Description
Feuling Vented Dipstick for Harley-Davidson® Twin Cam & Milwaukee-Eight® Touring Models
Oil blow-by occurs when crankcase pressure forces oil out through the air intake. This creates a messy engine bay and, in severe cases, can push oil toward the rider. Excess pressure in the oil tank or pan also makes it harder for the oil pump to return oil properly, contributing to wet sumping.
The Feuling Vented Dipstick actively relieves this excess pressure. By allowing trapped crankcase pressure to escape, it helps prevent oil migration into the engine and improves overall oil control. Feuling originally developed this dipstick for Milwaukee-Eight® engines to address common wet-sumping issues.
This vented dipstick uses a proven Twin Cam-style rubber umbrella valve. The one-way design releases pressure efficiently while preventing backflow. Pressure below the dipstick exits through a relief port and vents through the umbrella valve and breather system.
Key Features
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Screws directly into the factory oil fill spout as a stock-style replacement on Milwaukee-Eight® Touring models
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Reduces oil blow-by caused by excessive crankcase pressure
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Helps engines with high leak-down from rings or cylinders, common in large-displacement big-bore builds
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Testing shows reduced wet-sumping oil levels
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Vents crankcase pressure through an integrated breather system with filter element and umbrella valve
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Offers two venting configuration options during installation
