Z1 Motorsports High Capacity Differential Cover Kit - Z1 Motorsports - Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60
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Z1 Motorsports High Capacity Differential Cover Kit

starstarstarstarstar_half 4.9/5 - (24 Reviews)
Fits models: 350Z / 370Z / G35 / G37 / Z / Q60 2014-2016 /...

Product Description

Z1 High Capacity Differential Cover for your Nissan 350Z, 370Z, Infiniti G35 or G37 / Q60.

Excess heat inside the differential case can lead to premature failure of every component, especially the factory viscous differential which also becomes less effective at higher temperatures. Not only does the heat damage the internal components including bearings and seals, but often times we have found the factory and aftermarket differential bushings melted. The best way to combat high temperatures inside the differential is to transfer the heat outside.  This finned differential cover acts as a heat sink which allows the heat that builds up in the fluid to be transferred into the cast aluminum cover where the heat can be released through the integrated fins into the cooler ambient air rushing over them.

Another good way to fight higher temperatures is to increase the amount of fluid. This cover increases fluid capacity by .5L. The additional fluid helps keep temperatures down by increasing the amount of time it takes for temperatures to rise, lessening the likelihood of overheating your differential. 

Overall keeping the fluid cool will help your differential function properly meaning more power transfer to the rear wheels. 

With racing in mind, we added extra support to the rear mounting stud with additional gusseting and more material surrounding the stud itself. We also added an extra port to this cover to accommodate a differential cooler assembly and a pre located position for a temperature sensor to control your cooler's fans. (For those that are not using a cooler we include the additional plug and sealing washer for this port.)

Z1 Aluminum Differential Covers are sealed to porosity just like OEM covers to prevent fluid from seeping through the casting.    

Kit Includes:

  • Z1 High Capacity Differential Cover
  • Vent Tube 
  • Mounting Stud
  • Cooler Return Port Plug (Re-use your existing drain and fill plugs)
  • 3 Drain / Fill Plug Sealing Washers
  • 1 Tube of Ultra Grey RTV

Fits:

  • 2003-2008 Nissan 350Z
  • 2003-2008 Infiniti G35
  • 2009-2020 Nissan 370Z
  • 2008-2013 Infiniti G37
  • 2014-2015 Infiniti Q60 Coupe
  • 2014-2015 Infiniti Q40 Sedan
  • 2023+ Nissan Z
    Sport models ONLY!

Please Note: This Upgraded Differential Cover cannot be used on models equipped with 4 Wheel Steering.

Shown below being installed with Tomei's Tech Trax Limited Slip Differential

 

*** This item does not qualify for any additional discounts or promotions ***

Quantity:

In stock, ready to ship. 
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List Price: $249.99
Special Price: $199.99
You Save: $50.00 (20%)

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Z1 Motorsports High Capacity Differential Cover Kit
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starstarstarstarstar_half (24)
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Questions our customers have asked

so the stock cover holds 1.4 liter Fluid , after upgrading to Z1 Cover it can hold 1.9 liter Correct or its over Limit ?
Correct the volume is increased about .5L. You will set the level with the lower hole on the side just like factory.

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What our customers say

starstarstarstarstar
Philippe
February 29, 2024
Fits well, looks nice at the differential and still has enough clearance.
starstarstarstarstar
Kyrylo
February 3, 2024
Great quality! Great packaging for far away shipping! Very fast shipping! Thanks!
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Max
February 1, 2024
This is the easiest option for keeping the diff cool during hard driving and it wasn’t too difficult to install. The cover looks great and fits perfectly.
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Nathaniel
December 15, 2023
Requires partial removal of 2 heat fins to clear HKS Hi-Power exhaust. Otherwise, no issues observed so far. Looks good and should help keep diff cool.
starstarstarstarstar
Jessy
December 11, 2023
Super easy install and gives more aggressive look to the differential.also the fins it has to get air flow and heat level down is awesome. I totally recommend this differential cover for your G35/350z
starstarstarstarstar
Thomas
October 14, 2023
Cooling fins, Extra fluid capacity, really helps out when on the track.
starstarstarstarstar
Nikolay
July 21, 2023
The best R200 single stud differential cover ever. Better quality than nismo cover.
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Anthony
June 7, 2023
I love this cover. If you intend on doing any differential work and or want high capacity/ cooling/ potential external cooler/ temperature sensor this is a great part. Installation and fitment was perfect, no leaks!
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Jonathan
May 4, 2023
Can only use the z1 diff brace😕. My gktech one doesn’t work with it…
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Earnest
April 7, 2023
Easy to install, take your time, I did a complete refurbish or freshen up on the differential out of the car.
starstarstarstarstar
Chase
March 21, 2023
Love the look from the rear and it made the capacity bigger so more fluid, less problems! MUST HAVE PRODUCT! Especially if you’re doing the rear drivetrain support kit
starstarstarstarstar
Tristan
December 16, 2022
Great benefits, fitment, and I love the look!
starstarstarstarstar
Joseph
October 27, 2022
Differential is now super cool! While your there bushings should be replaced as well.
starstarstarstarstar
Anthony
September 29, 2022
Superb quality and the added fluid capacity gives me the pace of mind that I wont be overheating my differential.
starstarstarstarstar
Chris
June 3, 2022
Great product just order my brace as well 🔥🔥🔥
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Dane
May 19, 2022
Holds more Fluid and looks good doing it. I always upgrade this with a diff bushing service - Dane
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Neng
March 23, 2022
This upgrade is a must for built diffs since the extra oil capacity is a cheap, no-brainer insurance policy on an expensive LSD. Great aftermarket support for temp sensor monitoring and optional oil cooler circuit. It looks great, which is important since it's visible to onlookers from the rear, and passively maintains cooler diff oil temperatures than the stock cover.
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Travis
February 27, 2022
Tip for inserting the vent tube. Freeze it first - yes. Then grab the tube with a pair of pliers at its base and strike the plier jaws downward whilst holding it tightly. A punch will only mangle it. You're welcome.
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Roberto
July 26, 2021
I love drifting and spinning out. I installed a temp gauge on mine so I can monitor when it’s too hot. Waste of time installing a gauge. It now never overheats no matter how hard you spin or drift. Worth every cent.
starstarstarstarstar_border
Beau
February 13, 2021
Back single mount post didn’t utilise all the thread of the stud (too shallow) though no issues after 20k kms and a heap of track use with OS giken superlock 1.5way and 4.08 FD. No issues with temps during my 5-6 lap stints for time attack
starstarstarstarstar
Guy
February 11, 2021
Looks great and functions even better. My nismo is a happy girl lol.
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Shawn
February 15, 2018
Very nice and looks great on! Plus more fluid capacity and better cooling to boot
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Michael
April 12, 2017
We rebuild lots of Nissan differentials here in Australia and thought we'd try out this cover from Z1 on our shop 370Z. This is the best quality casting we've ever seen! The only thing that comes close are solid billet covers that cost 5x the price. We will be recommending this part to all of our customers.
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Spencer
May 11, 2016
I added one of these diff covers last year as an upgrade when doing fluid maintenance on my diff. I found that my diff had been getting so hot after a track day that the magnet in the drain bolt deformed all droopy from starting to melt. Since the install I have done 3 more track days and didn't notice any issues at my last service. I think the fluid staying cooler will let me get an additional event out of it's use before needing to be serviced, so I tell my wife mods like this pay for themselves!