{"product_id":"k-n-air-oil-separator-catch-can-for-2014-2018-silverado-2015-2020-tahoe-81-0805-vehicle-specific-tool-free-drain","title":"K\u0026N Air Oil Separator Catch Can for 2014–2018 Silverado \/ 2015–2020 Tahoe (81-0805) — Vehicle-Specific, Tool-Free Drain","description":"\u003cp\u003e\u003cstrong\u003eThe K\u0026amp;N Air Oil Separator 81-0805 is a vehicle-specific catch can that captures crankcase oil and contaminants before they reach the intake, protecting engine components and helping preserve performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis bolt-in air oil separator is engineered to fit specified Chevrolet, GMC and Cadillac V8 trucks and SUVs from 2014–2020, replacing the factory crankcase vent line with a high-capacity reservoir and OEM-style connections. Installation typically takes about 30 minutes with basic hand tools, and the unit is designed to mount in a convenient engine bay location while allowing tool-free reservoir checks and draining. The separator helps reduce oil buildup in the intake tract and intake manifold by collecting blow-by oil and moisture in a dedicated canister.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this K\u0026amp;N catch can help my engine and intake?\u003c\/h3\u003e\n\u003cp\u003eThe separator intercepts oil-laden crankcase vapors before they enter the intake, reducing deposit buildup on valves and in the manifold that can degrade performance over time. By collecting liquid oil and heavier particulates in a removable reservoir, it keeps the intake tract cleaner and helps maintain throttle and sensor responsiveness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptures oil and condensate from crankcase blow-by\u003c\/li\u003e\n  \u003cli\u003ePrevents oiling of intake runners and throttle bodies\u003c\/li\u003e\n  \u003cli\u003eHelps reduce carbon and deposit formation on intake valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill installation fit my truck or SUV and how long does it take?\u003c\/h3\u003e\n\u003cp\u003eEach K\u0026amp;N 81-0805 is built for a specific list of models and model years, so fitment is vehicle-specific for select Silverado, Sierra, Tahoe, Suburban, Yukon and Escalade applications. Installation uses factory-style hose connectors and basic hardware so most installations finish in roughly half an hour with common hand tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUses OEM-style snap-on hose fittings for a secure connection\u003c\/li\u003e\n  \u003cli\u003eMounts to a convenient engine-bay location—no custom fabrication\u003c\/li\u003e\n  \u003cli\u003eTool-free reservoir inspection and drainage for easy maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and warranty back this K\u0026amp;N unit?\u003c\/h3\u003e\n\u003cp\u003eThe separator is constructed from durable materials with premium connectors and hoses intended for long service life under normal operating conditions. K\u0026amp;N backs the part with a No-Hassle Lifetime Limited Warranty, offering support for defects in materials and workmanship per warranty terms.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-capacity internal reservoir engineered for extended service intervals\u003c\/li\u003e\n  \u003cli\u003ePremium hoses and OEM-style fittings for reliable sealing and durability\u003c\/li\u003e\n  \u003cli\u003eLifetime limited warranty provided by K\u0026amp;N for qualified issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this product street-legal everywhere?\u003c\/h3\u003e\n\u003cp\u003eCheck local regulations before purchasing: this K\u0026amp;N Air Oil Separator is not legal for sale or use in California on pollution-controlled motor vehicles. States or regions with similar emissions rules may also restrict use, so verify compliance for your area and vehicle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot legal for sale or use in California for pollution-controlled vehicles\u003c\/li\u003e\n  \u003cli\u003eVerify local emissions rules or dealer guidance before installation\u003c\/li\u003e\n  \u003cli\u003eIntended for model-specific applications—confirm exact fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The K\u0026amp;N 81-0805 Air Oil Separator is aimed at owners of compatible 2014–2020 Chevrolet, GMC and Cadillac trucks and SUVs who want to reduce oil contamination of their intake system, protect components from blow-by deposits, and simplify routine engine-bay maintenance. It suits daily drivers, tow rigs and lightly modified vehicles that value OEM-style fitment, quick installation and a high-capacity catch can solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the K\u0026amp;N 81-0805 fit my 2016 Silverado 1500?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 81-0805 is compatible with 2014–2018 Silverado 1500 and 2016–2018 Silverado 1500 Hybrid models; confirm exact year and engine when ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I empty the catch can?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check the reservoir periodically; frequency depends on driving style, but many owners inspect monthly and drain when noticeable oil accumulates.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":48082815746206,"sku":"B0CKWDMT13","price":211.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kn-air-oil-separator-front-view-81-0805.jpg?v=1785815274","url":"https:\/\/northtrailauto.ca\/products\/k-n-air-oil-separator-catch-can-for-2014-2018-silverado-2015-2020-tahoe-81-0805-vehicle-specific-tool-free-drain","provider":"North Trail Auto","version":"1.0","type":"link"}