5x Pistons Rings Set STD for S40 S60 S80 C30 C70 XC90 2.5T T5 L5 B5254T 30731508 This piston ring set is designed for use with specified engine models. It includes five rings sized to fit standard bore applications. The set is compatible with engines used in certain vehicle models equipped with the B5254T engine designation. Components are engineered to maintain proper compression and support engine performance. Installation requires adherence to standard mechanical procedures for piston ring replacement. Compatibility Note: This is a third-party part. All brand/model references are for fitment purposes only.