{"product_id":"mcs510784","title":"MCS PCV Crankcase Breather Cannister – Universal","description":"\u003ch2\u003eMCS PCV Crankcase Breather Cannister – Universal\u003c\/h2\u003e\n\u003cp\u003eChrome. Positive Crankcase Ventilation; a universal chrome plated steel crankvent system for use on all H-D models. Fits regular 3\/8\" oil lines. The engine can breath out; but not breath in; thus maintaining vacuum in the crankcase at all RPM for improved performance. Note: Primarily designed for bottom vent and custom head vent applications. Can not be used in regular head vent applications due to space required. Tech tip: How active crank vents work. On the down stroke of the pistons the air in the crankcase is compressed. H-D engines; either bottom or head vent models; are not able to vent the required volume. With large displacement engines this problem increases even more. All crank vents let the pressure escape; but also partially allow it to return when the pistons go up. In an active crank vent (crankcase breather) a valve closes; preventing gasses to re-enter the crankcase; creating a stronger partial vacuum inside the crankcase. This can increase horsepower; depending on the engine. Less problems will occur with blown or weeping gaskets and piston compression rings will seal better.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eUniversal\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e MCS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; CRANKCASE BREATHERS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 510784\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MCS","offers":[{"title":"Default Title","offer_id":57379507143043,"sku":"MCS510784","price":44.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/510784k.jpg?v=1775671779","url":"https:\/\/hogparts.com\/products\/mcs510784","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}