General Motors Power Steering Box Metric fittings 16mm & 18mm o'ring to -6 AN male. Sold individually or in pairs. see below.

P/N     11735        16 & 18 mm             $17.95 pr.
P/N     11720        16 mm                      $8.95 ea.
P/N     11730        18mm                       $8.95 ea.