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SINGLE-PIECE GASKET FOR EVOLUTION BALANCER BOX BASE BY JAMES
Category dedicated to single-piece gaskets for the rocker box base on Harley-Davidson Evolution engines. These gaskets seal the joint between the rocker cover and the cylinder head, preventing oil leaks and maintaining lubrication system pressure.
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James GasketsOne-piece rocker box base gasket for Evolution by James
Version: Juntas tapa balancines con cordón de silicio BT84-99 XL86-upThis single-piece gasket for rocker boxes replaces the original two-piece (OEM 16778-84A and 16779-84A). It features a metal…
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James GasketsOne-piece rocker box base gasket for Evolution by James – Set/2 Evo
This single-piece gasket for rocker boxes replaces the original two-piece (OEM 16778-84A and 16779-84A). It features a metal…
About this category
Includes rubber or cork seals designed specifically for the Evolution engine family, found in Sportster models and certain older Twin Cam versions. Essential for cylinder head repairs, oil changes, or valve seal replacement. Compatible with Evolution engines from their introduction until the arrival of the Twin Cam. Manufactured by James, ensuring precise fit and durability. Ideal for classic and modern motorcycles with Evolution cylinder head configuration requiring replacement of the rocker cover perimeter gasket.