Replacing part numbers: R34765, which is a direct replacement for the old or broken one. Compatible with John Deere agricultural and engineering tractor models 3020, 4000, 4020, 4230, 4520, 5020, 6030, and 7520, ensuring fit and reliable performance. Fuel line to injector dust boot with a length of 50mm, large hole diameter of 11mm, and small hole diameter of 5mm. Made from durable rubber material, these dust boots provide excellent protection for the fuel lines, preventing dirt and debris from entering the injector system, ensuring smooth operation and engine longevity. These dust boots help protect the fuel lines and injectors from dirt, dust, and moisture., Manufacturer: YINETTECH