{"product_id":"2-pin-7122-4129-90-7157-6420-80-7123-4129-90-yazaki-9-5mm-connector","title":"2-Pin 7122-4129-90 \/ 7157-6420-80 \/ 7123-4129-90 Yazaki 9.5mm Unsealed Connector – High-Current Harness","description":"\u003ch2\u003e2-Pin 7122-4129-90 \/ 7157-6420-80 \/ 7123-4129-90 Yazaki 9.5mm Unsealed Connector – High-Current Harness\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for Yazaki OEM part numbers \u003cstrong\u003e7122-4129-90\u003c\/strong\u003e (male plug), \u003cstrong\u003e7157-6420-80\u003c\/strong\u003e (connector body), and \u003cstrong\u003e7123-4129-90\u003c\/strong\u003e (female socket), a 2-pin unsealed 9.5mm pitch connector set from the Yazaki high-current series. At 9.5mm pitch, this is one of the largest standard automotive connector formats – rated at up to \u003cstrong\u003e40A per pin\u003c\/strong\u003e for main power feed and battery circuit applications.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers:\u003c\/strong\u003e 7122-4129-90 (male) \/ 7157-6420-80 (body) \/ 7123-4129-90 (female)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Pitch:\u003c\/strong\u003e 9.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Type:\u003c\/strong\u003e Unsealed (for dry, protected environments)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 12 AWG (4.0 mm²) recommended for full 40A capacity\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\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 40A per pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 12V \/ 24V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 1 set (male + body + female with wire)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eYazaki 9.5mm Series – Part Number Logic\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7122-XXXX-XX:\u003c\/strong\u003e Male plug housing (pin contacts)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7157-XXXX-XX:\u003c\/strong\u003e Connector body \/ housing shell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7123-XXXX-XX:\u003c\/strong\u003e Female socket housing (socket contacts)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLast two digits (-90):\u003c\/strong\u003e Wire seal color \/ variant code\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBattery positive cable junction connector\u003c\/li\u003e\n\u003cli\u003eAlternator output harness connector\u003c\/li\u003e\n\u003cli\u003eMain relay output – high-current power distribution\u003c\/li\u003e\n\u003cli\u003eStarter motor main power feed\u003c\/li\u003e\n\u003cli\u003eMotorcycle main power harness junction\u003c\/li\u003e\n\u003cli\u003eHigh-draw accessory circuits (winch, compressor, inverter)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHigh-Current Connector Selection Guide\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.3mm Faston \/ Metri-Pack 630:\u003c\/strong\u003e 20A\/pin – relays, fans\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.8mm Yazaki:\u003c\/strong\u003e 30A\/pin – main power, alternator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9.5mm Yazaki (this):\u003c\/strong\u003e 40A\/pin – battery, starter, main power feeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What wire gauge should I use for a 40A circuit?\u003c\/strong\u003e\u003cbr\u003eA: Use a minimum of 8 AWG (10.0 mm²) for 40A continuous load. For 30A circuits, 10 AWG (6.0 mm²) is acceptable. Undersized wire causes voltage drop and connector overheating at high current loads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What crimping tool is needed for 9.5mm Yazaki terminals?\u003c\/strong\u003e\u003cbr\u003eA: Use a heavy-duty ratchet crimper rated for 8–12 AWG (4.0–10.0 mm²) – such as Engineer PA-20 or equivalent. Standard automotive crimpers are too small for 9.5mm terminals.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 2-Pin Male Connector (7122-4129-90) with wire\u003cbr\u003e1 × Connector Body (7157-6420-80)\u003cbr\u003e1 × 2-Pin Female Connector (7123-4129-90) with wire and terminal inserts\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"2P \/ Male with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844206706933,"sku":"14:200004890#Male with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000932;462:203053809","price":55.2,"currency_code":"USD","in_stock":true},{"title":"2P \/ Male with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844206739701,"sku":"14:200004890#Male with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000932;462:203053809","price":183.9,"currency_code":"USD","in_stock":true},{"title":"2P \/ Male with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844206969077,"sku":"14:200004890#Male with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000932;462:203053809","price":18.45,"currency_code":"USD","in_stock":true},{"title":"2P \/ Female with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844206805237,"sku":"14:200004891#Female with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000932;462:203053809","price":50.4,"currency_code":"USD","in_stock":true},{"title":"2P \/ Female with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844206838005,"sku":"14:200004891#Female with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000932;462:203053809","price":168.15,"currency_code":"USD","in_stock":true},{"title":"2P \/ Female with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844206772469,"sku":"14:200004891#Female with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000932;462:203053809","price":16.8,"currency_code":"USD","in_stock":true},{"title":"2P \/ MaleFemale with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844206903541,"sku":"14:200004889#MaleFemale with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000932;462:203053809","price":105.6,"currency_code":"USD","in_stock":true},{"title":"2P \/ MaleFemale with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844206936309,"sku":"14:200004889#MaleFemale with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000932;462:203053809","price":352.2,"currency_code":"USD","in_stock":true},{"title":"2P \/ MaleFemale with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844206870773,"sku":"14:200004889#MaleFemale with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000932;462:203053809","price":35.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S63a2af10e57e4f9b9892708133b3dbe8W.webp?v=1773810222","url":"https:\/\/www.csldmcml.com\/products\/2-pin-7122-4129-90-7157-6420-80-7123-4129-90-yazaki-9-5mm-connector","provider":"Cable Parts Online","version":"1.0","type":"link"}