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.
❌ 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.