---
product_id: 172573074
title: "Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool for Chevy GMC Duramax 6.6L and Dodge Cummins 5.9L Some Models"
brand: "kweiny"
price: "Bs.188"
currency: BOB
in_stock: true
reviews_count: 13
category: "Kweiny"
url: https://www.desertcart.bo/products/172573074-diesel-common-rail-14mm-fuel-injector-cap-block-off-tool
store_origin: BO
region: Bolivia
---

# M14x1.5mm precision fit Compatible with Duramax & Cummins Carbon tool steel durability Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool for Chevy GMC Duramax 6.6L and Dodge Cummins 5.9L Some Models

**Brand:** kweiny
**Price:** Bs.188
**Availability:** ✅ In Stock

## Summary

> 🔩 Diagnose like a pro, drive with confidence!

## Quick Answers

- **What is this?** Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool for Chevy GMC Duramax 6.6L and Dodge Cummins 5.9L Some Models by kweiny
- **How much does it cost?** Bs.188 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/172573074-diesel-common-rail-14mm-fuel-injector-cap-block-off-tool)

## Best For

- kweiny enthusiasts

## Why This Product

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

## Key Features

- • **Rugged Durability:** Galvanized carbon steel ensures long-lasting, corrosion-resistant use.
- • **Broad Compatibility:** Designed for 2001-2005 Chevy/GMC Duramax 6.6L & 2003-2007 Dodge Cummins 5.9L models.
- • **Compact & Lightweight:** Easy to handle and store with a sleek 0.9-inch profile.
- • **Instant Cylinder Isolation:** Temporarily disables suspect cylinders to identify engine knocking sources fast.
- • **Precision Engine Diagnosis:** Pinpoint faulty injectors with exact 14mm block-off fit.

## Overview

The Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool is a precision-engineered diagnostic device crafted from galvanized carbon tool steel. It fits M14x1.5mm fuel line nuts on select Chevy GMC Duramax 6.6L (2001-2005) and Dodge Cummins 5.9L (2003-2007) models, enabling quick isolation of faulty injectors by blocking fuel supply to individual cylinders. This compact, durable tool empowers professional-grade engine troubleshooting, reducing downtime and costly repairs.

## Description

Buy kweiny Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool for Chevy GMC Duramax 6.6L and Dodge Cummins 5.9L Some Models: Fuel Injectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Si me agrado. Y pude eliminar el inyector y saber que cilindro está malo
Review: works on 2006 ram 5.9 - fit our 2006 ram 2500 5.9 cummins and we found the bad injector.

## Features

- Main Usage: Identification of faulty diesel fuel injectors and diagnosis of engine cylinder knocking sounds;
- Compatibility: Fit with 2001-2005 6.6L Chevy/GMC Duramax and for Dodge/Cummins 2003-2007 5.9L, for Bosch diesel common rail system, and other vehicles with a 14mm fuel line nut;
- Working principle: Block the fuel supply to the detected cylinder, and sealed diesel common rail pipe. Make the detected cylinder temporarily stop working;
- Specification: M14x1.5mm internal thread nut;
- Material: Carbon tool steel, surface galvanized.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081NGCSVW |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,005,083 in Automotive ( See Top 100 in Automotive ) #3,424 in Automotive Replacement Fuel Injectors |
| Brand | kweiny |
| Color | Galvanized |
| Customer Reviews | 4.6 4.6 out of 5 stars (196) |
| Date First Available | November 18, 2019 |
| Exterior Finish | Galvanized |
| Item Weight | 0.493 ounces |
| Item dimensions L x W x H | 0.78 x 0.78 x 0.9 inches |
| Item model number | oz |
| Lift Type | manual |
| Manufacturer | Xingzhu |
| Manufacturer Part Number | XZAMBS001 |
| Material | Carbon Tool Steel |
| Model | M14 |
| Product Dimensions | 0.78 x 0.78 x 0.9 inches |
| Safety Rating | None |
| Style | Modern |
| Vehicle Service Type | Truck |

## Product Details

- **Brand:** kweiny
- **Color:** Galvanized
- **Exterior Finish:** Galvanized
- **Item dimensions L x W x H:** 0.78 x 0.78 x 0.9 inches
- **Material:** Carbon Tool Steel

## Images

![Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool for Chevy GMC Duramax 6.6L and Dodge Cummins 5.9L Some Models - Image 1](https://m.media-amazon.com/images/I/61qxRMNns3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***Z on March 11, 2024*

Si me agrado. Y pude eliminar el inyector y saber que cilindro está malo

### ⭐⭐⭐⭐⭐ works on 2006 ram 5.9
*by M***9 on January 26, 2024*

fit our 2006 ram 2500 5.9 cummins and we found the bad injector.

### ⭐⭐⭐⭐ Good product.
*by S***L on May 13, 2020*

Works as it should. Functions same as miller tool 9011. Must have for diagnosing Cummins fuel systems. Did take awhile to ship.

## Frequently Bought Together

- kweiny Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool
- 6 Cylinder Diesel Injector Flow Meter Diagnostic Set, Cylinder Common Rail Adaptor Test Tool Leak Off Test Kit

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**Shop now:** [https://www.desertcart.bo/products/172573074-diesel-common-rail-14mm-fuel-injector-cap-block-off-tool](https://www.desertcart.bo/products/172573074-diesel-common-rail-14mm-fuel-injector-cap-block-off-tool)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-19*