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LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
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LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs (Part Number: )
LIC Motorsports Aluminum Cylinder Head Plugs
Subaru Models (inc. 2002-2007 WRX/STi)
Read 6 Reviews | 2 Q&As
Part # 121811
$59.95

In stock! Ships same day

Features & Product Details

Anyone who has done valve cover gaskets and/or a new build knows how much the OEM units are a drag to put in, as they are plastic and always breakdown and leak in time.

The LIC Motorsports cylinder head plugs (aka half moons) units are designed to be a replacement one time for life, as they are made from 6061 aluminum and won't succumb to the same issues as the plastic OEM units do in regards to the constant fluctuations of temperature and breakdown/shrinkage of the plastic. These are a precision fitment and depending on temps may require a tap to seat perfectly into place.

The LIC Motorsports 6061 aluminum cylinder head plugs come as a set (4 quantity), they are an inexpensive part that will ensure the backside of your motor stays leak free, and last but not least....they are PROUDLY MADE IN THE USA!

Note:
Just like with the OEM units, you must use sealant when installing these. Permatex grey or black work just fine.

Specifications

Brand: LIC Motorsports
Color: Silver
Installation Hardware Included: No
Location: Cylinder Head Oil Passage
Material: Aluminum
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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REVIEWS & CUSTOMER MEDIA

6 Reviews
5 out of 5 Stars
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(6)
4 Stars
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3 Stars
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Customer Photos and Videos
LIC Motorsports Aluminum Cylinder Head Plugs ( Part Number: 121811)
LIC Motorsports Aluminum Cylinder Head Plugs ( Part Number: 121811)
LIC Motorsports Aluminum Cylinder Head Plugs ( Part Number: 121811)
Great addition solid aluminum  1 year ago
shockwave
These are great have a much better long lasting factor over the factory plastic ones
  
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Exactly what I wanted 3 years ago
Rick C.
Had to do the valve cover gaskets but I did not want to mess with the factory half moon plugs, so I ordered a set of these and all I can say is that they fit perfect(make sure you put them in carefully so that both side are flush against the heads) and should last a life time.
  
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Quality Product 4 years ago
jake.ober201240264
These are amazing, I think every engine should have these half moon seals on them. Way better than the plastic ones.
  
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These are Sick! 4 years ago
jake.ober201240264
If you're doing any work by the valves (such as replacing valve cover gaskets) then GET THESE! these are solid aluminum (as opposed to the crap plastic stock ones) these will never bust or break or chip.
  
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1 of 1 people found the following review helpful
Installed in my EZ30D 4 years ago
dodge-venom
I've replaced the half-moons on the H6 in my car currently with factory replacements. Wasn't too happy about it because they break so easily and valve cover leaks are common on the H6, so i wanted to be able to pull it all our and reseal if necessary. So when it came to prep a spare low KM JDM H6 to drop into my car I jumped onto these. Look awesome (even though no one will see it), perfect fit, no leaks. Just make sure you install these flush before installing the valve cover.
  
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QUESTIONS & ANSWERS

  • Q: installation  KornShaDoW0975 years ago

    Do these require sealant to install or do they install dry?
    • 0 of 0 people found the following answer helpful

      A:  Your answer can be found in the above product description. Note: Just like with the OEM units, you must use sealant when installing these. Permatex grey or black work just fine.

      noah
        
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    • 0 of 0 people found the following answer helpful

      A:  Subaru uses Subabond to seal the plugs from the factory and we recommend that you use Subabond or a similar sealant with these plugs.

      Zach G. @ RallySport Direct 5 years ago  
        
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  • Q: GRB & GVB  pehshimaro5 years ago

    how come it won't work with the 08+ Sti dual avcs engine
    • 0 of 0 people found the following answer helpful

      A:  The head castings are different and don't use these parts.

      noah
        
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