RASK PERFORMANCE CheckM8™ vented transmission top cover fixes the excessive crankcase breather pressure issue on Harley-Davidson M8 engines.

• Reduce or even eliminate the oil coming from the head breathers on your M8.
• Machined from Billet Aluminum with a Boyesen one-way reed valve to vent the excessive crankcase pressure.
• No annoying hose on your dipstick to worry about when checking your oil.
• Proven on the Trask Performance King of the Baggers Race Bike.
• Free up horsepower on M8 engines by allowing to rev easier.

Fits all M8 engines including 2017+ FL & 2018+ Softails

PATENT PENDING

(1) Black aluminum transmission cover

(1) Air filter

(1) 25-1/4" Black hose 

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