Yokomo MS-503GO O-Ring for Aluminum Gear Differential Case 2pcs for BD-11, BD-12, and MS1.0

O-Ring for Aluminum Gear Differential Case 2pcs for BD-11, BD-12, and MS1.0 is a genuine Yokomo RC part designed for BD-11, BD-12, and MS1.0. This aluminum gear differential case and pulley assembly supports a precise and durable differential build. The tooth count should be matched to the intended drivetrain ratio, helping maintain smooth and reliable power delivery.