{"product_id":"4-pin-1300-3849-unsealed-starter-brake-lamp-motor-connector","title":"4-Pin 1300-3849 Unsealed Connector – Starter, Brake Lamp \u0026 Motor Harness Socket","description":"\u003ch2\u003e4-Pin 1300-3849 Unsealed Connector – Starter, Brake Lamp \u0026amp; Motor Harness Socket\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for part number \u003cstrong\u003e1300-3849\u003c\/strong\u003e, a 4-pin unsealed plastic housing connector used for starter motor control circuits, brake lamp harness connections, and automotive motor wiring. The 1300-3849 is a medium-current connector designed for protected, dry locations within the vehicle electrical system.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1300-3849\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 socket (with wire)\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 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\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\u003eVoltage Rating:\u003c\/strong\u003e 12V \/ 24V DC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter motor control circuit:\u003c\/strong\u003e Ignition switch to starter relay harness connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake lamp harness:\u003c\/strong\u003e Stop lamp switch and brake light circuit connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive motor wiring:\u003c\/strong\u003e Window regulator, wiper motor, and blower motor harness connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay socket wiring:\u003c\/strong\u003e 4-pin relay control harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBrake Lamp Connector Failure – Diagnosis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake lights not working:\u003c\/strong\u003e Check fuse first, then measure voltage at connector Pin 1 with brake pedal depressed – should read 12V. No voltage indicates a switch or wiring fault upstream.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne brake light inoperative:\u003c\/strong\u003e Typically a bulb failure, not a connector fault. If all brake lights are affected, inspect the stop lamp switch connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCruise control not cancelling on braking:\u003c\/strong\u003e The brake lamp switch signal is also used by the cruise control module – a corroded connector can prevent the cruise control from receiving the brake signal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can a bad brake lamp connector affect cruise control?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The brake lamp switch output is used by the ECM and cruise control module to detect braking. A corroded or open-circuit connector at the brake lamp switch causes the cruise control to not disengage when the brake pedal is pressed – a safety-critical fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What crimping tool is needed?\u003c\/strong\u003e\u003cbr\u003eA: Use a ratchet crimper rated for 18 AWG (0.5 mm²) – Engineer PA-09 or equivalent precision ratchet crimper.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this connector suitable for 24V truck applications?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The housing is rated for 12V and 24V DC systems. Verify the terminal current rating matches the circuit load before use in 24V applications.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 4-Pin Female Socket Connector (1300-3849) with 18 AWG wire and terminal insert\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844194517237,"sku":"14:200004889#Female with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000933;462:203053809","price":156.6,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844194550005,"sku":"14:200004889#Female with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000933;462:203053809","price":46.95,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844194582773,"sku":"14:200004889#Female with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000933;462:203053809","price":15.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S1fab6a5f326d429e83710bfc3c609abbK.webp?v=1773810054","url":"https:\/\/www.csldmcml.com\/products\/4-pin-1300-3849-unsealed-starter-brake-lamp-motor-connector","provider":"Cable Parts Online","version":"1.0","type":"link"}