---
product_id: 267028906
title: "Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle"
brand: "a/c pro"
price: "€ 47.88"
currency: EUR
in_stock: true
reviews_count: 6
category: "A/C Pro"
url: https://www.desertcart.be/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle
store_origin: BE
region: Belgium
---

# 1 oz precision dose UV leak detection tech Universal vehicle compatibility Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle

**Brand:** a/c pro
**Price:** € 47.88
**Availability:** ✅ In Stock

## Summary

> 🔍 Spot leaks before they spot you – stay cool, stay ahead!

## Quick Answers

- **What is this?** Interdynamics 375CS Radiator/Coolant Dye - 1 oz. Bottle by a/c pro
- **How much does it cost?** € 47.88 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/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

- • **Safe & Reliable:** Non-corrosive formula protects your engine’s cooling system
- • **Trusted by Experts:** Professional-grade quality with 4.6-star user approval
- • **Broad Compatibility:** Works with all antifreeze types except GM DEX-COOL
- • **Pinpoint Leaks Like a Pro:** UV dye reveals hidden radiator leaks instantly
- • **One Bottle, One Application:** Perfectly measured 1 oz for a single, effective use

## 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 post-1996. Trusted by mechanics and DIYers alike, it ensures early leak identification to prevent costly repairs and maintain optimal engine performance.

## 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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- REALHUNLEE Auto Air Conditioner Leak Detector Tool Flashlight Oil AC UV Dye Leak Test Detection Kit Pro 68 LED Flashlight with UV Protective Glasses
- 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.be/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle](https://www.desertcart.be/products/267028906-interdynamics-375cs-radiator-coolant-dye-1-oz-bottle)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-23*