Twin Power 84-99 Evolution Big Twin Lower Rocker Box Gaskets Replaces H-D 17038-90 1 Piece Pr

Twin Powerâ„¢ lower rocker box gaskets provide reliable sealing between the rocker box and head on Twin Cam and Evolution Big Twin engines, helping reduce top-end oil leaks.

• Direct fit replacements for OEM lower rocker box gaskets on listed Twin Cam and Evo Big Twins
• Help maintain proper sealing at a common leak point
• Includes lower 1 piece.
• Made in USA

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