The STIHL 62907024400 Blade Shaft Spacer is a genuine OEM component designed to maintain precise blade alignment and spacing on compatible STIHL RMA series lawn mowers. This essential part ensures optimal cutting performance and extends the life of your equipment. It is compatible with models including RMA 510, RMA 510 V, RMA 520 V, RMA 520 V R, RMA 520 V T, and RMA 520 V Y. Manufactured to STIHL's rigorous quality standards, this spacer provides reliable fit and function.