Freight Car

Air Brake Parts & Complete Overhaul Kits

As one of only a few AAR M-1003 certified rubber manufacturers in the US, Longwood Elastomers has supplied aftermarket rubber components used in WABCO's AB valve series (AB, ABD, ABDW) for nearly three decades. We supply individual components as well as complete overhaul kits.

• Packing Cups
• Diaphragms
• Check Valves
• Gaskets
• O-rings
• Strainers
• Filters
• Other Various Seals
• Complete Overhaul Kits

Custom Manufactured Components

In addition to our standard line of air brake parts, Longwood also custom manufactures various elastomeric components for OEM equipment. Our manufacturing processes, technical capabilities and industry experience make Longwood an excellent partner for rail and transit applications. Contact us today to discuss your specific needs.