Jagg Oil Coolers Automatic By-Pass Valve The Jagg Automatic Bypass Valve ensures your engine reaches and maintains optimum power by managing oil flow efficiently. Crafted from durable anodized billet aluminum, it quickly warms the engine during cold starts and maintains stable temperatures for consistent performance. This compact, in-line thermostat is a maintenance-free upgrade that optimizes your engine's power delivery in any weather. Features: Acts as an automatic thermostat, allowing you to by-pass the oil cooling system for cold-weather riding or for faster warm-ups on cool days Works with all oil coolers Durable anodized billet aluminum construction Compact in-line installation Includes all necessary hardware and easy-to-follow installation instructions Note: If oil hoses between the oil cooler and the oil source are too short, the oil cooler bypass valve may not fit in the oil lines Jagg bypass valves require at least 3 of straight hose.