5I7706 Nozzle Gp-Unit Injector

The 5I7706 Nozzle Gp-Unit Injector is a fuel injection nozzle assembly for Caterpillar excavators equipped with the 3066 engine. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed for use in the fuel injection system of the specified Caterpillar excavator models and model variants. The product name identifies the component as a nozzle group for a unit injector.

Fitment

• Caterpillar 311-A excavator
• Caterpillar 311B excavator
• Caterpillar 312-A excavator
• Caterpillar 312B excavator
• Caterpillar 312B L excavator
• Caterpillar 320 L excavator
• Caterpillar 320-A excavator
• Caterpillar 320-A L excavator
• Caterpillar 320-A N excavator
• Caterpillar 320B excavator
• Caterpillar 320B FM LL excavator
• Caterpillar 320B L excavator
• Caterpillar 320B LL excavator
• Caterpillar 320B LU excavator
• Caterpillar 320B N excavator
• Caterpillar 320B U excavator
• Caterpillar 321B excavator

The supplied application information also identifies the following Caterpillar model designations: 311, 311B, 312, 312B, 320, 320 L, 320B, 320B FM LL, 320B L, 320B U, 320N and 321B. Model suffixes and letter combinations should be checked against the machine identification plate and the installed engine before ordering or fitting the component.

Cross-reference numbers

• 5I7706
• 5I-7706

Both number formats refer to the part number provided for this nozzle group: 5I7706 without a hyphen and 5I-7706 with a hyphen. No additional supplier or equipment-manufacturer reference numbers are specified in the available product data.

Specifications