Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
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Nissan Frontier D41 2022 2023 VQ38DD 3.8l S SV PRO-X PRO-4X Z1 Off-Road Logo 2022+
Nissan Frontier D40 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 VQ40DE VQ38DD QR25DE 4.0l 3.8l 2.5l S SE SL SV LE XE PRO-4X OFFROAD Z1 Off-Road Logo 2005-2021
Nissan Frontier D22 1998 1999 2000 2001 2002 2003 2004 KA24DE VG33E 2.4l 3.3l SC SE XE Z1 Off-Road Logo 1998-2004
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Nissan Titan A60 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 VK56DE 5.6l S SE SV SL LE XE PRO-4X OFFROAD Z1 Off-Road Logo 2004-2015
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Infiniti QX60 L50 2013 2014 2015 VQ35DE VQ35DD 3.5l Z1 Off-Road Logo 2013-2015
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Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
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Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 2
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 3
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 4
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Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 2
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 3
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 4

Product Description

Z1 Off Road Radiator Overflow Cap Kit is indented for the non pressurized to go onto the radiator assembly and the pressurized radiator cap to go onto the coolant reservoir on the VQ40DE equipped models.

Kit Includes:

  • 1 - Z1 Off Road Non pressurized Radiator Cap
  • 1 - Z1 Off Road High Pressure Radiator Overflow Cap

Fits:

  • 2005-2015 Nissan Xterra 4.0L 
  • 2005-2021 Nissan Frontier 4.0L
  • 2005-2012 Nissan Pathfinder 4.0L

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

Z1 Off Road Radiator Overflow Cap Kit - VQ40DE

Brand: Z1 Off-Road
Fits models: FRONTIER D40 / XTERRA N50 / PATHFINDER R51...
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 2
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 3
Z1 Off Road Radiator Overflow Cap Kit - VQ40DE - View 4
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$49.98
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Z1 Off Road Radiator Overflow Cap Kit - VQ40DE
$49.98
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What our customers say

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March 29, 2026
Better than OEM, if you ask me.
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December 24, 2025
This was the first maintenance product I have purchased for my new to me frontier. This company has an easy to navigate website, excellent selection of quality parts and the radiator caps came WELL packaged!! I did a lot of research on different groups and Z1 was the main choice and recommendation in every group and I now understand why! I know where I'm looking for all my future frontier needs! Thank you Z1!!
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November 23, 2025
Needed a new set of caps for my 2015 Xterra, had a small leak on the radiator cap so was time to replace both.
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January 16, 2025
While these are certainly a good replacement for aging and failing oem caps, I failed to observe any improved coolant benefit compared to my functioning oem caps. It’s good to understand individual results will vary.
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April 25, 2024
The perfect replacement for the CSF all aluminum radiator. No tab trimming required.
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February 17, 2024
Not simply bling they are exact fit. The pressure cap looks well made. Stopped a slight seeping leak. The radiator didn’t lose much coolant, but the odor was there after hot days.