Nissan OEM R33 RB25DET Crank Pulley
This new Nissan OEM replacement harmonic balancer is just the part you need in finishing up your stock or OEM+ rebuild on your R33 RB25. Replacing your crank pulley is important as it reduces the harmful harmonics in your engine. Most of the used balancers on motors have been there since the late 80's early 90's. This component is considered a wear and tear item that should be routinely replaced.
The bore size is the same as the other RB cranks and can be used on other RB's that are utilizing R33 RB25 accessories (power steering, etc). Although similar to the RB25 NEO, this balancer uses a 3 rib power steering pulley rather than a 4 rib found on the NEO.