Heating and Cooling› Thermostats, Housings and Fillers

Koyo

Type A Deep Plunger Radiator Cap

$49.20

SKU: koySK-C13

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return

Overview

The Koyo SK-C13 is a universal radiator cap designed to enhance cooling system performance. It has a Type A Deep Plunger design and a pressure rating of 1.3 kgf/cm2 (1.3 bar / 18.9 psi).
Show original supplier description
The Koyo Universal Hyper Red Radiator Cap (SK-C13) is designed to maximize the performance of your cooling system, particularly when paired with a Koyo All Aluminum Radiator. This cap offers a Hyper Red finish and is constructed from durable aluminum and brass materials in Japan, ensuring longevity and reliable performance. With a Type A Deep Plunger design, this radiator cap withstands an increased valve pressure rating of 1.3 kgf/cm2 (1.3 bar / 18.9 psi / 130 kPa). This higher pressure rating increases the boiling point of coolant, which in turn helps to relieve high-performance engines of excessive heat and improve overall cooling efficiency. The Koyo SK-C13 is a universal fit and is highly recommended for use with all KoyoRad All Aluminum Radiators.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKoyo
Part NumberkoySK-C13
CategoryHeating and Cooling
5,000+ Trusted brands
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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