{"product_id":"k-n-engineering-ru-1780-universal-round-air-filter-for-1981-1982-honda-atc250r","title":"K\u0026N Engineering RU-1780 Universal Round Air Filter for 1981-1982 Honda ATC250R","description":"K\u0026amp;N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K\u0026amp;N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1\/16 of an inch (1.5mm) to fit in-between sizes. K\u0026amp;N universal air filters are washable and reusable. When used as a replacement for the OEM air filter, modifications to the jetting may be required.\nRegardless of the angle or offset diameter of an air intake, there is probably a K\u0026amp;N Universal air filter for your equipment. K\u0026amp;N universal air filters are washable and reusable.\nAssociated products: 25-1770 Air Filter Foam Wrap, RU-0510PK Air Filter Wrap, RU-0510PL Air Filter Wrap, 99-5000 Filter Care Service Kit Aerosol\n\u003cul\u003e\n  \u003cli\u003eNO-HASSLE WARRANTY: 1-Year Limited Warranty\u003c\/li\u003e\n  \u003cli\u003eOne Year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe K\u0026amp;N Engineering RU-1780 Universal Air Filter is designed for applications requiring dependable air filtration and flexible installation. This round, straight-style filter features an angled flange that helps accommodate air intake layouts with offset or angled connections. Its pliable rubber flange absorbs vibration, provides a secure attachment, and can stretch slightly to help fit air intake connections between standard sizes.\u003c\/p\u003e\n\u003cp\u003eThe washable and reusable filter design offers a practical alternative to disposable replacement filters and can support long-term service when properly cleaned and maintained with the appropriate K\u0026amp;N filter care products. When installed as a replacement for the original equipment air filter, carburetor jetting adjustments may be required. The RU-1780 fits the 1981 and 1982 Honda ATC250R and is intended for automotive and powersports applications where the intake configuration matches the filter design.\u003c\/p\u003e\n\u003ch3\u003eKey Product Specifications and Technical Data\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: K\u0026amp;N Engineering\u003c\/li\u003e\n  \u003cli\u003ePart Number: RU-1780\u003c\/li\u003e\n  \u003cli\u003eFilter Type: Universal air filter\u003c\/li\u003e\n  \u003cli\u003eShape: Round\u003c\/li\u003e\n  \u003cli\u003eFlange Style: Angled flange\u003c\/li\u003e\n  \u003cli\u003eFilter Construction: Washable and reusable\u003c\/li\u003e\n  \u003cli\u003eApplication: Automotive and powersports air intake systems\u003c\/li\u003e\n  \u003cli\u003eWarranty: One-year limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOne K\u0026amp;N Engineering RU-1780 universal air filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 1981 Honda ATC250R; 1982 Honda ATC250R. Associated products include the K\u0026amp;N 25-1770 Air Filter Foam Wrap, RU-0510PK Air Filter Wrap, RU-0510PL Air Filter Wrap, and 99-5000 Filter Care Service Kit Aerosol. This product is not CARB approved. California buyers should review applicable emissions regulations before purchase. A California Proposition 65 warning applies.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUniversal Fit: Designed for a wide variety of air intake applications, including powersports, racing, generators, tractors, snowmobiles, and other equipment.\u003c\/li\u003e\n\u003cli\u003eAngled Flange: The angled flange helps accommodate air intake systems with offset or non-straight connection points.\u003c\/li\u003e\n\u003cli\u003eVibration-Resistant Attachment: The molded pliable rubber flange absorbs vibration and supports a secure connection to the intake.\u003c\/li\u003e\n\u003cli\u003eWashable and Reusable: Cleanable filter construction helps provide extended service life compared with disposable air filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n1981 Honda ATC250R Base\u003cbr\u003e\n1982 Honda ATC250R Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":67593385410812,"sku":"RU-1780","price":83.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/850ce8929eafd655d407e6f0237ecc69.jpg?v=1790535161","url":"https:\/\/diycustoms.store\/products\/k-n-engineering-ru-1780-universal-round-air-filter-for-1981-1982-honda-atc250r","provider":"diycustoms.store","version":"1.0","type":"link"}