Cummins 6.7L Injector Nozzle | Bosch 0433172150 | DLLA145P2150

New genuine Bosch diesel injector nozzle (part number 0433172150, designation DLLA145P2150) for Bosch common-rail injector 0445120177, used on Cummins QSB 4.5L, QSB 6.7L, and ISB 6.7L engines. This is the injector nozzle — the spray tip that installs inside the injector — not a complete injector assembly. It restores OE-spec fuel atomization and spray pattern.

Key Features:

• Genuine Bosch injector nozzle, Bosch number 0433172150 (designation DLLA145P2150)
• Multi-hole DLLA-type nozzle with a 145° spray angle
• Serves Bosch common-rail injector 0445120177
• Fits Cummins QSB 4.5L, QSB 6.7L, and ISB 6.7L applications
• Replacement nozzle tip — restores factory fuel atomization, not a power-adder

Specifications:

• Base part number: 0433172150 (Bosch)
• Nozzle designation: DLLA145P2150
• Component type: Common-rail injector nozzle (spray tip) — not a complete injector
• Spray angle: 145°
• Condition: New (genuine Bosch)
• Engine make: Cummins
• Engine models: QSB 4.5L, QSB 6.7L, ISB 6.7L
• Compatible injector: Bosch 0445120177

Compatibility / Fitment:

• For Bosch common-rail injector 0445120177 (Cummins QSB 4.5L / 6.7L, ISB 6.7L)
• This is the injector nozzle (spray tip) only — not the complete injector assembly
• Confirm your complete injector part number is 0445120177 before ordering
• Commonly associated with Cummins injector 5254261 (and its exchange versions) — verify against your injector
• One nozzle per cylinder; a 6-cylinder 6.7L uses six
• Nozzle replacement requires proper injector disassembly and calibration — intended for qualified diesel injection service

Conclusion:

The Bosch 0433172150 (DLLA145P2150) is a new genuine Bosch injector nozzle for common-rail injector 0445120177, used on Cummins QSB 4.5L/6.7L and ISB 6.7L engines. It is the nozzle spray tip, not a complete injector, and restores OE-spec atomization. Confirm your injector number (0445120177) before ordering.