{"product_id":"kpmi-valve-seat-exhaust-1-378-x-1-024-x-0-434-191-57100","title":"KPMI Valve Seat - Exhaust 1.378\" X 1.024 X 0.434\" — Harley-Davidson (2017-2024)","description":"\u003cp\u003eKPMI Kibblewhite exhaust valve seat in 1.378\" x 1.024\" x 0.434\" for high-performance and vintage engines. Built from proprietary material that resists microwelding and seat recession while maintaining thermal stability across leaded, unleaded, methanol, and ethanol fuel blends.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eKibblewhite proprietary seat material\u003c\/li\u003e\n  \u003cli\u003eResists microwelding and valve seat recession\u003c\/li\u003e\n  \u003cli\u003eExcellent thermal characteristics\u003c\/li\u003e\n  \u003cli\u003eCompatible with leaded, unleaded, methanol, and ethanol fuels\u003c\/li\u003e\n  \u003cli\u003eGenerous radius leading edge for easier installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KPMI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 10-HC350\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 1.378 in x 1.024 in x 0.434 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 2 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 2 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.25 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat fuels is this valve seat compatible with?\u003c\/h3\u003e\n\u003cp\u003eWorks with leaded, unleaded, methanol, and ethanol fuel blends without degradation.\u003c\/p\u003e\n\u003ch3\u003eDoes this prevent valve seat recession?\u003c\/h3\u003e\n\u003cp\u003eThe proprietary material resists microwelding that causes recession and seat damage over time.\u003c\/p\u003e\n\u003ch3\u003eIs the leading edge designed for easy installation?\u003c\/h3\u003e\n\u003cp\u003eYes — the generous radius on the leading edge helps guide the seat into the bore during installation.\u003c\/p\u003e\n\u003ch3\u003eWhat engines does this fit?\u003c\/h3\u003e\n\u003cp\u003eVerify the bore size (1.378\" x 1.024\" x 0.434\") against your engine's exhaust valve specification before ordering.\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":53036089147503,"sku":"191-57100","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_00ea4b8a-4aee-4abd-9f53-a38cd787069a.png?v=1779565432","url":"https:\/\/vtwinbikers.com\/products\/kpmi-valve-seat-exhaust-1-378-x-1-024-x-0-434-191-57100","provider":"Vtwinbikers","version":"1.0","type":"link"}