---
product_id: 14201748
title: "S&G Tool Aid 34020 Engine Compression Test Adapter, 12mm and 16mm"
brand: "tool aid"
price: "£40.61"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/14201748-s-and-g-tool-aid-34020-engine-compression-test-adapter
store_origin: GB
region: United Kingdom
---

# Fits 12mm & 16mm valves Precision-engineered adapter Lightweight 1.6 oz design S&G Tool Aid 34020 Engine Compression Test Adapter, 12mm and 16mm

**Brand:** tool aid
**Price:** £40.61
**Availability:** ✅ In Stock

## Summary

> 🛠️ Unlock engine secrets with precision and ease!

## Quick Answers

- **What is this?** S&G Tool Aid 34020 Engine Compression Test Adapter, 12mm and 16mm by tool aid
- **How much does it cost?** £40.61 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/14201748-s-and-g-tool-aid-34020-engine-compression-test-adapter)

## Best For

- tool aid enthusiasts

## Why This Product

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

## Key Features

- • **Durable Build:** Crafted by S&G Tool Aid for long-lasting performance under demanding automotive conditions.
- • **Precision Fit:** Engineered for a snug, leak-free seal ensuring accurate compression readings every time.
- • **Essential for Pros:** A must-have accessory for mechanics and DIY enthusiasts aiming for flawless engine diagnostics.
- • **Compact & Lightweight:** At just 1.6 ounces and slim dimensions, it’s easy to handle and store in any toolbox.
- • **Dual Valve Compatibility:** Seamlessly tests both 12mm and 16mm engine valves for versatile diagnostics.

## Overview

The S&G Tool Aid 34020 Engine Compression Test Adapter is a precision-crafted automotive accessory designed to fit both 12mm and 16mm valves. Lightweight and compact, it ensures accurate compression testing, making it an indispensable tool for professional mechanics and serious DIYers alike.

## Description

Tool Aid - 12Mm & 16Mm Compression Test Adapter (34020)

## Features

- package height : 20.066 cm
- package length : 3.555 cm
- package width : 3.048 cm
- Product type : AUTO ACCESSORY

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | S&G Tool Aid |
| Brand | Tool Aid |
| Model | 34020 |
| Item Weight | 1.6 ounces |
| Product Dimensions | 5 x 9 x 0.5 inches |
| Item model number | 34020 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 34020 |

## Images

![S&G Tool Aid 34020 Engine Compression Test Adapter, 12mm and 16mm - Image 1](https://m.media-amazon.com/images/I/61su-VnP+3L.jpg)

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**Shop now:** [https://www.desertcart.co.uk/products/14201748-s-and-g-tool-aid-34020-engine-compression-test-adapter](https://www.desertcart.co.uk/products/14201748-s-and-g-tool-aid-34020-engine-compression-test-adapter)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-16*