Triumph Pre-Unit ALUMINUM BILLET Valve Cover Cap Set 70-1564 BSA Engine These are direct replacements for

These are direct replacements for BMW R51 / R67 Pre 54

with the most fabulous model every put before the camera with a motorcycle

as Ducati would have made it if they'd been paying attention

Norton's part numbers are 06-2592 and 06-4643

Should fit the 88SA Lucas switch fitted to most British bikes until 1965 or so

Triumph Pre-Unit ALUMINUM BILLET Valve Cover Cap Set 70-1564 BSA Engine These are direct replacements forTriumph's part number for these valve cover nuts is 70 1564 or E1564. They should fit all pre unit models of 500 or 650 twin, to my knowledge. CEI thread, perfectly polished, ALUMINUM BILLET showtime. This listing is for a complete set of four nuts covers.