Evo Sportster rocker cover set (1 cyl.). Black - 91-03 XL; 86-90 XL crankvented models when umbrella valve is nut used (NU)) 978358 as is stock with Evolution

as is stock with Evolution motors

A PTFE inner tubing with a protective stainless steel braid cover with preinstalled fitting for the specific model and model year

Filter is reusable and washable

100dB (+- 5dB)

With a 5-position adjustable puller head

Evo Sportster rocker cover set (1 cyl.). Black - 91-03 XL; 86-90 XL crankvented models when umbrella valve is nut used (NU)) 978358 as is stock with EvolutionBlack finish. OEM style rocker covers. Complete set for one cylinder head. Includes gaskets. Hardware is not included. Note: Rocker cover sets are for for late head vented models. Will fit early 86 90 crankcase vented Sportster models when the umbrella valve is not used.