16mm Jackshaft with Stepdown. Overall Length, just under 9-1/2". 4" Long, 5mm Keyway. Made in the USA. Fits American Sportworks 3170, 3171 and 5210 Go Karts. American Sportworks 14691 / American Landmaster 14691. Uses Bearing 14693 Marked 6004Z or 6004-2RS. Premium Jackshaft for American Sportworks Go Karts and others.

  
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