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Fox High Volume Nitrogen Reservoir End Cap
FOX Shock UTV High Volume Nitrogen Reservoir End Cap| Schmidty Racing Suspensions


 
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Base Price: $43.00


Product Code: UT-SK-ACC-FOX-HVNEC

FOX High Volume Replacement Nitrogen End-Cap

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Description
 

These are High Volume Nitrogen Reservoir End Cap from Schmidty Racing Suspensions to replace the OEM needle-style fill endcaps found on Fox UTV and ATV shocks as on Polaris, Honda, Yamaha, Can-Am, Kawasaki, Arctic Cat, and John Deere models. These are designed to replace the OEM needle rubber nitrogen fill port style endcaps that are found on Fox UTV shocks, which are prone to leaking nitrogen and rendering the shock useless. The rubber pellet system is also semi-difficult to fill and unreliable. Our Schmidty Racing Suspensions replacement caps have an actual schrader valve installed in them which are recessed into a pocket to protect them from trail damage. This protective feature also allows the shocks to be serviced and recharged using a standard no-loss chuck!


These reservoir caps are made from billet 6061 billet aluminum and have been black anodized then engraved with our SRS logo. On our newly redesigned caps, we have added cooling fins to the exterior of the caps, as well as increased capacity internally to maximize capacity. These endcaps have an o-ring based "schrader valve cap" which threads onto the schrader valve and seals it into the recessed pocket. This fully protects it from dirt, debris, mud, or sand! Our SRS replacement endcaps also come with a new o-ring for re-installing the replacement endcap back into the shock reservoir, as well as a set of instructions on how to install them.


Note: There are different Generation caps (GEN 1 and GEN 2) and different sizes for the GEN 2. Please be sure to read the description below as well as directions on how to measure your reservoir to make sure you get the correct size and generation cap. GEN 1 reservoir endcaps are only available in 2.0". GEN 2 reservoir endcaps are available in either 2.0" or 2.5".


To determine whether you have 2.0" or 2.5" reservoir endcap size, you simply measure the outer diameter (OD) of the reservoir. On all of the variations, look at the pictures in the description, which shows the OEM caps up in front of the new SRS ones which will replace it. Original / old style caps shown only for reference.

Base Price is for a Single End Cap.

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    GEN 1 - Fox 2.0": Podium Series

  • UTV/ATV shocks with a straight reservoir bore {no-step in the reservoir bore}
  • For GEN 1 endcaps, your OEM reservoir end cap will have a removable allen head cap screw with a "pin hole" in the center. That has a white plastic BB pressed into it.
  • If your OEM cap looks like the picture below and the OD of your reservoir is at 2.120", then you have a GEN 1 - 2.0" endcap.




  • Some of the known models that take the GEN 1 - 2.0" caps: Polaris RZR 800S (2009-12), Robby Gordon RZR 800-4, RZR 800-4, RZR XP900-2 seat, early Can-Am Mavericks & Commander, and Kawasaki Terex. (This is just a short, partial list and I am sure there are other makes / models that these will fit.)


    GEN 2 - Fox 2.0": Performance Series

  • UTV/ATV shocks will have a "stepped" internal reservoir bore and the reservoir endcap will have a "finned" lip on the end of the cap.
  • There will be not be any removable allen head screw. There will only be small hole in the center of the endcap, with a recessed rubber plug in the center.
  • If your OEM cap looks like the picture below and the OD of your reservoir is at 2.120", then you have a GEN 2 - 2.0" endcap.




  • Some of the known models that take the GEN 2 - 2.0" caps: front & rear shocks of the Honda Talon 1000X-2 seat, Front shocks only on Honda Talon 1000X-4 seat(non-live valve), Polaris RZR 800S (2013-15), Yamaha RMax, Polaris RZR 900/1000S, Polaris General 900/1000S, and later model years Can-Am Mavericks. (This is just a short, partial list and I am sure there are other makes / models that these will fit.)


    GEN 2 - Fox 2.5": Performance Series

  • UTV/ATV shocks will have a "stepped" internal reservoir bore and the reservoir endcap will have a "finned" lip on the end of the cap.
  • There will be not be any removable allen head screw. There will only be small hole in the center of the endcap, with a recessed rubber plug in the center.
  • If your OEM cap looks like the picture below and the OD of your reservoir is at 2.60", then you have a GEN 2 - 2.5" endcap.




  • Some of the known models that take the GEN 2 - 2.5" caps: front & rear shocks of the Honda Talon 1000R and Talon 1000X-4 (live valve), rear shocks only on Honda Talon 1000X-4 (non-live valve), front & rear shocks of the Fox Edition XP1000, front & rear shocks of the XP1000 Turbo (2 and 4 seat), front & rear shocks of the Can-Am Maverick X3, and XP1000 Turbo 72" S models (2 and 4 seat). (This is just a short, partial list and I am sure there are other makes / models that these will fit.)



Difference between the Metal Schrader Cap and the Fox O-ring Cap on High Volume Nitrogen Endcaps
How to install Fox UTV SRS High Volume Replacement Nitrogen Endcaps

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 182 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Quality Product December 5, 2022
Reviewer: Colleen Lonergan from Ledgewood, NJ United States  
Excellent quality! Fast shipping. Looking forward to installing the end caps and seeing the difference. Thanks!

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  0 of 0 people found the following review helpful:
 
5 of 5 Can am X3 QS3 November 26, 2022
Reviewer: Justin E from NV United States  
I started noticing a shock clunking and lost the ability to adjust the shock. I installed these and my filled the nitrogen to 190 psi. I tried 200, but at it seemed too harsh. The shocks ride like new again. These were easy to install.

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  0 of 0 people found the following review helpful:
 
5 of 5 Love the EndCaps! October 31, 2022
Reviewer: Double Diamond Racing from La Mesa, CA United States  
The Fox stock endcaps are terrible.  I won't work on their shocks unless they put the SRS Endcaps on them.

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  0 of 0 people found the following review helpful:
 
5 of 5 October 29, 2022
Reviewer: Tim Bellow from Brandon, MB Canada  


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  0 of 0 people found the following review helpful:
 
5 of 5 Fox reservoir end caps October 29, 2022
Reviewer: Justin from NV United States  
I had a QS3 shock leak out the nitrogen on one of the shocks. These were a simple and easy fix. There were no guidelines or instructions, which has become normal for a lot of products. I was most interested in what depth the floating piston in the reservoir should be. The shock with no nitrogen was 5” and the other was 6”. I also wish there was some guidance reference what psi to set the nitrogen. I filled them to 200 psi, but they feel pretty stiff. The product does work great. I’ll play with some different pressures in the shock bladder to find what works best for me.

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