OEM K-Series Valve Cover Nut and Stud Kit – K20A2/A3, K20Z1/3, K24A1/A2/A4
OEM K-Series Valve Cover Nut and Stud Kit – K20A2/A3, K20Z1/3, K24A1/A2/A4 is backordered and will ship as soon as it is back in stock.
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Restore Proper Hardware & Avoid Stripped Threads with This OEM Valve Cover Nut & Stud Kit (1-piece of each)
Don’t risk installing your valve cover on weak or worn studs. This genuine OEM K-Series Valve Cover Nut & Stud Kit includes one of each item, fit the following applications
K20A2 / K20A3
K20Z1 / K20Z3
K24A1 / K24A2 / K24A4
Why Replace Valve Cover Studs & Nuts?
Over time, repeated removal, or overtightening can weaken studs or strip threads — leading to oil leaks or possible gasket failure. Installing fresh OEM hardware ensures a precise fit, maintains torque specs, and helps the valve cover sit properly under load and heat cycles.
Key Features & Benefits
Genuine OEM Honda/Acura hardware — factory fit, no guesswork
1 Replacement stud + 1 acorn nut.
Preserves factory clamp integrity when tighten properly
Useful for rebuilds, maintenance, or when your original hardware is worn
Installation Tips (for DIYers / Mechanics)
Always use new valve cover seal grommet if possible.
Thread-conditioner or light engine oil can help during installation
Avoid over-torquing — aluminum heads are soft
Re-check torque after initial heat cycles
This kit includes
Valve Cover Nut 90213-PH3-000 x 1
Valve Cover Stud 90011-PNA-003 x 1
Fitment:
2014-2015 Honda Civic Si
2012-2013 Honda Civic Si
2009-2014 Acura TSX
2007-2011 Honda CR-V
2006-2011 Honda Civic Si
2005-2006 Acura RSX Type-S
2005-2006 Acura RSX Base
2004-2008 Acura TSX
2002-2006 Honda CR-V
2002-2005 Honda Civic Si
2002-2004 Acura RSX Type-S
2002-2004 Acura RSX Base
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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