If you’re upgrading from a dual-mass to a single-mass flywheel on your Toyota 3L diesel, we do not recommend reusing your old bolts—they won’t seat or torque correctly.
These factory-style bolts ensure your new flywheel mounts securely to the crankshaft with the correct thread length, pitch, and flange profile. Using dual-mass bolts on a single-mass flywheel can lead to improper seating, torque failure, or driveline vibration. These bolts eliminate that risk.
