Hydraulic unit injectors: powerful and precise fuel injection

With a hydraulic unit injector, the build-up of fuel pressure is provided by hydraulic pressure and not with a camshaft as with the mechanical unit injector. This allows for more installation freedom. In fact, there is no need to have a camshaft nearby. These units are also called HEUI. Hydraulic Electronic Unit Injector and are mainly used in the industrial and truck sector. There is quite a range of HEUI types, with Diesel Büchli having access to the stock of good suppliers in addition to its own stock.

Possible causes failure of hydraulic unit injectors:

  • External contamination
  • Short circuit in the coil
  • Electrical control disrupted
  • Thermal overload
  • Normal wear and aging
  • Lubricating properties of the fuel deficient

Total 29 products in group hydraulic unit injectors

New PPT G2.9 Injector AP66821
Alliant Power
New PPT G2.9 Injector AP66855
Alliant Power
New PPT G2.9 Injector AP66857
Alliant Power
New PPT G2.9 Injector AP66858
Alliant Power
New PPT G2.9 Injector AP66876
Alliant Power
New PPT G2.9 Injector AP66877
Alliant Power
New PPT G2.9 Injector AP66878
Alliant Power
New PPT G2.9 Injector AP66879
Alliant Power

To ensure proper operation, it is very important to carefully follow the manufacturer’s installation instructions. Clean work is an absolute necessity in this respect. Naturally, any cause of injector failure must be eliminated prior to installation.