Genuine Beta OEM part ensures factory specifications and reliability
Precision manufacturing with exact tolerances for perfect fit
Compatible with Beta's racing and enduro models for seamless installation
Helps maintain engine performance and extends engine life
Ideal for rebuilding, replacing, or overhauling engine components
Summarized by Shop
Fitted from the factory, the BETA PISTON RING SET D.40,5 (OEM 33.00990.000) is Beta’s original Engine Case component for the ARK 50 (2007–2013). It keeps your Beta performing exactly as the factory intended. Replace it as part of normal maintenance or after wear. Original parts install without modification and keep your Beta to specificati
