This outdrive was used on Nissans in the late 80s and early 90s. The only markings on the is DP. Some of them have the single exhaust port some have the bubble on the bottom like dp-d. All of them have this center in between the upper and lower containing the lower bearing race. I assumed it was a dp-a, but I cannot find any part list that has this centerplate. I need the water inlet washer and packing but I have not been successful for days on figuring out what this is. There are no part numbers on it (like most volvo stuff) so it has been difficult. The rest just look like a normal dp.​​​​​​​