NOx sensors like 539-0117 are part of a \u003cstrong data-start=\"1514\" data-end=\"1546\"\u003esmart sensor assembly system\u003c\/strong\u003e, meaning:\u003c\/p\u003e\n\u003cul data-start=\"1559\" data-end=\"1808\"\u003e\n\u003cli data-section-id=\"1sn61qu\" data-start=\"1559\" data-end=\"1608\"\u003eIncludes probe + electronics + harness module\u003c\/li\u003e\n\u003cli data-section-id=\"nm7r1v\" data-start=\"1609\" data-end=\"1642\"\u003eNot a simple plug-only sensor\u003c\/li\u003e\n\u003cli data-section-id=\"1cjy60g\" data-start=\"1643\" data-end=\"1712\"\u003eMust match engine family (C6.6 \/ C7 \/ C9 calibration differences)\u003c\/li\u003e\n\u003cli data-section-id=\"128stvk\" data-start=\"1713\" data-end=\"1761\"\u003eInlet\/outlet sensors are NOT interchangeable\u003c\/li\u003e\n\u003cli data-section-id=\"1otwm8c\" data-start=\"1762\" data-end=\"1808\"\u003eECU software defines correct configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1810\" data-end=\"1883\"\u003eIncorrect installation can cause SCR faults, derate, or emissions errors.\u003c\/p\u003e\n\u003chr data-start=\"1885\" data-end=\"1888\"\u003e\n\u003cp data-start=\"1890\" data-end=\"1900\"\u003e\u003cstrong data-start=\"1890\" data-end=\"1898\"\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1902\" data-end=\"2020\"\u003e\u003cstrong data-start=\"1902\" data-end=\"1941\"\u003eQ1: Is this inlet or outlet sensor?\u003c\/strong\u003e\u003cbr data-start=\"1941\" data-end=\"1944\"\u003eA1: 539-0117 \/ 539-0118 is typically an \u003cstrong data-start=\"1984\" data-end=\"2017\"\u003eengine-out (inlet) NOx sensor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2022\" data-end=\"2126\"\u003e\u003cstrong data-start=\"2022\" data-end=\"2056\"\u003eQ2: What machines does it fit?\u003c\/strong\u003e\u003cbr data-start=\"2056\" data-end=\"2059\"\u003eA2: CAT 320F, 323F, and other C6.6 powered construction machines.\u003c\/p\u003e\n\u003cp data-start=\"2128\" data-end=\"2247\"\u003e\u003cstrong data-start=\"2128\" data-end=\"2162\"\u003eQ3: What are failure symptoms?\u003c\/strong\u003e\u003cbr data-start=\"2162\" data-end=\"2165\"\u003eA3: SCR warning light, NOx sensor fault codes, engine derate, DEF system errors.\u003c\/p\u003e\n\u003cp data-start=\"2249\" data-end=\"2390\"\u003e\u003cstrong data-start=\"2249\" data-end=\"2299\"\u003eQ4: Are 539-0117 and 539-0118 interchangeable?\u003c\/strong\u003e\u003cbr data-start=\"2299\" data-end=\"2302\"\u003eA4: They are part of the same sensor family but may differ in calibration or position.\u003c\/p\u003e\n\u003cp data-start=\"2392\" data-end=\"2516\"\u003e\u003cstrong data-start=\"2392\" data-end=\"2438\"\u003eQ5: Does installation require programming?\u003c\/strong\u003e\u003cbr data-start=\"2438\" data-end=\"2441\"\u003eA5: Some CAT machines require SCR reset or calibration after replacement.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51652443734148,"sku":"539-0117","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_8f22728b-4611-4234-b25f-cda89779923c.jpg?v=1773993142","url":"https:\/\/www.jslook.com\/de\/products\/cat-nox-sensor-539-0117-c6-6-320f-323f-scr-engine-out-sensor","provider":"ASHENG","version":"1.0","type":"link"}