{"product_id":"icp-hot-surface-igniter-for-x9mpv075f12b2-silicon-nitride-hsi-kit-ships-today","title":"ICP Hot Surface Igniter for X9MPV075F12B2 — Silicon Nitride HSI Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the OEM hot surface igniter (HSI) for the ICP \/ Heil \/ Tempstar X9MPV075F12B2 two-stage variable-speed gas furnace. The igniter (OEM #1172533) is a silicon nitride element that heats to roughly 2,500°F to ignite the burner gas on each call for heat. It works in concert with the flame sensor (#1172543) and the two-stage gas valve (#1172542) to complete a safe ignition sequence. When the igniter cracks, carbonizes, or fails open, the furnace will not light — the most common no-heat symptom on this model. Replacing the HSI is the standard first repair when the burners do not ignite but the inducer and blower still run.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Part Number\u003c\/td\u003e\n\u003ctd\u003e1172533 (Igniter HSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1172543 (Flame Sensor), 1172542 (2-Stage Gas Valve, VR8205Q)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter — Silicon Nitride\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar \/ Comfortmaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct OEM replacement for the ICP\/Heil\/Tempstar X9MPV075F12B2 75,000 BTU two-stage variable-speed gas furnace. The same igniter platform is shared across many 9-series ICP-built furnaces sold under the Heil, Tempstar, Comfortmaker, and Arcoaire labels. Always verify your existing OEM part number (1172533) before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the furnace switch and breaker; close the gas shutoff and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the lower burner-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter mounting bracket and wire routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw(s), and lift the old igniter out carefully. Never touch the ceramic element with bare fingers — skin oils shorten its life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new igniter on the bracket, secure the screw, and reconnect the plug per your photo. Confirm the element sits in the burner flame path without touching metal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then run a heat cycle and confirm the igniter glows bright orange and the burners light within a few seconds.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace inducer runs but burners never ignite (no heat).\u003c\/li\u003e\n\u003cli\u003eVisible cracks, blistering, or white\/gray carbon buildup on the ceramic element.\u003c\/li\u003e\n\u003cli\u003eIgniter glows weakly or not at all during a call for heat.\u003c\/li\u003e\n\u003cli\u003eRepeated lockouts after several failed ignition attempts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021459505523,"sku":"X9MPV075F12B2","price":38.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047679869299,"sku":"X9MPV075F12B2-GEN","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-nitride-X9MPV075F12B2.jpg?v=1782893437","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-x9mpv075f12b2-silicon-nitride-hsi-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}