In this article’s the rotors installed. The inventory pump is a true Gerotor, in which the HKS and most aftermarket pumps are more of a Duocentric rotor style and design. Both Infiniti and Nissan have used the VH45DE engine. Having said that, the VH45DE was only applied to two models. https://rb26det-for-sale93692.estate-blog.com/27871310/rb26-engine-for-sale-an-overview