I just changed mine a few months ago, Replacing it with the BOSCH oe replacement. I wanna tell you, It was an absolute bitch to remove. Unless youv'e done this before you'll see exactly what I'm talking about. Here are the part numbers for both the oe fuel pump and the locking ring that I had replaced. Locking Ring/Plate Lock part# 17343-79900 BOSCH fuel pump/part#61075K.There is also a seal that is recommended you replace, I don't have the part#. Try www.thepartsbin.com for the fuel pump and any NISSAN dealer for the lock ring.