---
product_id: 16912760
title: "Koyo SK-C13 Radiator Cap"
brand: "koyorad"
price: "€ 70.37"
currency: EUR
in_stock: true
reviews_count: 10
category: "Koyorad"
url: https://www.desertcart.be/products/16912760-koyo-sk-c13-radiator-cap
store_origin: BE
region: Belgium
---

# 16lb pressure rating Universal fit for all Koyo radiators Premium OE-grade aluminum & brass Koyo SK-C13 Radiator Cap

**Brand:** koyorad
**Price:** € 70.37
**Availability:** ✅ In Stock

## Summary

> 🔴 Lock in performance with Koyo’s bold red power cap!

## Quick Answers

- **What is this?** Koyo SK-C13 Radiator Cap by koyorad
- **How much does it cost?** € 70.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/16912760-koyo-sk-c13-radiator-cap)

## Best For

- koyorad enthusiasts

## Why This Product

- Trusted koyorad brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Seamlessly fits all Koyo radiators—no guesswork, just perfect fit
- • **Vibrant Hyper Red Finish:** Stand out under the hood with a bold, corrosion-resistant red cap
- • **Durable Premium Materials:** Crafted from OE-grade aluminum and brass for unmatched heat resistance
- • **Trusted Quality Assurance:** Backed by Koyo’s rigorous testing and a strong 4.7-star user rating
- • **Precision Pressure Control:** Maintains optimal 16lb pressure for peak cooling performance

## Overview

The Koyo SK-C13 Radiator Cap is a universal-fit, high-quality automotive part engineered with premium aluminum and brass. Rated for 16lb pressure, it ensures optimal cooling system performance while resisting harsh heat cycles. Its vibrant hyper red finish adds a sleek, durable touch, making it the go-to upgrade for Koyo radiator owners seeking reliability and style.

## Description

Koyo Quality begins with our selection of premium OE grade materials such as: aluminum, copper, brass, and plastics. Koyo products are not only developed and tested to be resilient to harsh outside elements, but also years of under-hood heat cycling as well.

Review: $$$ but good. - Fits my koyorad radiator perfectly. It's expensive but it's quality.
Review: 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.

## Features

- Radiator Cap Hyper Red Radiator Cap; For All Koyo Radiators; 16lb. Pressure Rating [Universal]

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** Koyorad
- **Color:** Red
- **Material:** Aluminum, Brass
- **Exterior Finish:** Machined
- **Item dimensions L x W x H:** 5 x 3 x 2 inches

## Images

![Koyo SK-C13 Radiator Cap - Image 1](https://m.media-amazon.com/images/I/71+3QYhxUML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ $$$ but good.
*by D***S on March 4, 2026*

Fits my koyorad radiator perfectly. It's expensive but it's quality.

### ⭐⭐⭐⭐⭐ Does what it's supposed to, high quality part.
*by K***Y on March 2, 2020*

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.

### ⭐⭐⭐⭐⭐ Fits perfect
*by L***R on April 13, 2026*

So far so good.

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**Shop now:** [https://www.desertcart.be/products/16912760-koyo-sk-c13-radiator-cap](https://www.desertcart.be/products/16912760-koyo-sk-c13-radiator-cap)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-07-03*