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HKS 1.1 Bar Limited Edition Radiator Cap

by HKS
SKU 15009-AK004
Save $2.70 Save $2.70
Original price $26.97
Original price $26.97 - Original price $26.97
Original price $26.97
Current price $24.27
$24.27 - $24.27
Current price $24.27
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Here, you are looking at the HKS 1.1 Bar S-Type Radiator cap. 

This limited edition radiator cap from HKS allows your car to perform better and more efficiently by holding more pressure than a factory radiator cap.


  • 1.1 bar pressure rating
  • Polished finish w/ Red HKS Sticker

Customer Reviews

Based on 7 reviews
Limited HKS Radiator Cap Review

I bought this radiator cap as a precaution, just in case the original one was getting close to being old. I’ve been using it for a while now and I think it’s safe to say that it works good. It fits on the OEM radiator like a glove.

If you look at two of the photos, I did a side by side comparison of the old and new cap (the one with the red bottom is the HKS one).

Thank you for taking the time to leave a review for our HKS Limited Edition Radiator Cap. We are delighted to hear that it fit your OEM radiator perfectly and has been working well for you. We appreciate your proactive approach in replacing your old cap with our product. Thank you for choosing Subimods and we hope to continue providing quality products for your car. Happy driving!


Super nice jdm piece and high quality.


Thank you for your 5 Star Review! We are glad to hear that you are happy with your purchase of the HKS 1.1 Bar Limited Edition Radiator Cap. The Subimods Team strives to provide high quality JDM products, and we appreciate your feedback. Happy driving!


Derek Godoy

The HKS radiator cap looks more than cool and keeps every drop or coolant in my radiator!!


Thank you for your 5 Star Review of the HKS 1.1 Bar Limited Edition Radiator Cap. It is great to hear that not only does it look cool, but that it is also performing its essential function of keeping your coolant where it should be. Enjoy your cool and functional radiator cap!


Jose Nava
Adds a little bit of bling and does what it is supposed to

My 99 2.5rs came with an aftermarket alum radiator that had an odd cap. The radiator never seemed to utilize the coolant reservoir tank and I never thought much of it. I took the old cap off and found that there was little to resistance in the cap, as well as not having a spring on it to hold pressure adequately. Once installed, the system reaches stable temperature faster and reservoir tank is utilized as needed with the higher psi provided by the HKS cap.


Thank you for sharing your experience with the HKS 1.1 Bar Limited Edition Radiator Cap. It is great to hear that this cap not only adds a stylish touch to your Subaru 2.5rs but also improves the cooling system's functionality by maintaining proper pressure and utilizing the coolant reservoir effectively. Radiator caps play a crucial role in the cooling system, and it sounds like the HKS cap has made a positive difference in your car's performance. We appreciate your 5 Star Review! Happy driving!


J Smith
Looks great

Limited edition hks radiator cap. What's not to love. It's one of those things you always see when you open the hood. Makes me smile a bit when I do see it. Works great too. No pressure leaks and my car doesn't get too hot.

J Smith,

It sounds like you are really enjoying your Limited Edition HKS 1.1 Bar Radiator Cap! It is always nice when an automotive accessory not only looks great, but also serves its functional purpose effectively. Having a radiator cap that adds a touch of personality to your engine bay can indeed be a source of satisfaction for car enthusiasts. Enjoy!


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