---
product_id: 50029388
title: "18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual)"
brand: "tamerx"
price: "€ 44.30"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.it/products/50029388-18mm-diesel-fuel-injector-cap-block-off-tool-compatible-2007
store_origin: IT
region: Italy
---

# 18mm fuel line nut fit Quick injector fault ID Compatible with 2007-2017 6.7L Cummins 18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual)

**Brand:** tamerx
**Price:** € 44.30
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose Diesel Defects Like a Pro — Don’t Let Faulty Injectors Slow You Down!

## Quick Answers

- **What is this?** 18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual) by tamerx
- **How much does it cost?** € 44.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/50029388-18mm-diesel-fuel-injector-cap-block-off-tool-compatible-2007)

## Best For

- tamerx enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Fault Isolation:** Pinpoint faulty injectors fast to minimize downtime
- • **Multi-Vehicle Compatibility:** Works beyond Cummins on any 18mm fuel line nut-equipped engine
- • **Precision Fit for 18mm Fuel Lines:** Seamlessly blocks off injectors for accurate diagnostics
- • **Durable Stainless Steel & Plastic Build:** Built to withstand tough workshop environments
- • **Engineered for 6.7L Dodge/Cummins (2007-2017):** Tailored tool for your diesel powerhouse

## Overview

The TamerX 18mm Diesel Fuel Injector Cap/Block-Off Tool is a must-have for professionals working on 2007-2017 Dodge/Cummins 6.7L engines. Designed to quickly identify faulty injectors by blocking fuel lines, it helps restore optimal fuel rail pressure and diagnose engine knock issues. Crafted from durable stainless steel and plastic, this compact 1.75 x 1 x 1 inch tool fits any vehicle with an 18mm fuel line nut, making it versatile for diesel engine troubleshooting.

## Description

This package includes one (1) Cap/Block-Off Tool. The TamerX Diesel Fuel Injector Cap / Block-Off Tool for 2007-2017 6.7L Dodge/Cummins Diesel is a toolbox essential for everyone working on common rail fuel systems. When a common rail engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is under 5,000 PSI (on a 6.7L engine), the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue. To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start. In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can’t use a scan tool or if a scan tool is unavailable. Make: Dodge / Cummins, Year Range: 2007-2017, Engine: 6.7L Cummins Diesel. This tool will also work on other vehicles with a 18mm fuel line nut.

## Features

- Includes 1 diesel fuel injector block-off tool.
- An essential tool for anyone who works on 6.7L Common Rail Cummins Engines
- Helps in identification of faulty diesel fuel injectors and also used to diagnose engine knock sounds
- This tool will also work on other vehicles with a 18mm fuel line nut

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | TamerX |
| Color | Gold |
| Material | Metal, Plastic |
| Exterior Finish | Stainless Steel |
| Item dimensions L x W x H | 1.75 x 1 x 1 inches |
| Vehicle Service Type | Truck |
| Style | Modern |
| Item Weight | 2.65 Ounces |
| Manufacturer | TamerX |
| UPC | 086547482981 |
| Item Weight | 2.65 ounces |
| Product Dimensions | 1.75 x 1 x 1 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | TX67CT-1 |

## Product Details

- **Brand:** TamerX
- **Color:** Gold
- **Material:** Metal, Plastic
- **Exterior Finish:** Stainless Steel
- **Item dimensions L x W x H:** 1.75 x 1 x 1 inches

## Images

![18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual) - Image 1](https://m.media-amazon.com/images/I/61Lkmxfz5PL.jpg)
![18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual) - Image 2](https://m.media-amazon.com/images/I/61eWMJj5l7L.jpg)
![18mm Diesel Fuel Injector Cap/Block-Off Tool, Compatible with 2007-2017 Dodge/Cummins 6.7L (Individual) - Image 3](https://m.media-amazon.com/images/I/71L75F+osnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you own a 6.7 Cummins just get one so you can limp your truck home
*by C***Y on June 26, 2019*

Bought just in case a injector fails so I can limp my truck home

### ⭐⭐⭐⭐⭐ Works as it should
*by T***Y on August 7, 2018*

Fits great. Just like oem tool, cant say much more about it lol

### ⭐⭐⭐⭐⭐ Fast shipping and great quality
*by A***R on March 5, 2019*

Item as described and works flawlessly

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-07*