Isuzu DEF Delete – 4HK, 4JJ1 & 6HK1 Engine Solutions

Isuzu Engines • DEF Delete

Isuzu DEF Delete Solutions for 4HK, 4JJ1 & 6HK1 Engines

Plug-and-play DEF/SCR emulators that fix AdBlue faults, prevent derate, and keep your Isuzu-powered heavy equipment working — tested on Hitachi, CASE, Link-Belt & more.

Fast Install
No ECU tuning required
High-Fault Clearing
NOx, pump, tank, sensors
250/500 kbps
CAN auto-compatible
Global Shipping
USA • Canada • UK • EU

Isuzu 4HK DEF Delete

Common on mid-size excavators & loaders (e.g., Hitachi ZX130, CASE CX130D).

  • Fixes NOx sensor & SCR efficiency faults
  • Bypasses DEF pump/injector issues
  • Prevents limp mode; restores full power

Isuzu 4JJ1 DEF Delete

Widely used across compact & industrial equipment.

  • Clears tank level/heater errors
  • Eliminates recurring SCR faults
  • Simple plug-in on DEF/SCR CAN line

Isuzu 6HK1 DEF Delete

Heavy-duty power for larger excavators & dozers (ZX350, CX350D, 350X4).

  • Resolves multiple NOx timeout codes
  • Removes NH3/quality sensor issues
  • Supports 250/500 kbps CAN networks

Why Choose BlueRemoval for Isuzu DEF Delete?

With 15+ years in emissions emulation, our hardware fixes the weak points of DEF/SCR systems without ECU remapping. It’s the fastest route back to uptime.

Proven on Hitachi, CASE & Link-Belt
Validated across real job-site machines, worldwide.
No Cutting Looms
Clean install on power/ground + DEF/SCR CAN harness; OEM connectors where available.
High-Fault Clearing
Addresses NOx, pump, tank, heater and SCR efficiency faults.
Dedicated Support
Technical help for install & commissioning in USA, Canada, UK & EU time zones.

👉 Contact Us Today

Tell us your machine make/model and engine code (4HK / 4JJ1 / 6HK1). We’ll confirm compatibility and ship your emulator.

Get a Quote

⚠️ Legal notice: Sold for off-road, agricultural, industrial and export-only applications. The buyer is responsible for compliance with local regulations.

Related Pages

Support & Guidance

FAQs – Isuzu DEF Delete

Which Isuzu engines and machines are supported?
We support Isuzu 4HK, 4JJ1, and 6HK1 engines commonly found in Hitachi (e.g., ZX130, ZX350), CASE (e.g., CX130D, CX350D), and Link-Belt (e.g., 210X4, 350X4) machines. Contact us with make, model, and engine code to confirm compatibility.
Where does the Isuzu emulator connect?
Power/ground plus the DEF/SCR CAN harness. Many kits use a factory connector for a clean, reversible install; harness details are provided with your kit.
Does it support both 250 kbps and 500 kbps CAN on Isuzu systems?
Yes — the emulator works with both 250 kbps and 500 kbps CAN networks used on Isuzu-powered equipment.
What are signs the emulator is working on an Isuzu engine?
DEF/NOx-related fault codes stop returning after an ignition cycle or one-time clear, torque derate is removed, and the machine holds full power under load. We include quick checks to confirm operation during install.
Do I need ECU remapping on Isuzu engines?
No — this is a plug-and-play hardware solution; no ECU remap or laptop tuning is required.
Is the installation reversible?
Yes. When installed via our harness or OEM connectors, you can revert by unplugging the emulator and reconnecting original components.
Intended use for Isuzu DEF delete emulators
Sold for off-road, agricultural, industrial and export-only equipment applications. The buyer is responsible for compliance with local regulations.
⚠️ Notice: Our emulators are intended for off-road, agricultural, industrial, and export-only applications. The buyer is responsible for local compliance.