A digital advertisement showing a CAT construction machine with text promoting CAT DEF delete solutions for off-road equipment.

Fix DEF Faults on CAT C4.4 / Perkins 1204F Engines – Permanently

Are you dealing with DEF faults, limp mode, or AdBlue sensor issues on your CAT equipment? Our CAT DEF delete emulator is a plug-and-play solution designed specifically for Caterpillar machines using the CAT 4.4 or Perkins 1204F engine.

✅ No ECU tuning, no downtime — just install, run for 30 minutes, and all DEF-related errors will disappear.

🛠 Supported CAT Machines (CAT 4.4 / Perkins 1204F)

We support a wide range of Caterpillar machines. Below are confirmed compatible models for our CAT DEF delete box:

🚜 Wheel Loaders

  • CAT 910M
  • CAT 914M
  • CAT 918M

🛣 Asphalt Pavers

  • CAT AP500F
  • CAT AP655F

🔧 Backhoe Loaders

  • 432F2
  • 434F2
  • 444F2

🐾 Dozers

  • D3K2
  • D4K2
  • D5K2
  • D6K2

🕳 Excavators

  • 313F L
  • 315F L (2017)
  • 316F L (2017)
  • 318F L (2017)
  • 320 / 320 GC
  • 320F L (2017)
  • 323F LN / SA / Alpine
  • 325F L (2017)

🛢 Pipelayers

  • PL61

🛞 Wheel Excavators

  • M314F
  • M315F
  • M316F
  • M317F
  • M323F

📌 Not sure if your machine is supported? Contact us with your model and we’ll confirm compatibility right away.

CAT DEF delete emulator installed on CAT 914M wheel loader – fixes AdBlue faults and disables DEF system on CAT 4.4 engines

❌ Problems with the CAT 4.4 DEF System?

The DEF system on CAT 4.4 and Perkins 1204F engines is known for recurring faults:

  • NOx sensor failure
  • DEF injector problems
  • Crystallization of AdBlue
  • DEF pump faults
  • Limp mode or derate status

Even worse? Dealer parts can take months to arrive — leaving your machine down when you need it most.

✅ With our CAT DEF delete box, you don’t need to replace anything.
💡 Even if your machine is already in limp mode, install the box and within 30 minutes your DEF faults will clear.

✅ CAT DEF Delete Emulator: Eliminate AdBlue Faults Fast

Caterpillar machinery powered by the C4.4 or Acert 4.4 engine is known for reliability — but the DEF system often tells a different story. When your CAT machine enters limp mode due to SCR or NOx sensor issues, you need a fast, effective fix. Our CAT DEF delete emulator is the go-to solution for operators looking to permanently disable the DEF system without costly dealer repairs or engine tuning.

Designed to work seamlessly with CAT pavers, backhoes, dozers, and excavators, this plug-and-play module bypasses all DEF system components and prevents future AdBlue-related faults. Installation takes less than an hour and restores full engine performance — even if the machine is already derated.

Whether you’re running a 914M wheel loader or a D5K2 dozer, our CAT DEF delete emulator puts you back in control. Stop wasting time on DEF sensors and injector failures — and start working without interruption. We ship globally and offer full support with every order.

⚙️ What Our CAT DEF Delete Emulator Does:

  • ❌ Disables the DEF / AdBlue system
  • ✅ Eliminates all future DEF-related error codes
  • ✅ Works on machines even in limp mode
  • ✅ Plug-and-play — no tuning or software needed
  • ✅ Fully reversible
  • ✅ Ideal for off-road machinery

📞 Ready to Eliminate DEF Problems from Your CAT Equipment?

We ship worldwide via UPS and DHL, and we’re available 7 days a week to help.

📲 Call now: +44 (0)1228 540404
🧾 Or send us your machine make & model and we’ll call you back with a solution.

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