Mid-USA - Rocker Arm Cover Assembly for All Evolution Models

Weight: 11.45

• Die cast aluminum construction to keep strength high and cost low.
• CNC machined for an excellent fit.
• Six bolt top cover design for an improved sealing quality.
• One piece rocker arm supports for easy installation.
• Two piece cover designed to minimize the possibility of oil leaks.
• Extended height vent towers to help eliminate the oil mist carry over problem normally associated with the head type venting system.
• Larger than OE vent valves are incorporated into the rocker cover seal.
• Silicon beaded lower gaskets.
• Includes all necessary mounting hardware.
• These rocker cover assemblies were developed to provide a high tech look while reducing the high cost of a similar product machined from billet aluminum.
• They can be used on all years and models of the Evolution engine, regardless of whether the engine vents through the crankcase or the cylinder heads.
• The one way breather valve has been upgraded from the OE umbrella type to a much more efficient flapper type, and is also located higher in the cover.
• Installation of covers on OE height and most comparably sized engines can be performed without removing the engine from the frame.
• Sold as an assembly for front and rear heads.
• Chrome Plated Rocker Cover Set.
• Fits Big Twin Evolution 1984/1999 & Sportster 1986/Later.

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