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About this part

Polished sand cast aluminum finish. Reproduction of the OEM front & rear rocker arm housings, perfect for restorations. Replaces front OEM 90-36 (36-47 Knuckle) Replaces rear OEM 91-36 (36-40 Knuckles) and 91-41 (41-47 Knuckles) housings.

Fits: > 36-47 Knucklehead; S&S KN-series engines (

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Knucklehead Rocker S&S arm housing polished

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