Greddy Type-S Radiator Cap

MODEL # GRE 13901000
Manufacturer Part # 13901000


MSRP: $25.00

Ships within 2-3 weeks
Free shipping on all orders over $200.00!

The Greddy 1.3 Bar radiator cap has an increased opening pressure to help prevent pre-mature boiling of the engine coolant. This helps the coolant cool down more efficiently. It's also a great way to spice up the engine bay!

This cap will not fit the BRZ/FR-S twins.
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Brand: Greddy
Opening Point: 1.3 Bar

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.


Verified Purchase

great price and good look
manta0681038 3 years ago
Very happy as the fit and finish was awesome. Nice and easy upgrade to the car and looks good when you pop the hood.
Verified Purchase

Does it's job
xt3kn1x 4 years ago
The seal on my OEM cap was going and my car was running funny temps. Plus I would get splatter from the overflow. This cap fixed the problem. Nothing really special about it though, the Greddy sticker is cool, but it's just an aluminum cap with a sticker. In any case, it's a fully functional cap. Works great.

  • Q: 2012 WRX   jwhy89 3 years ago


    Will this work with my 2012 WRX? The OEM radiator cap is rated at 137 kPa. This one is rated at 127 kPa, correct? What is the difference?

    • A: Yes this will fit your vehicle. The stock caps should be around 90kPa and 100kPa range unless someone has changed them already to the higher pressure units. These higher radiator caps will increase the pressure of the cooling system, as a result will increase the temperature at which the coolant in the system will boil by a few degrees. This allows the coolant system to hold more energy before it boils over.

      Kirill C. 3 years ago
  • Q: 09 Lancer Ralliart  efod3 4 years ago


    Will this fit an 09 Lancer Ralliart?

    • A: As this is a universal product we can only confirm fitment on vehicles that we have been able to test it on. The Ralliart is not a car that we have test fit this product on, so we can not guarantee fitment. With that being said it should not be a issue.

      Kirill C. 4 years ago
  • Q: 2010 WRX Fitment  KDOC 5 years ago


    Just wondering if this cap will fit my 2010 WRX?

    • A: Yes this will fit your vehicle

      Kirill C. 5 years ago
  • Q: Fitment  GJJBB 5 years ago


    Will this fit a 2006 WRX STI?

    • A: Hello, This Greddy radiator cap will indeed work with your 2006 WRX/STI.

      Tanner S. 5 years ago
Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.