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🚗 Keep your engine cool and your ride cooler with Koyo’s precision radiator cap!
The Koyo SK-C13 Type A Radiator Cap is a high-quality, vehicle-specific cooling system component designed to maintain a precise 1.3 Bar pressure. Manufactured in ISO 9001 certified facilities using premium aluminum and brass, it guarantees durability and a perfect fit without any modifications. Its bold red machined finish not only enhances performance but also adds a touch of style under the hood.
| ASIN | B007TNIOCC |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #148,800 in Automotive ( See Top 100 in Automotive ) #132 in Automotive Replacement Radiator Standard |
| Brand | Koyorad |
| Brand Name | Koyorad |
| Closure Type | Twist-On |
| Color | Red |
| Compatible with Vehicle Type | Car, Motorcycle |
| Customer Reviews | 4.7 out of 5 stars 269 Reviews |
| Exterior Finish | Painted |
| Global Trade Identification Number | 00847839000753 |
| Included Components | Radiator Caps |
| Item Dimensions | 5 x 3 x 2 inches |
| Item Type Name | Radiator Caps |
| Item Weight | 0.11 Pounds |
| Item dimensions L x W x H | 5 x 3 x 2 inches |
| Manufacturer | Koyo |
| Manufacturer Part Number | SK-C13 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material | Aluminum, Brass |
| Material Type | Aluminum, Brass |
| Model Number | SK-C13 |
| OEM Equivalent Part Number | SK-C13 |
| Part Interchange Info | SK-C13 |
| Style Name | Brass |
| UPC | 847839000753 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car, Motorcycle |
D**S
$$$ but good.
Fits my koyorad radiator perfectly. It's expensive but it's quality.
K**Y
Does what it's supposed to, high quality part.
So far so good. Works as intended on my 07 350z. Good build quality. This is one of those kinds of parts that it either works well or it doesn't, this fits my car and does what it's supposed to. Highly recommend, I have a Koyo solid aluminum radiator too, so take that into consideration as well. Radiator is significantly better than the stock one as well, so I recommend that as well.
L**R
Fits perfect
So far so good.
S**T
Ten Years Service and Counting on my Turbo Miata Track Car
I have used this cap on a Koyo radiator in my Turbo Miata track car since 2016. It has never leaked or given me any trouble, and the silicone seal inside is still in great physical condition and is still pliable. Let's see if it can go another 10 years.
D**N
Appears to be excellent quality; does not fit OEM 3.0L radiator
This radiator cap appears to be very well made. I bought one hoping it would fit the OEM radiator for my 3.0L Outback, but the opening on the stock radiator is really small and the seal on this cap is not. It's definitely made for Koyo's aftermarket radiator and/or the 2.5L turbo H4 Subaru stock system (not sure on that one). I returned this one and unfortunately have no options for a 1.3 bar cap unless I replace my radiator, so I'll be sticking with the stock one, I guess.
A**E
Got the job done
Did it’s job and has held up well so far
E**.
Perfect fit
Fit perfectly on my aftermarket expansion tank, koyorsd is always quality
K**Y
For BRZ/GT86/FRS w/ Koyo Al filler neck
If you bought a Koyorad All Aluminum Radiator Filler Neck for a 2013+ FR-S / BRZ / 86 pn FN2320; then this cap is a must because the factory cap does not fit it.
O**S
The koyo cap fits good looks great and doesn't leak
I like the way the cap looks on the red I like the fact that it doesn't leak and I would recommend it for anyone who has a Koyo radiator
J**T
Five Stars
Just as advertised.
Trustpilot
2 months ago
3 weeks ago