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***Currently 12 setups are in stock and would ship 3-7 days after order is placed. These are build per order using specifications that are submitted at checkout.***



The first thing that became evident to me when I started this project is that everyone’s setup will be different and unique. It would not make sense to produce just one type of fuel pump hanger because it might be overkill for some and fall short for others. By making this hanger modular, we are able to have a drop-solution for purists who simply want to run one aftermarket fuel pump to power their lightly modified Z as well as letting highest-powered Z cars run up to three fuel pumps.  In this first batch you will have an option to order your hanger with one Walbro 485 pump, two Walbro 485 pumps or a single Walbro brushless pump. If you want to run other pumps or a custom combination, please message me and I will make it happen.


Top hat design allows you to choose the type of fitting you want to run. For lightly modified vehicles, we can run smaller barbed fittings that connect directly to factory fuel supply and return lines. If you decide to upgrade down the line, the top hat can accept up to an 8AN ORB fitting on supply and return ports. That is a LOT of fuel!


An electrical 90-degree bulkhead connector will supply the necessary power to fuel pumps and sensors while keeping a low outside profile. The connector is retained with a snap ring which allows connector orientation simply by rotating it. A connector is sealed against the top hat with an o-ring which provides an easy and reliable seal. We are using a 6-wire bulkhead fitting with 4 heavy gauge wires to power and ground fuel pumps and 2 wires for sensor output.


Yes, you read that correctly, Polar Engineering fuel pump hanger comes with a new fuel level sensor and low fuel light thermistor. Both sensors have the same specs as factory units and will operate gauges in your cluster. I've had these sensors operate with Haltech IC-7 digital dash and expect it to work with all others as well.


Underneath the top hat, a high flow siphon which is large enough to bypass the extra fuel while scavenging fuel from the opposite side of the Z32 saddle-shaped fuel tank. This system functions exactly as designed at the factory and won’t require any further modifications. 


This hanger is built and all its parts are chosen specifically to be safe to use with regular gas and E85. All hoses and o-rings are submersible. All aluminum parts are Type II anodized to prevent oxidation.




-Fuel hanger top hat and pump clamps are CNC machined from 6061 aluminum

-Hanger uprights and support are waterjetted from 5052 aluminum sheet

-All aluminum components will be Type II anodized. You will have a choice of two colors for top hat/uprights/clamps:  black or red. Please note that all fittings and valves will be black.

-Fuel hanger for 2+0 model will come with a custom Polar Engineering high-flow siphon. 

-Electrical bulkhead connector features 4 heavy gauge wires to power fuel pumps and 2 wires for sensor signal. Fuel hanger will come with brand new fuel level sensor and low fuel light thermistor.

-Supply and return ports are machined for 8AN ORB threads. Hanger will come with barbed fittings by default, but can also be ordered with 6AN or 8AN fittings at no additional cost.

-All stainless steel hardware and corrosion resistant clamps. All in-tank hoses are submersible and E85 compatible.

-Fuel hanger will come with fuel pump strainers for pumps of your choice. If you are interested, Holley HydraMat can be installed as an option at extra cost.

-Polar Engineering logo will be laser etched on top hat.

-Fuel hanger will come with detailed installation instructions and schematics as well as personal support from myself.

-Pumps are not included with this hanger. Feel free to send them in for me to install and wire in, or I can source fuel pumps for you at extra cost. If you will need to purchase pumps, please select the corresponding option and I will be in touch



These hangers will be priced at USD 580.00 (USA domestic shipping calculated at checkout) (international shipping is flat rate of $108) per assembly for any combination of options that you choose. This is a full assembly and would fix the fuel supply issues a factory Z32 fuel system has. I feel like this is a reasonable price given the fact that there have not been any cut corners with this project. I design these things out of passion in my spare time. I am not planning to retire after I sell a hanger. If you are at a point where you think you need this setup, you probably looked around and can appreciate that you are getting more features than anything else on the market (even for other platforms) at a lower rate. All hangers will come pre-assembled, pre-wired, with fuel pumps of your choice installed (pumps not included). You have an option to purcase fuel pumps from me, or send your pumps for me to wire in and install. I am looking to offer this as a drop in solution that will take no more than 1 hour to install (with factory fuel lines).


Again, this is first part of Z32 fuel system overhaul and more stuff will be coming out to reliably supply your Z with all the fuel it needs.




Please ask me any questions you may have FIRST, before you commit.

I usually do not stock these and they will need to be produced and delivered.

Please do not start a full fuel system overhaul if you do not have an exact ETA from me.


Best way to order is directly through the website. It lets me keep things organized and easy to process shipping. If you have questions, please message or comment and I will clarify anything I might have missed.


If you want to know the most current status of this project, it would be best to follow Facebook page or the Instagram account @polarengineering . I will post updates as soon as I can. I am as excited as you are to have these all produced and delivered.


Once again, I appreciate everyone’s support and feedback from my previous projects. There is a lot more to come!



The design pictured is for a 2+0 model. I already have the modifications needed for the 2+2 model as well, which is significantly more simple.

NISSAN Z32 300ZX Modular Fuel Pump Hanger (2+0)


    This is the configuration on clamps that your hagner will come with. You have an option to run a main 255 pump and a staged 485/525. You can run a single 485/525/535. You can run a single 485/525. You can run a dual 485/525. You cannot run a dual 535 because they don't have cehck valves built in. You can also run a single brushless.



    Please select the fittings of your choice that you want your hanger to come pre-installed with. Fittings are removable if you change your mind down the line.



    I am currently offering BLACK or RED as available colors. 


    You have an option to add all most popular pump configurations to your hangers and have then pre-installed in your hagner before shipping. These are all genuine Ti Automotive pumps. Pump costs are as follows: Walbro255 - $65, Walbro 485 - $115, Walbro 525 (Hellcat) - $155, Walbro 535 - $155, Ti Automotive BKS-1001-4 - $710.


  • Many Polar Engineering parts, including all ignition system altering products, are sold for off-road use only. All performance modifications and installations are at the customers own risk.

    Polar Engineering or hold no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products. Items sold for off-road use only are illegal in many states and provinces and are intended for racing vehicles which may never be used on a public road.

    By purchasing any aftermarket performance product, the customer takes full responsibility for any use, and/or misuse of the product and agrees that Polar Engineering or holds no responsibility for any consequences, legal, or other, of such use and/or misuse.

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