04-16 XL models use metric 10mm x 1.25 and 12mm x 1.50 banjo bolts, washers and fittings. All Big Twin except 08-16 Dressers and pre-04 XL models use standard 3/8" and 7/16" banjo bolts, washers and fittings. Fittings and washers listed as 3/8"/10mm can be used in either application.