Washer, Turbo Cone Disk 10.5 (Genuine) EVO1-9, Galant VR4 4G63, EVOX

The MR187848 is more than a standard fastener; it is a high-performance Belleville (conical) spring washer designed to survive the 900°C+ thermal cycles of the Mitsubishi 4G63 turbocharger system. This genuine OEM component is essential for any turbo install or manifold service. Why Use the Cone Disk Design? Active Thermal Compensation: Unlike flat washers, the conical shape acts as a heavy-duty spring, maintaining constant clamping force as turbo studs expand and contract during extreme heat. Vibration Locking: Provides continuous tension that prevents nuts from backing off under high-frequency engine harmonics, eliminating the need for unreliable adhesives. Hardware Protection: Prevents "stud & bolt stretching" and flange warping by absorbing mechanical stress, significantly extending the life of your turbo mounting hardware. Perfect Fitment: Precision-sized at 10.5 mm for a seamless fit on EVO 1-9, Galant VR4 4G63, EVOX