DEF Delete – Disable the DEF System & Keep Your Machine Running

Innovative DEF Delete Solutions for Construction Equipment Worldwide

DEF delete emulator installed on an excavator – prevent limp mode & improve efficiency

DEF system bypass device for construction machinery – eliminate downtime & repairs

AdBlue DEF delete module for heavy equipment – fast installation & reliable performance

DEF Delete on site with Excavators in the background

Heavy-duty excavator with DEF delete installed – works in extreme conditions

Worldwide shipping of DEF delete solutions – fast delivery to USA, Canada & Europe

DEF Delete for Construction Equipment

Bypass the DEF System, Prevent Downtime, and Keep Your Machines Running

🧰 The Best DEF Delete Solution for Construction Machinery

Modern construction machines rely on Diesel Exhaust Fluid (DEF) systems to reduce emissions. But these systems often cause:

  • ⚠️ Limp mode
  • 💰 Expensive repair bills
  • ⏱ Costly downtime

Our DEF Delete Emulator Kits offer a safe, reversible solution to bypass the DEF system, keep your machines running, and prevent project delays.

💡 What Is a DEF Delete?

A DEF delete disables the Selective Catalytic Reduction (SCR) and Diesel Exhaust Fluid (DEF) system in your machine, either by:

✅ Installing a plug-and-play emulator module, or
✅ Performing custom ECU software tuning

This modification stops DEF injection, prevents NOx fault codes, disables limp mode triggers, and allows your machine to operate without DEF-related issues — without damaging the engine or affecting its performance.

🔗 Learn how DEF removal emulators work

⚠️ What It Doesn’t Do – DPF & EGR Systems

It’s important to note:

🚫 A DEF delete does not remove or interfere with:

  • The DPF (Diesel Particulate Filter) – which captures soot from the exhaust
  • The EGR (Exhaust Gas Recirculation) system – which recycles exhaust gases to reduce NOx

✅ Our DEF delete emulators are fully compatible with machines that still have DPF and EGR systems installed.
There’s no need to remove or modify these components — and no error codes will be triggered if they remain in place.

✔ You can safely disable DEF while keeping your DPF and EGR systems intact
✔ Great for machines in non-road or export applications where DEF faults are the primary issue

✅ Benefits of Disabling the DEF System

1️⃣ Eliminate DEF-Related Downtime

  • No more limp mode
  • Bypass AdBlue/DEF errors instantly
  • Operate without SCR system interference

2️⃣ Save Money on Repairs

  • Avoid pump, injector & sensor replacement
  • Stop wasting DEF fluid on failing systems
  • Get back to work while parts are on order

3️⃣ Improve Machine Performance

  • Prevent derating from false sensor data
  • Optimize fuel consumption
  • Remove cold-weather DEF crystallization issues

4️⃣ Run in Remote Locations

  • Operate with no DEF supply chain
  • Ideal for mining, forestry, off-road & export
  • Eliminate reliance on DEF refills

5️⃣ A DEF Delete Keeps Machines Running While Awaiting Repairs

  • Temporary fix that prevents downtime
  • Restore full power immediately
  • Avoid lost revenue during backordered repairs

🔧 How DEF Delete Emulators Work

Our plug-and-play emulators connect directly to your machine’s wiring harness. They simulate a working DEF system and override:

✅ DEF pump & injector errors
✅ NOx sensor faults
✅ Low DEF level warnings
✅ Limp mode triggers

🔗 Explore DEF system faults and how to fix them

🔍 Learn More About DEF & Emissions Systems

For those who want to better understand how DEF systems work — and why faults are so common — here are some trusted external resources:

🌐 What is SCR? – Learn how Selective Catalytic Reduction systems operate from the U.S. Environmental Protection Agency (EPA)

✅ AdBlue / DEF Quality Standards – Understand why poor-quality DEF fluid causes faults via ISO 22241 guidelines

🛠️ Compatible Brands and Engine Families – Explore emissions technologies used in CASE, New Holland, and FPT engines via CNH Industrial

🧪 Deep Dive into DEF Technology – See a non-commercial explanation of SCR and DEF systems from the Diesel Technology Forum

⚙️ Compatible Machine Brands – DEF Delete Emulator Kits Available For

We supply plug-and-play DEF delete solutions for a wide range of construction, agricultural, and heavy equipment brands, including:

  • Hyundai – HL & HX Wheel Loaders / Excavators
  • Doosan – DX Series Excavators, DL Series Loaders
  • CAT (Caterpillar) – Tier 4 Final models with Perkins 4.4 Engines
  • Scania – DC9, DC13, and DC16 Engines (used in off-road and industrial equipment)
  • Perkins – 1204F Engines found in various machine brands
  • Kobelco – Machines with Isuzu or HINO engines
  • CASE – Excavators and Loaders with Tier 4 SCR systems
  • Hitachi – ZX Series construction machines
  • Link-Belt – Excavators and material handlers with DEF systems
  • Hidromek – H4 and H6 Excavators and Loaders
  • Terex – Powerscreen Crushing & Screening Machines
  • JCB – (On request – depending on engine variant – ONLY ISUZU Engine)
  • Volvo – (Limited support available – check compatibility)
  • New Holland / CNH – Agricultural models with SCR-based DEF systems – (FTP Engine upto 2014)

🔗 Explore our best construction machines for DEF removal emulators

🛒 Browse DEF Delete Emulator Kits by Brand

🧊 Built for Cold Weather & Harsh Sites

  • ❄️ Avoid frozen DEF & injector clogs
  • 🧱 Eliminate DEF heater failures
  • 🏗 Keep machines operational year-round
  • 🌍 Operate in harsh, remote, or export zones with zero DEF infrastructure

🔐 Legal Use & Off-Road Disclaimer

Our DEF emulator solutions are intended only for off-road, export, or non-emissions-regulated environments.

🔗 Understand the legal considerations for DEF bypass emulators

🚚 Fast Worldwide Shipping

We offer tracked, insured delivery to:

🇬🇧 UK | 🇺🇸 USA | 🇨🇦 Canada | 🇪🇺 Europe
⚙️ Fast installation & full tech support included

📞 Get Your DEF Delete Emulator Today

Whether you’re stuck in limp mode or tired of AdBlue faults ruining your job schedule — we’ve got the solution.

📞 Call our tech team to order the right emulator for your machine: