R33 GTR Fuel Pump DIY Guide


There are a lot of options when it comes to replacing your 25 to 30 year old fuel pump, like an overwhelming amount. Next to changing out all your fluids/oils and your fuel filter, this should be at the top of your list after purchasing a Skyline.



I decided to go with the Tomei drop in filter for a few reason. The first was that Tomei has an awesome reputation for rb26 parts. The second was that it was much cheaper than a stock OEM pump and also provided an 80 L/h over OEM as well. Besides the price, it’s also a direct drop in replacement. No modification necessary.


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All right, here is some mandatory items needed for this install. A new fuel pump gasket seal (17342-79900, comes with the tomei fuel pump!), the fuel pump, about a foot+ of new fuel line, some gloves, and a wrench. That’s it!


Depending on what year/model of your car is you may or may not have this giant rear black bracket.


The right side is the same as the left, you should remove the four green bolts and if you want to move the rear strut bar you can. I found it helpful to hold on to with my free hand while being bent over the trunk.


Here is a picture of the left side, same four bolts highlighted in green.


Alright, once you pull the black bracket out of the way you’ll have access to these four bolts that secure your dust cover over your fuel pump housing.


If you haven’t disconnected your battery yet, now is a good time to do so. Carefully remove the two plugs from the top of your fuel pump housing.


I highly suggest you rent a tool from your local auto parts store that latches on to these tabs highlighted in green. I went to a few parts store and no one had this available to loan out. Remove the three fuel lines coming out of the way before you begin. Consider replacing these lines as part of this job as well.


A large philips head wrapped in painters tape with a mallet worked just fine as a backup. Start off with light taps to the best tab to spin this thing to the left, it’ll take a while… be patient!


After you lift the housing out of the fuel tank, remove this last plug before yanking the fuel pump and the hanger out.


Here is the new fuel pump (bottom) next to the old one (top). You need to remove the black cap on the bottom circled in blue and take the three gold clamps along with the regulator (circled in blue) to use on your new fuel pump. Make sure to replace the two fuel lines on each side of the regulator with the new fuel line.

Here are all the pieces you need to transfer over, pay attention to the seven pins and clamps. You can’t see them that well in the picture, that’s my bad.


Make sure to install the new seal on your top housing cap.


After all is said in done, here what your new pump should look like with the old hanger, brackets, pins and top cap installed.


Here is another angle of what it should look liked once everything is transferred over. The two green arrows are pointing to the two pins that you needed to remove along with the clamps and transferred over to the new pump.


That’s it! Here is another image from Tomei’s website showing what it should like on the bracket as well and how much work/extra parts goes into a “interchangeable” aftermarket fuel pump. As of May, 2023 they claimed to only have ~70 left in stock from their last production run and may not make any ever again.