---
product_id: 13152462
title: "OEMTOOLS 27145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test"
brand: "oemtools"
price: "€ 50.69"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/13152462-oemtools-27145-combustion-leak-detector-plastic-and-rubber-tester-engine
store_origin: GR
region: Greece
---

# Heavy-duty mechanic-grade build Seconds to detect leaks Color change indicates combustion leak OEMTOOLS 27145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test

**Brand:** oemtools
**Price:** € 50.69
**Availability:** ✅ In Stock

## Summary

> 🔧 Don’t let hidden leaks slow you down—detect, diagnose, and dominate your engine repairs!

## Quick Answers

- **What is this?** OEMTOOLS 27145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test by oemtools
- **How much does it cost?** € 50.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/13152462-oemtools-27145-combustion-leak-detector-plastic-and-rubber-tester-engine)

## Best For

- oemtools enthusiasts

## Why This Product

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

## Key Features

- • **Portable & Organized:** Comes in a rugged plastic carrying case for easy transport and storage on the go.
- • **Rapid Leak Detection:** Pinpoint internal combustion leaks in seconds to avoid costly engine damage.
- • **Clear Visual Indicator:** Fluid color shifts from blue to yellow for instant, foolproof leak confirmation.
- • **Comprehensive Leak Coverage:** Detects blown head gaskets, cracked heads, warped surfaces, and more.
- • **Professional-Grade Durability:** Built tough for heavy-duty automotive use, trusted by mechanics everywhere.

## Overview

The OEMTOOLS 27145 Combustion Leak Detector is a hand-powered, mechanic-grade tool designed to quickly identify internal combustion leaks such as blown head gaskets and cracked engine blocks. Featuring a clear blue-to-yellow fluid indicator, it delivers fast, reliable results in seconds. Packaged in a durable plastic carrying case, this tester is essential for professional and heavy-duty automotive maintenance.

## Description

The OEMTOOLS Block Tester is ideal for finding internal combustion leaks quickly and easily. This Block Tester is designed for professional auto mechanics and heavy duty applications. The OEMTOOLS Block Tester also comes complete with a sturdy blow molded plastic carrying case.

## Features

- Leak Detector: Locate internal combustion leaks quickly and easily; Leak down tester for blown head gasket, cracked head, block pulled bolts, stud blocks, warped sealing surfaces
- Detector Test Function: The tool provides easy-to-read results; When fluid turns from BLUE to YELLOW, combustion leak is present
- Heavy Duty Engine Automotive Tester: Gasket leak test kit designed for mechanic; Combustion leak tester comes in sturdy, plastic carrying case
- Quick Results: Tests in seconds for blown head gasket, cracked head, block pulled bolts, stud blocks, warped sealing surfaces
- Combustion Leak Test: Tester identifies leaking and blocks in engine to support head gasket and block repair

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Great Neck Saw |
| Part Number | 27145 |
| Item Weight | 5.6 ounces |
| Product Dimensions | 1 x 1 x 1 inches |
| Item model number | 27145 |
| Is Discontinued By Manufacturer | No |
| Size | One Size |
| Color | Others |
| Material | Blend |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Included Components | COMBUSTION LEAK DETECTOR |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![OEMTOOLS 27145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test - Image 1](https://m.media-amazon.com/images/I/71EP4R3lAUL.jpg)

## Questions & Answers

**Q: Will it work on diesel trucks?**
A: YES... if you use the proper testing fluid.  Uview fluid can test both diesel and gas engines.

**Q: The bottom does not completely fit the radiator opening . There is a small space . Will this still work? Will coolant spill?**
A: You should draw enough coolant out of the radiator so it does not touch the tester and draw only air from the radiator through the testing fluid. This DOES NOT test the antifreeze, only air

**Q: Will this fit on a 2003 ford crown victoria and a 2003 dodge durango?**
A: It’s pretty universal so it should however I’ve never tried it on a dodge.

**Q: How do you use it?     Do you fill it full of gas and then light a match?**
A: No please do not do that. There is a fill line on the plastic see through tube.. There is a specific test fluid you buy. Drain a little coolant from the radiator or coolant overflow  so the tip of the tool doesn’t sit in the coolant fluid.  Remove the cap. Place the narrow tip in the radiator fill neck. Start the car.  Leave the tool inserted in the radiator neck you may need to hold it steady.  The rubber bulb has a suction tip. Insert that tip in the top flat orifice hole and “suck” the air in the radiator. If there is exhaust combustion gases in the coolant  the liquid will turn color from Blue to yellow.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Is it a bad gasket or not.
*by B***T on February 20, 2021*

An easy way to find out if exhaust gas is getting into you coolant from a blown head gasket, you also need the test fluid. Tested mine turned out fine, then went to the tail pipe drew three pulls of air and the fluid went from blue to yellow. So it works like a charm, for what it was intended. Also came fast.

### ⭐⭐⭐⭐⭐ Nice tool
*by L***E on April 28, 2025*

A great tool to have just in case…

### ⭐⭐⭐⭐⭐ Nice quality tool
*by T***N on August 6, 2019*

I purchased this combustion leak detector to see if my truck had a bad head gasket. The tool itself is good quality, I think it is worth having. The blue liquid did not turn yellow for the head gasket test but when I put it near the exhaust it did turn yellow.

## Frequently Bought Together

- OEMTOOLS 27145 Combustion Leak Detector, Plastic and Rubber Tester for Engine Block Leaks, Automotive Blown Head Gasket Test
- Lisle 75630 Test Fluid
- CPS UVIEW 560500 Replacement Combustion Leak Tester Fluid

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**Shop now:** [https://www.desertcart.gr/products/13152462-oemtools-27145-combustion-leak-detector-plastic-and-rubber-tester-engine](https://www.desertcart.gr/products/13152462-oemtools-27145-combustion-leak-detector-plastic-and-rubber-tester-engine)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-27*