John DeereO-Ring – Durometer 70 – Nominal Section (IN): 0.1220Part No: 4203187

The John Deere 4203187 O-Ring is built to provide reliable, leak-resistant sealing in hydraulic and fluid systems. Featuring a 0.1220-inch nominal section and a 70 durometer rating, it delivers the right balance of flexibility and resilience—ideal for maintaining system pressure and preventing fluid loss. Its round cross-section ensures even compression and secure seating within grooves, making it suitable for both static and dynamic sealing applications. Constructed from durable, fluid-resistant materials, the 4203187 performs well under exposure to hydraulic oils, varying temperatures, and mechanical stress. This O-ring is commonly used in pumps, valves, fittings, and other equipment components across agricultural, construction, and industrial machinery. Whether used for maintenance or new installation, it helps extend equipment life and reduce unplanned downtime. Depend on Doggett John Deere for high-quality sealing solutions that enhance system performance and reliability in demanding work environments.