SKU: 56829653886

Koyo Hyper Cap, (Fits All Listed Koyo Radiators), 1.3 Bar, Red Racing Radiator Cap

Sale price$53.10 Regular price$59.00
Save 10%

Pay in installments of $14.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Koyo Hyper Cap, (Fits All Listed Koyo Radiators), 1.3 Bar, Red Racing Radiator CapPart # SK C13 (RED) Deep plunger fits all Koyorad radiators w filler necksPart # SK D13 (Bottom photo BLUE) Shallow plunger fits FR S, BRZ, and GT86 Extract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap! This Koyorad Hyper Cap withstands an increased valve pressure rating of 1. 3kgf cm2 (1. 3 bar) (18. 9 psi) (130 kPa) which increases the boiling point of water and relieves high

Part # SK-C13 (RED) Deep plunger fits all Koyorad radiators w/ filler necks
Part # SK-D13 (Bottom photo BLUE) Shallow plunger fits FR-S, BRZ, and GT86

Extract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap!  This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high-performance engines of excessive heat.   A genuine Koyorad Hyper Cap is recommended for use with every Koyorad All Aluminum Performance Radiator (when applicable).  This Koyorad Hyper Cap is manufactured in Japan from high-quality components to ensure longevity and performance from your Koyorad Racing radiator.

Why is increased Pressure Better?

It’s simple.  When water is pressurized, its natural boiling point is increased.  Most modern vehicles are equipped with a 0.9 Bar pressure cap.  Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit.  That is nearly a 56-degree increase over water's normal boiling point.  By increasing the boiling point of water, an engine's cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.

 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56829653886

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Brenda
Pawtucket, US
★★★★★ 5
Several uses
Size: 4 Pack
I bought these not to use for baby food. Actually I used it because they’re 4 ounces and they’re easy to use for several types of different things. I initially got it for my yogurt that I make it home cause I wanted it to be exactly a half a cup and 4 ounces is a half a cup so these are perfect for that but I recently was using it also to hold some coconut oil in it so I’m thinking you probably could put almost anything in it and of course baby food too I’m sure but I did not use it for baby food. I used it for other stuff and it’s just a great product. They seal really well. The price was pretty good. They can go in the dishwasher. They freeze real good so it’s a good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2025
J
Verified Purchase
Joanna
Boise, US
★★★★★ 5
Love these containers!
Size: 4 Pack, Size: 4 Pack
Just like the photos!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
R
Verified Purchase
Roni
Dallas, US
★★★★★ 5
Cute!
Size: 4 Pack
Pretty good! Closed and open just fine. They wash well and dry fast. Enough room to add what's needed. Easy for adults to open but kids will need help. Color is just like the picture shown! Overall I like them so far!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2025
C
Verified Purchase
Closet Treasures
Louisville, US
★★★★★ 4
Containers
Size: 4 Pack
Great storage option for the the little ones.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
I
Verified Purchase
Iryna
Pawtucket, US
★★★★★ 5
Perfect
Size: 4 Pack
Very nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

recommand products