The Midland Haldex RH7871K is a repair kit designed for 1.75″ adjusting cylinders used in heavy-duty air brake systems. The kit contains two piston seals, one gasket, and two dust boots – the sealing components typically required when rebuilding an adjusting cylinder. It is a direct-fit kit for adjusting cylinders RH201183, RH201183X, RH201184, and RH201184X. Buying a complete seal kit means having every critical sealing component on hand before teardown, reducing downtime on the shop floor. Available as a genuine Midland Haldex part from Pro Gear and Transmission. Call us to confirm fit for your specific application.A factory handling fee of $25.00 per unit is added at checkout.FeaturesFits 1.75″ adjusting cylindersCompatible with cylinder part numbers RH201183, RH201183X, RH201184, and RH201184XKit includes 2 piston seals, 1 gasket, and 2 dust bootsCovers the full set of sealing components needed for an adjusting cylinder rebuildGenuine Midland Haldex part number RH7871KTech SpecsRepair Kit for 1.75″ Adjusting CylindersNotes: Kit contains: 2 piston seals, 1 gasket, 2 dust boots.Application: RH201183, RH201183X, RH201184, RH201184X