{"product_id":"rc-nitro-engine-one-way-bearing-hex-nut-12mm-14mm-hsp-1-10-94188","title":"RC Nitro One Way Bearing Hex Nut 12mm\/14mm – HSP 1\/10 94188","description":"\u003ch2\u003eOne Way Bearing Hex Nut for RC Nitro Engine – 12mm \u0026amp; 14mm\u003c\/h2\u003e\n\u003cp\u003eKeep your HSP RC model car running at peak performance with this precision-machined \u003cstrong\u003eOne Way Bearing Hex Nut\u003c\/strong\u003e. Designed specifically for 1\/10 scale nitro-powered RC cars — including the popular HSP 94188 — this replacement part ensures smooth, reliable one-directional engagement between your nitro engine's pull-start and flywheel assembly.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in two sizes to fit a wide range of SH nitro engines, this black metal hex nut bearing is a must-have spare for any serious RC hobbyist.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo Size Options:\u003c\/strong\u003e 12mm outside diameter (fits SH 21, SH 18, SH 16 engines) and 14mm outside diameter (fits SH 28 engine)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal Construction:\u003c\/strong\u003e Precision-machined from metal for lasting strength and consistent performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne-Way Bearing Design:\u003c\/strong\u003e Allows smooth pull-start operation and prevents back-spin during engine startup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Compatible with HSP 1\/10 RC model car (model 94188) and similar nitro platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Install:\u003c\/strong\u003e Drop-in replacement with no modifications required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 x One Way Bearing Hex Nut (R025)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCompatible Engine(s)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12mm OD\u003c\/td\u003e\n\u003ctd\u003eSH 21, SH 18, SH 16 Nitro Engines\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e14mm OD\u003c\/td\u003e\n\u003ctd\u003eSH 28 Nitro Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to screen color calibration differences, the actual product color may vary slightly from the images shown.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/4-pack-deer-whistle-wildlife-alert-devices-vehicle\"\u003e4-Pack Deer Whistle Wildlife Alert Devices for Vehicles\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/34-compartment-double-sided-hardware-storage-box-removable-dividers\"\u003e34-Compartment Double-Sided Hardware Storage Box \u0026amp; Dividers\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What RC models is this one way bearing hex nut compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This one way bearing hex nut is designed for HSP 1\/10 scale nitro RC model cars, specifically model 94188. The 12mm version fits SH 21, SH 18, and SH 16 nitro engines, while the 14mm version is made for the SH 28 nitro engine. Always check your engine model before ordering to ensure the correct size.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the 12mm and 14mm versions?\u003c\/h4\u003e\n\u003cp\u003eA: The numbers refer to the outside diameter of the bearing. The 12mm outside diameter hex nut bearing fits smaller SH nitro engines (SH 16, SH 18, SH 21), while the 14mm version is designed for the larger SH 28 nitro engine. Select the size that matches your specific engine model for a proper fit.\u003c\/p\u003e\n\u003ch4\u003eQ: What material is this one way bearing hex nut made from?\u003c\/h4\u003e\n\u003cp\u003eA: Despite the product listing mentioning plastic in the general specifications, the actual part is constructed from metal, ensuring the durability and precision required for nitro RC engine applications. It is finished in black.\u003c\/p\u003e\n\u003ch4\u003eQ: How many pieces are included in the package?\u003c\/h4\u003e\n\u003cp\u003eA: Each package contains 1 piece — one one way bearing hex nut (R025) in your chosen size (12mm or 14mm).\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What RC models is this one way bearing hex nut compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This one way bearing hex nut is designed for HSP 1\/10 scale nitro RC model cars, specifically model 94188. The 12mm version fits SH 21, SH 18, and SH 16 nitro engines, while the 14mm version is made for the SH 28 nitro engine. Always check your engine model before ordering to ensure the correct size.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the 12mm and 14mm versions?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The numbers refer to the outside diameter of the bearing. The 12mm outside diameter hex nut bearing fits smaller SH nitro engines (SH 16, SH 18, SH 21), while the 14mm version is designed for the larger SH 28 nitro engine. Select the size that matches your specific engine model for a proper fit.\"}}, {\"@type\": \"Question\", \"name\": \"What material is this one way bearing hex nut made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Despite the product listing mentioning plastic in the general specifications, the actual part is constructed from metal, ensuring the durability and precision required for nitro RC engine applications. It is finished in black.\"}}, {\"@type\": \"Question\", \"name\": \"How many pieces are included in the package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each package contains 1 piece — one one way bearing hex nut (R025) in your chosen size (12mm or 14mm).\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Car, Motorcycle \u0026 Bike\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/collections\/car-motorcycle-bike\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"RC Nitro One Way Bearing Hex Nut 12mm\/14mm – HSP 1\/10 94188\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/products\/rc-nitro-engine-one-way-bearing-hex-nut-12mm-14mm-hsp-1-10-94188\"}]}\u003c\/script\u003e","brand":"QXL","offers":[{"title":"12MM","offer_id":46964143456455,"sku":"14:366#12MM","price":16.01,"currency_code":"USD","in_stock":true},{"title":"14MM","offer_id":46964143489223,"sku":"14:29#14MM","price":15.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8314\/9255\/files\/Sdd9ec3e4f8be4c269f88c093736e0b52w.webp?v=1786056709","url":"https:\/\/qxlcustomerservice.com\/products\/rc-nitro-engine-one-way-bearing-hex-nut-12mm-14mm-hsp-1-10-94188","provider":"QXL","version":"1.0","type":"link"}