Description

Seat Adjustment Springs for Piper AircraftReplacement springs just got more affordable!Direct replacement – no conversion kit requiredOne required per bucket seatAvoid downtime and expense of repeated overhaulsGas Spring StyleReplaces Piper P/N 587-404 or 89178-010*Originals were manufactured by Stabilus Bloc-O-Lift or Gas Springs Corp Easy LiftM10x1 metric thread (~0.39 inch diameter)Adapter P/N MC37902-06 also available (threads on end of the Gas Spring Style MC587-404)*Some Piper parts catalogs do not list part number 587-404 separately but list an assembly part number of 89178-010 instead. McFarlane P/N MC587-404 replaces the spring component of this assembly and adapter P/N MC37902-06 replaces the block. Coil Spring/Hydraulic StyleMcFarlane replaces the old coil spring/hydraulic style with a gas springReplaces Piper P/N 76445-000 or 555-692Originals were manufactured by P. L. Porter Hydrolok3/8-24 UNF thread P/N MC555-692Maintenance Tip: Aircraft make, model and serial number are not sufficient to ensure the correct replacement spring as many aircraft may have been originally equipped with either one or retrofitted with a conversion kit. If the spring you are replacing is marked with a brand name (e.g. P. L. Porter or Stabilus) the correct replacement is readily identified. The coil spring/hydraulic style are also identifiable by a 1-1/4′ diameter visible coil spring. The thread may also be measured to verify the correct identification.