Usage Tips:Tire Valve Replacement For agricultural tractors with 5/8 inch rim holes, the TR618A brass valve stem set provides a reliable airliquid standard to wornout parts, ensuring consistent tire pressure and smooth operation in demanding farm conditions Material And Build Made from brass and rubber, these valve stems deliver lasting performance and erosion resistance, suitable for longterm use in various agricultural environments without frequent replacements For Easy Installation Simply remove the old valve and insert this valve onto your tractor wheel rim; the process requires no special tools, saving time and effort during maintenance Compatibility And Versatility This 10piece set is designed to fit most kinds of agricultural tractors, offering broad applicability and coverage for general tire valve replacement needs Use scenarios Routine field maintenance on tractors used for planting, spraying, or harvesting to maintain stable tire pressure Quick field or roadside repairs when a valve leaks or pressure drops, reducing downtime during busy seasons Fleet maintenance on farms with multiple tractor models, providing a common valve replacement solution across different machines