ZIPPERS PERFORMANCE BLUEPRINT TWIN CAM PLATE HARLEY 99-17 HARLEY SWINGARM Two large outer pockets and

Two large outer pockets and cooling vents under each arm

Designed for optimum performance with Legend rear suspensions

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This means more throttle response

ZIPPERS PERFORMANCE BLUEPRINT TWIN CAM PLATE HARLEY 99-17 HARLEY SWINGARM Two large outer pockets andZIPPERS PERFORMANCE BLUEPRINT TWIN CAM PLATE HARLEY 99 17 When the time comes to rebuild or to improve the power durability of the venerable Twin Cam engine replacing the O. E. cast aluminum cam plate should be on your menu. The cam support plate in a Twin Cam engine is the manifold system used to distribute all oil flow to critical areas of the engine via oil pressure bypass valve and pressure chamber. Many older O. E. plates may have internal leaks