740092 Jagg Automatic by Pass Valve

The Jagg #4050 automatic bypass valve functions as an in-line thermostat for Harley-Davidson oil cooling systems. Constructed from durable anodized billet aluminum, this valve automatically regulates oil flow, bypassing the cooler during cold starts and cool weather to allow the engine to reach operating temperature faster. Once the oil warms up, the valve opens to route fluid through the cooler. This compact unit requires at least three inches of straight hose for installation and comes with all necessary hardware. By automating the cooling process, Jagg ensures optimal oil viscosity and engine protection across varying climates, making it a vital upgrade for riders seeking consistent performance.