{"product_id":"5-pin-12186139-b-waterproof-1-5mm-connector-buick-chevrolet","title":"5-Pin 12186139-B Waterproof 1.5mm Connector – Buick Chevrolet Female Harness","description":"\u003ch2\u003e5-Pin 12186139-B Waterproof 1.5mm Connector – Buick \u0026amp; Chevrolet Female Harness\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for GM OEM part number \u003cstrong\u003e12186139-B\u003c\/strong\u003e, a 5-pin waterproof 1.5mm pitch connector used in Buick and Chevrolet sensor and actuator harness applications. The 1.5mm Metri-Pack-style series is one of GM's most widely deployed connector families, covering engine management, transmission, and body control circuits across multiple platforms.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 12186139-B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 5\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 1.5mm\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\u003eVoltage Rating:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Up to 7.5A per pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Vehicles \u0026amp; Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuick:\u003c\/strong\u003e LaCrosse, Enclave, Regal, Verano – engine and transmission sensor harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChevrolet:\u003c\/strong\u003e Malibu, Equinox, Cruze, Silverado – ECM sensor and actuator circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGM 1.5mm series applications:\u003c\/strong\u003e MAF sensor, IAT sensor, fuel injector harness, transmission solenoid wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference:\u003c\/strong\u003e Verify OEM part number 12186139-B before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGM 1.5mm Connector Series – Technical Overview\u003c\/h3\u003e\u003cp\u003eThe GM 1.5mm series (also known as Micro-Pack 100) is designed for high-density signal and low-power circuits in engine management systems. Key characteristics:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.5A per pin:\u003c\/strong\u003e Suitable for sensor signals and low-current actuators – not for high-current loads (use 2.8mm or Metri-Pack 280 for loads above 15A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed design:\u003c\/strong\u003e Individual wire seals on each cavity maintain IP68 rating even with mixed wire gauges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary lock:\u003c\/strong\u003e The 12186139-B housing includes a secondary terminal position assurance (TPA) lock – ensure it is fully engaged after terminal insertion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor coding:\u003c\/strong\u003e GM uses housing color to indicate circuit type – verify color matches original connector before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Failure Symptoms\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eP0100–P0104 (MAF sensor circuit faults) – often caused by connector corrosion, not sensor failure\u003c\/li\u003e\n\u003cli\u003eP0110–P0114 (IAT sensor circuit faults)\u003c\/li\u003e\n\u003cli\u003eRough idle or hesitation under load – intermittent sensor signal dropout\u003c\/li\u003e\n\u003cli\u003eTransmission shift quality issues – solenoid connector corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 12186139-B and 12186139?\u003c\/strong\u003e\u003cbr\u003eA: The \"-B\" suffix indicates a revised housing design with updated terminal retention geometry. The two versions are functionally compatible but the \"-B\" version has improved terminal lock reliability. Use the \"-B\" version as a direct upgrade replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What crimping tool is needed for 1.5mm GM terminals?\u003c\/strong\u003e\u003cbr\u003eA: GM recommends the Kent-Moore J-38125-8 or equivalent ratchet crimper for 1.5mm Micro-Pack terminals. The Delphi 12085271 hand tool is also widely used. Avoid non-ratchet crimpers as they produce inconsistent crimp heights on 1.5mm terminals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this connector for 5-pin MAF sensor replacement on Chevrolet Equinox?\u003c\/strong\u003e\u003cbr\u003eA: Yes, provided the OEM part number 12186139-B matches your vehicle's harness connector. The Equinox 2.4L and 3.0L engines use 1.5mm series connectors for MAF and IAT sensors. Verify pin count and housing shape before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I remove terminals from the 12186139-B housing?\u003c\/strong\u003e\u003cbr\u003eA: Use a 1.5mm terminal removal pick (GM tool J-35616-A or equivalent). Insert the pick into the terminal cavity alongside the terminal, depress the locking tab, and pull the wire from the rear. Do not pull the wire without releasing the lock – this will damage the terminal retention feature.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 5-Pin Female Connector (12186139-B) with 18 AWG wire and terminal inserts\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"5P \/ Female with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844185604341,"sku":"14:200004889#Female with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200952640;462:203053809","price":14.55,"currency_code":"USD","in_stock":true},{"title":"5P \/ Female with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844185637109,"sku":"14:200004889#Female with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200952640;462:203053809","price":43.8,"currency_code":"USD","in_stock":true},{"title":"5P \/ Female with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844185669877,"sku":"14:200004889#Female with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200952640;462:203053809","price":145.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Sa3089195cbe64ec9b5726e856a4cfd6fw.webp?v=1773810028","url":"https:\/\/www.csldmcml.com\/products\/5-pin-12186139-b-waterproof-1-5mm-connector-buick-chevrolet","provider":"Cable Parts Online","version":"1.0","type":"link"}