{"product_id":"4-pin-7282-7040-10-yazaki-o2-sensor-male-connector-toyota-ac-assembly","title":"4-Pin 7282-7040-10 Yazaki Waterproof O2 Sensor Male Connector – Toyota AC Assembly Harness","description":"\u003ch2\u003e4-Pin 7282-7040-10 Yazaki Waterproof O2 Sensor Male Connector – Toyota Rear O2 Sensor \u0026amp; AC Assembly\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for Yazaki OEM part number \u003cstrong\u003e7282-7040-10\u003c\/strong\u003e, the 4-pin waterproof male plug connector used for rear (downstream) oxygen sensor harness connections and AC assembly wiring on Toyota vehicles. The 7282-7040-10 is the male plug (harness side); the mating female socket on the sensor is \u003cstrong\u003e7283-7040-10\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 7282-7040-10 (male plug)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMating Female:\u003c\/strong\u003e 7283-7040-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Male plug (with wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Yazaki 090 waterproof series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 18 AWG (0.5 mm²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 5.5 inches (140 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e IP68\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e PA66 glass-filled nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Copper alloy, tin-plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Up to 10A per pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota rear O2 sensor (downstream):\u003c\/strong\u003e Bank 1 Sensor 2 and Bank 2 Sensor 2 harness connectors on Toyota 2.4L, 3.0L, 3.5L V6 engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC assembly wiring:\u003c\/strong\u003e Compressor clutch and pressure sensor harness on Toyota HVAC systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLexus shared platform:\u003c\/strong\u003e IS250, IS350, ES350 downstream O2 sensor harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRear O2 Sensor – Why It Matters\u003c\/h3\u003e\u003cp\u003eThe downstream (rear) O2 sensor monitors catalytic converter efficiency. A failed connector at this location causes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0136 \/ P0156\u003c\/strong\u003e – O2 Sensor Circuit (Bank 1\/2, Sensor 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0420 \/ P0430\u003c\/strong\u003e – Catalyst System Efficiency Below Threshold – often triggered by a faulty downstream O2 connector, not a failed catalytic converter\u003c\/li\u003e\n\u003cli\u003eFailed emissions test – ECM cannot confirm catalyst efficiency without downstream O2 signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can a bad downstream O2 connector cause a P0420 cat code?\u003c\/strong\u003e\u003cbr\u003eA: Yes. P0420 (Catalyst System Efficiency Below Threshold) is triggered when the downstream O2 signal does not show the expected flat waveform after the catalyst. A corroded 7282-7040-10 connector causes signal dropout, which the ECM interprets as catalyst failure. Always inspect the connector before replacing the catalytic converter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 7282-7040-10 and 7283-7040-10?\u003c\/strong\u003e\u003cbr\u003eA: 7282-7040-10 is the male plug (harness side); 7283-7040-10 is the female socket (sensor side). In the Yazaki 7282\/7283 series, 7282 always denotes the male plug and 7283 always denotes the female socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What crimping tool is needed?\u003c\/strong\u003e\u003cbr\u003eA: Use a ratchet crimper for 0.5mm² (18 AWG) Yazaki 090 terminals – Hozan P-706 or Engineer PA-09.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 4-Pin Male Connector (7282-7040-10) with 18 AWG wire and terminal insert\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"4P \/ Male with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844196352245,"sku":"14:200004889#Male with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000933;462:203053809","price":47.25,"currency_code":"USD","in_stock":true},{"title":"4P \/ Male with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844196385013,"sku":"14:200004889#Male with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000933;462:203053809","price":157.65,"currency_code":"USD","in_stock":true},{"title":"4P \/ Male with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844196417781,"sku":"14:200004889#Male with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000933;462:203053809","price":15.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Sbcef2629334245d3b2ae5de36991375aq.webp?v=1773810063","url":"https:\/\/www.csldmcml.com\/products\/4-pin-7282-7040-10-yazaki-o2-sensor-male-connector-toyota-ac-assembly","provider":"Cable Parts Online","version":"1.0","type":"link"}