---
product_id: 540110157
title: "B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100)"
brand: "b3c fuel solutions"
price: "$174.90"
currency: USD
in_stock: true
reviews_count: 2
category: "B3 C Fuel Solutions"
url: https://www.desertcart.ec/products/540110157-b3c-fuel-solutions-def-7-040-9-diesel-exhaust-fluid
store_origin: EC
region: Ecuador
---

# Pack of 100 strips for long-term, cost-effective monitoring Accurate color-change indicator for precise results Rapid contamination detection in seconds B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100)

**Brand:** b3c fuel solutions
**Price:** $174.90
**Availability:** ✅ In Stock

## Summary

> 🚀 Stay ahead of costly repairs with instant DEF purity checks!

## Quick Answers

- **What is this?** B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) by b3c fuel solutions
- **How much does it cost?** $174.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/540110157-b3c-fuel-solutions-def-7-040-9-diesel-exhaust-fluid)

## Best For

- b3c fuel solutions enthusiasts

## Why This Product

- Trusted b3c fuel solutions brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Simple & User-Friendly:** No tools or expertise needed—just dip and watch for color change
- • **Prolong SCR System Life:** Keep your Diesel Exhaust Fluid pure and your emissions system running smoothly
- • **Cost-Effective Bulk Pack:** 100 test strips ensure ongoing protection without breaking the bank
- • **Instant Contamination Alerts:** Dip and detect contamination in seconds to avoid costly SCR damage
- • **Regulatory Compliance Made Easy:** Maintain DEF quality to meet environmental standards effortlessly

## Overview

B3C Fuel Solutions DEF 7-040-9 Test Strips provide a fast, reliable, and affordable way to detect contamination in Diesel Exhaust Fluid and other hydrocarbons. Designed for easy dip-and-read use, this pack of 100 strips helps professionals maintain SCR system health, avoid expensive repairs, and ensure compliance with environmental regulations.

## Description

DEF 7-040-9 Contamination Test is a crucial solution utilized to detect contamination in various hydrocarbon fuels such as diesel fuel, oil, gasoline, and gas. Maintaining the purity of Diesel Exhaust Fluid (DEF) is essential to prevent damage or shorten the life of the Selective Catalytic Reduction (SCR) system. Our innovative DIP and DETECT test strips offer a easy to use, fast, and cost-effective solution for DEF contamination testing. Simply dip the test strip into the DEF fluid in the DEF tank, and any color change on the strip will indicate the presence of oil contamination.

Review: Awesome - Awesome, when I recieved my test strips I happened to have a diesel contaminated def tank on the ground. I tested one in the contaminated def and found it turns dark blue, tested another in fresh def, doesn't change colors at all. If I had had them during the diag wouldn't have had to drop the tank for inspection, would have seen that during then doser flow test and tested the sample.
Review: fast dillivery - works like it should thanks

## Features

- DEF 7-040-9 Contamination Test quickly detects contamination in diesel fuel, oil, gasoline, and other hydrocarbons
- Keeping Diesel Exhaust Fluid (DEF) free of contamination is crucial to prolong the life of the SCR (Selective Catalytic Reduction) system
- Maintain the quality of your DEF to avoid costly repairs or replacements of SCR components, and ensure compliance with environmental regulations
- The DIP and DETECT Test Strips are simple to use. Just dip the test strip into the DEF tank and look for any color change, indicating contamination
- Our DIP and DETECT test strip is a simple, fast, and inexpensive solution to safeguard your DEF system and optimize your fuel performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C43S5TK7 |
| Best Sellers Rank | #54,818 in Automotive ( See Top 100 in Automotive ) #63 in Diesel Additives |
| Date First Available | May 17, 2023 |
| Item Weight | 1.13 ounces |
| Item model number | 7-040-9 |
| Manufacturer | B3C Fuel Solutions |
| Package Dimensions | 10.51 x 6.34 x 0.47 inches |

## Product Details

- **Brand:** B3C Fuel Solutions
- **Manufacturer:** B3C Fuel Solutions
- **Ph Range:** 8.0-10.0
- **UPC:** 851515006038

## Images

![B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) - Image 1](https://m.media-amazon.com/images/I/71xNf3HuwbL.jpg)
![B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) - Image 2](https://m.media-amazon.com/images/I/71nYyAdixaL.jpg)
![B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) - Image 3](https://m.media-amazon.com/images/I/71p3AEt0NtL.jpg)
![B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) - Image 4](https://m.media-amazon.com/images/I/71a7GUyhCdL.jpg)
![B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100) - Image 5](https://m.media-amazon.com/images/I/51hEcFeHsdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome
*by J***H on March 12, 2025*

Awesome, when I recieved my test strips I happened to have a diesel contaminated def tank on the ground. I tested one in the contaminated def and found it turns dark blue, tested another in fresh def, doesn't change colors at all. If I had had them during the diag wouldn't have had to drop the tank for inspection, would have seen that during then doser flow test and tested the sample.

### ⭐⭐⭐⭐ fast dillivery
*by C***N on May 17, 2024*

works like it should thanks

## Frequently Bought Together

- B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100)
- DEF Refractometer for Measuring Diesel Exhaust Fluid Concentration of Diesel Engines
- Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid tester)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-10*