---
product_id: 267028906
title: "Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle"
brand: "a/c pro"
price: "£20.51"
currency: GBP
in_stock: true
reviews_count: 6
category: "A/C Pro"
url: https://www.desertcart.co.uk/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle
store_origin: GB
region: United Kingdom
---

# 1 oz precision dose UV leak detection tech Universal except GM Dex-Cool Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle

**Brand:** a/c pro
**Price:** £20.51
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate leaks before they become disasters!

## Quick Answers

- **What is this?** Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle by a/c pro
- **How much does it cost?** £20.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle)

## Best For

- a/c pro enthusiasts

## Why This Product

- Trusted a/c pro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact 1 oz bottle:** Single, easy-to-use dose fits perfectly in any mechanic’s toolkit or glove box.
- • **Boost your maintenance game:** Detect leaks early to avoid costly repairs and keep your engine running flawlessly.
- • **Pinpoint leaks with UV precision:** Professional-grade dye reveals hidden cooling system leaks instantly under UV light.
- • **Trusted by pros and DIYers alike:** Highly rated with 4.6 stars from 900+ users who rely on its vibrant, reliable performance.
- • **Universal compatibility (almost):** Safe for all vehicles except 1996+ GM models using Dex-Cool, ensuring broad application.

## Overview

Interdynamics 375CS Radiator/Coolant Dye is a professional-grade UV dye designed for precise leak detection in engine cooling systems. This 1 oz bottle provides a single application compatible with nearly all vehicle makes and antifreeze types, except GM Dex-Cool models from 1996 onward. Trusted by mechanics and DIY enthusiasts, it helps identify leaks quickly and efficiently, preventing costly engine damage.

## Description

Certified A/C Pro Engine Cooling Systems UV Dye is an engine coolant UV dye for leak detection. Includes one application of radiator/engine cooling system UV leak detection dye. Safe for use in all vehicle makes and models (except 1996 and newer GM models that use DEX-COOL coolant). Compatible with all types of anti-freeze except GM DEX-COOL coolant.

Review: Very good - I use it for checking leak path in automotive heat exchangers. Works good.
Review: Vibrant colour - helped me identify where the leak was

## Features

- Contains one application of radiator/engine cooling system UV leak detection dye
- Safe for use in all vehicle makes and models except 1996 and newer GM models that use DEX-COOL coolant
- Compatible with all types of antifreeze except GM dex-cool coolant
- Helps locate leaks
- Professional grade

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002M4E0VC |
| Best Sellers Rank | #209,534 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #102 in Cooling Systems |
| Brand | A/C Pro |
| Brand Name | A/C Pro |
| Colour | Engine Cooling Systems UV Dye |
| Compatible Material | Metal |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 907 Reviews |
| Global Trade Identification Number | 00047876013758 |
| Included Components | CHEMICALS |
| Item Form | Liquid |
| Item Type | CHEMICALS |
| Item Weight | 1 Ounces |
| Manufacturer | Interdynamics |
| Manufacturer Part Number | 375CS |
| Model number | 375CS |
| Net Quantity | 1.0 Ounce |
| Number Of Items | 1 |
| UPC | 047876013758 |
| Unit Count | 1.0 Ounce |

## Product Details

- **Colour:** Engine Cooling Systems UV Dye
- **Brand:** A/C Pro
- **Item Weight:** 1 Ounces
- **Item Form:** Liquid
- **Compatible Material:** Metal

## Images

![Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle - Image 1](https://m.media-amazon.com/images/I/619cMz9TMcL.jpg)
![Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle - Image 2](https://m.media-amazon.com/images/I/71UhOcbIWyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Very good
*by S***H on 29 April 2023*

I use it for checking leak path in automotive heat exchangers. Works good.

### ⭐⭐⭐⭐⭐ Vibrant colour
*by C***O on 30 March 2026*

helped me identify where the leak was

### ⭐⭐⭐⭐⭐ Great product helped isolate my leak in an impossible to find location otherwise
*by T***D on 15 July 2025*

Works exactly as intended. Had my car out back after a delaminated crank pulley caused the belt to eat into coolant lines going to the oil cooler. Was a pain in my Audi as could not see where the leak was coming from despite my best efforts. Ran this through pressurized the system before taking the coolant system apart to find the leak in a place I wouldnt have seen otherwise. Highly recommended. I used half bottle with great visibility

## Frequently Bought Together

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- InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal

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**Shop now:** [https://www.desertcart.co.uk/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle](https://www.desertcart.co.uk/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-04*