Fitted from the factory, the BETA ENGINE HEAD D95_1 (OEM 037.11.017.82.00) is Beta’s original cylinder head for the RR 430 4T, RR 430 4T RACING, RR 430 4T X-PRO, RR 480 4T, RR 480 4T RACING, RR 480 4T X-PRO (2020–2026). It seals the combustion chamber and houses the valvetrain/squish.Inspect and replace if warped, cracked or worn. Original parts install without modification and keep your Beta to specification. OEM part number 037.11.017.82.00 Fits models RR 430 4T, RR 430 4T RACING, RR 430 4T X-PRO, RR 480 4T, RR 480 4T RACING, RR 480 4T X-PRO Model years 2020–2026 Part group Cylinder/Cylinder Head/Valvetrain Brand Beta (genuine OEM) Browse more parts for your model: RR 430 4T · RR 430 4T RACING · RR 430 4T X-PRO · RR 480 4T · RR 480 4T RACING.