OEM 370Z Radiator / Water Outlet Cap - Z1 Motorsports - Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60
my_location

Deliver to Columbus 43215

No vehicle selected! Select your vehicle
close
close
Filtersfilter_list

Ratings

Choose your vehicle
NISSAN Logo
INFINTI Logo
Have a Truck or SUV?
Z1 Off-Road Logo
Nissan 300ZX Z32 1990 1991 1992 1993 1994 1995 1996 VG30DETT VG30DE Twin Turbo Non Turbo Z1 Motorsports Logo 1990-1996
Nissan 350Z Z33 2003 2004 2005 2006 2007 2008 2009 VQ35DE 3.5l Revup Rev Up VQ35HR NISMO Z1 Motorsports Logo 2003-2008
Nissan 370Z Z34 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 3.7l VQ37VHR VHR NISMO Z1 Motorsports Logo 2009-2021
2023 Nissan Z Logo 2023+
Nissan R35 GTR GT-R AWD Twin Turbo 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 VR38DETT Z1 Motorsports Logo 2009+
Nissan Skyline Coupe Sedan R34 GTR GT-R BNR34 GTS-T GTST GTS AWD ATTESA 1999 2000 2001 2002 RB20DET RB25DE RB25DET RB26DETT Z1 Motorsports Logo 1989-2002
Nissan 240SX Silvia Zenki Kouki S14 1995 1996 1997 1998 1999 KA24DE KA24DET SR20DET RB26DETT Z1 Motorsports Logo 1989-1998
Nissan Logo Emblem Logo
Infiniti G35 Coupe Sedan V35 V36 Skyline 2003 2004 2005 2006 2007 2008 3.5l VQ35DE Revup Rev Up VQ35HR Z1 Motorsports Logo 2003-2008
Infiniti G37 Coupe Sedan Convertible V36 CV36 HV36 Skyline 2008 2009 2010 2011 2012 2013 3.7l VQ37VHR Z1 Motorsports Logo 2008-2014
Infiniti Q60 Coupe CV36 2014 2015 VQ37VHR 3.7l Z1 Motorsports Logo 2014-2016
Infiniti Q50 Sedan Hybrid V37 2014 2015 2016 2017 2018 2019 2020 VQ37VHR 2.0t 3.0t 3.7l Red Sport Redsport VR30DDTT Z1 Motorsports Logo 2014+
Infiniti Q60 Coupe CV37 2017 2018 2019 2020 2.0t 3.0t Red Sport Redsport VR30DDTT Z1 Motorsports Logo 2017+
Infiniti Logo Emblem Logo
close
check_circle_outline Added to Cart
OEM 370Z Radiator / Water Outlet Cap
shopping_cartCart
payment

Checkout

Discover More Products

OEM 370Z Coolant Reservoir Tank Cap
OEM 370Z Coolant Reservoir Tank Cap
$15.49
OEM Long Life Blue Coolant (Antifreeze) - 50/50 Pre-Mixed
OEM Long Life Blue Coolant (Antifreeze) - 50/50 Pre-Mixed
$15.72
OEM VQ37VHR / HR (Hybrid) Thermostat / Housing Assembly
OEM VQ37VHR / HR (Hybrid) Thermostat / Housing Assembly
$28.57
OEM Right 370Z Front Inner Fender Liner (L-Shaped)
OEM Right 370Z Front Inner Fender Liner (L-Shaped)
$62.57
Z1 Motorsports High Pressure Radiator Cap
Z1 Motorsports High Pressure Radiator Cap
$23.99
OEM VQ / VR38 Thermostat Gasket
OEM VQ / VR38 Thermostat Gasket
$5.50
close

OEM 370Z Radiator / Water Outlet Cap

starstarstarstarstar_border 4/5 - (1 Reviews)
Brand: Nissan
Part #:
21430-8999C - 2009-2011 Early Style > 21430-8997A
21430-C991A - 2012+ Late Style
Fits models: 370Z...

