{"product_id":"standard-ignition-ns-549-neutral-safety-switch","title":"Standard Ignition NS-549 Neutral Safety Switch","description":"\u003ch2\u003eReliable Neutral Safety Switch for BMW 540i, 740i, and X5\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition NS-549 Neutral Safety Switch is designed to ensure safe and accurate transmission operation for select BMW models. Engineered with durable materials and precise specifications, this switch supports proper vehicle starting and gear engagement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 540i, 740i, and X5 models\u003c\/li\u003e\n\u003cli\u003ePart number NS-549 for easy identification\u003c\/li\u003e\n\u003cli\u003e12-volt electrical system compatibility\u003c\/li\u003e\n\u003cli\u003eFive male bullet terminals with one round male connector\u003c\/li\u003e\n\u003cli\u003eDurable plastic and metal construction with black and silver finish\u003c\/li\u003e\n\u003cli\u003eBolt mount attachment method for secure installation\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 17.5 inches (444.5 mm)\u003c\/li\u003e\n\u003cli\u003eOverall length of 4.25 inches (107.95 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition NS-549 neutral safety switch features a robust design combining metal and plastic materials to withstand automotive operating conditions. It includes five male bullet terminals and a single round male connector, facilitating reliable electrical connections within the vehicle's starting system. The switch mounts securely using bolts, ensuring stable positioning in the transmission assembly. Its wiring harness extends 17.5 inches, providing sufficient length for installation in BMW 540i, 740i, and X5 models. The black and silver finish offers corrosion resistance and complements the vehicle's engine bay components.\u003c\/p\u003e\u003ch2\u003eFunction and Application\u003c\/h2\u003e\u003cp\u003eThis neutral safety switch is essential for preventing the engine from starting unless the transmission is in neutral or park, enhancing vehicle safety and preventing accidental movement. It addresses several common issues, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine fails to start due to faulty neutral safety switch\u003c\/li\u003e\n\u003cli\u003eIntermittent starting problems related to transmission position sensing\u003c\/li\u003e\n\u003cli\u003eInability to shift out of park or neutral\u003c\/li\u003e\n\u003cli\u003eElectrical connection failures in the starting circuit\u003c\/li\u003e\n\u003cli\u003eTransmission safety interlock malfunctions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Standard Ignition NS-549 neutral safety switch requires basic mechanical skills and tools. Ensure the vehicle is turned off and the battery disconnected before beginning. The bolt mount design allows for straightforward attachment to the transmission housing. Verify the wiring harness length and connector orientation match the vehicle's specifications. Since mounting hardware and gaskets are not included, reuse existing components or source compatible parts as needed. Proper alignment is critical to ensure accurate transmission position sensing.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStandard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The NS-549 neutral safety switch undergoes rigorous quality control to ensure consistent operation in BMW 540i, 740i, and X5 vehicles. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":44693670822069,"sku":"FBHK-NS-549","price":537.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_NS549_Fro.jpg?v=1775081407","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-ns-549-neutral-safety-switch","provider":"PartCatalog","version":"1.0","type":"link"}