{"product_id":"4-pin-12129565-waterproof-2-8mm-female-connector-gm-motorcycle","title":"4-Pin 12129565 Waterproof 2.8mm Female Connector – GM Motorcycle Harness","description":"\u003ch2\u003e4-Pin 12129565 Waterproof 2.8mm Female Connector – GM Metri-Pack 280 Series\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for GM OEM part number \u003cstrong\u003e12129565\u003c\/strong\u003e, a 4-pin waterproof 2.8mm pitch connector from the Metri-Pack 280 series. The Metri-Pack 280 is GM's workhorse connector family for medium-current automotive circuits – used across engine management, transmission, and body electrical systems on Chevrolet, Buick, GMC, Cadillac, and Pontiac platforms, as well as motorcycle and powersports harnesses.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 12129565\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 Female (with wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Pitch:\u003c\/strong\u003e 2.8mm (Metri-Pack 280 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 13A per pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +125°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMetri-Pack 280 Series – Why 2.8mm?\u003c\/h3\u003e\u003cp\u003eThe 2.8mm Metri-Pack 280 is GM's standard for medium-current circuits (up to 13A per pin). It is larger than the 1.5mm Micro-Pack (7.5A) but smaller than the 6.3mm Metri-Pack 630 (20A+). Common applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFuel injector connectors (EV1 \/ EV6 style)\u003c\/li\u003e\n\u003cli\u003eOxygen sensor harness connectors\u003c\/li\u003e\n\u003cli\u003eIdle air control (IAC) valve wiring\u003c\/li\u003e\n\u003cli\u003eTransmission range sensor connectors\u003c\/li\u003e\n\u003cli\u003eMotorcycle lighting and ignition circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Fault Codes Linked to 12129565 Connector Failure\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0201–P0208\u003c\/strong\u003e – Injector circuit open (corroded Metri-Pack 280 injector connector)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0131 \/ P0151\u003c\/strong\u003e – O2 sensor circuit low voltage (open circuit at sensor connector)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0505\u003c\/strong\u003e – IAC system malfunction (loose or corroded IAC connector)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Is 12129565 the same as the EV1 fuel injector connector?\u003c\/strong\u003e\u003cbr\u003eA: The EV1 injector connector is a 2-pin Metri-Pack 280 variant. The 12129565 is a 4-pin version of the same 2.8mm series – same terminal size and pitch, different pin count and housing. Do not confuse the two.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What crimping tool is needed for Metri-Pack 280 terminals?\u003c\/strong\u003e\u003cbr\u003eA: GM recommends the Kent-Moore J-38125-6 or Delphi 12085271 ratchet crimper for 2.8mm Metri-Pack terminals. The Molex 63811-9600 is also widely used. Avoid non-ratchet crimpers – inconsistent crimp height causes intermittent contact resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I remove terminals from the 12129565 housing?\u003c\/strong\u003e\u003cbr\u003eA: Use a Metri-Pack terminal removal tool (GM J-35616-B or equivalent flat-blade pick). Insert alongside the terminal, depress the locking lance, and pull the wire from the rear. Never pull the wire without releasing the lock.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can this connector be used on motorcycles?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 2.8mm Metri-Pack 280 series is used on many motorcycle and powersports harnesses, particularly for lighting, ignition, and sensor circuits requiring up to 13A per pin.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 4-Pin Female Connector (12129565) with 18 AWG wire and terminal insert\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844186128629,"sku":"14:200004889#Female with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000933;462:203053809","price":14.7,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844186161397,"sku":"14:200004889#Female with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000933;462:203053809","price":147.6,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844186194165,"sku":"14:200004889#Female with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000933;462:203053809","price":44.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Sdc0823fb8a934f1186524fa9c845bf4bx.webp?v=1773810031","url":"https:\/\/www.csldmcml.com\/products\/4-pin-12129565-waterproof-2-8mm-female-connector-gm-motorcycle","provider":"Cable Parts Online","version":"1.0","type":"link"}