Product Description

OEM cap used on the water outlet on various VQ37 equipped Nissan and Infiniti models.

These are typical wear components that should also be checked frequently, and are responsible for maintaining consistent coolant temperatures. Replacement of the radiator cap is recommended whenever replacing the radiator.

Please note: 370Z's used two different caps depending on year / production date. Early models with a standard non-pressurized coolant reservoir use a standard style cap with a relief spring, while late production models (post 08/11 production) with a pressurized coolant reservoir use a non-sprung cap. This is optioned below as follows:

  • Early Style - Standard Sprung Cap (shown in main image)
  • Late Style - Flat Cap (shown in images to the right)

Sold Individually

Fits:

  • 2009+ Nissan 370Z

Available Options:

Please review the product description if you are unsure about any of the options below.

Model:

Quantity:

In stock, ready to ship. 
help
Price: $18.58

add_shopping_cart Add to Cart
add_shopping_cart Add to Cart
question_answerAsk A Question About This Product

Frequently Bought Together

check_circle_outline
Added to cart
Please select and verify all product options for this bundle.
check_circle_outline
Model:
OEM 370Z Radiator / Water Outlet Cap
OEM 370Z Radiator / Water Outlet Cap
starstarstarstarstar_border (1)
$18.58
add
check_circle_outline
You're good. No options for this product.
OEM 370Z Coolant Reservoir Tank Cap
OEM 370Z Coolant Reservoir Tank Cap
starstarstarstarstar (1)
$15.49
=
Bundle Price:
$34.07

Customers who bought this item also purchased ...

OEM 370Z Coolant Reservoir Tank Cap
OEM 370Z Coolant Reservoir Tank Cap
starstarstarstarstar (1)
$15.49
370Z / G37 VQ37VHR Rear Timing Cover Oil Gallery Gasket Kit
370Z / G37 VQ37VHR Rear Timing Cover Oil Gallery Gasket Kit
starstarstarstarstar_half (34)
$74.99
OEM 2009+ Nissan 370Z Cabin Air Filter
OEM 2009+ Nissan 370Z Cabin Air Filter
starstarstarstarstar_half (9)
$28.47
OEM 370Z Front Fender Liner Hardware Kit
OEM 370Z Front Fender Liner Hardware Kit
starstarstarstarstar_half (6)
$19.31
OEM VQ37VHR / HR (Hybrid) Thermostat / Housing Assembly
OEM VQ37VHR / HR (Hybrid) Thermostat / Housing Assembly
starstarstarstarstar (6)
$28.57
OEM VQ / VR38 Thermostat Gasket
OEM VQ / VR38 Thermostat Gasket
starstarstarstarstar_half (35)
$5.50

Similar to this item

Z1 Motorsports High Pressure Radiator Cap
Z1 Motorsports High Pressure Radiator Cap
starstarstarstarstar_half (88)
$23.99
OEM Radiator Rubber Mounting - Upper
OEM Radiator Rubber Mounting - Upper
starstarstarstarstar (7)
$3
350Z / G35 Lower Radiator Mount
350Z / G35 Lower Radiator Mount
starstarstarstarstar_half (10)
$6.43
350Z / G35 Radiator Mount Bracket
350Z / G35 Radiator Mount Bracket
starstarstarstarstar (1)
$25.71
OEM Coolant Reservoir Cap (Radiator Overflow)
OEM Coolant Reservoir Cap (Radiator Overflow)
starstarstarstarstar (15)
$8.86
300ZX (Z32) Lower Radiator Mount Bushing
300ZX (Z32) Lower Radiator Mount Bushing
starstarstarstarstar (8)
$8.99

What our customers say

starstarstarstarstar_border
Scott
December 3, 2022
Typical Z1 quality. Looks just like they describe. I want to keep my 2020 370Z NISMO as original as possible. I plan on this being the last of my 7 Z's i have had the pleasure of driving over the last 40 years. However, I plan on many upgrades in the future. Thank yoy Z1!