The Bosch diesel injectors with part numbers 0445120383 and 5317323 are used in Cummins QSB7 engines, which are commonly found in industrial, marine, and heavy equipment applications.

Engine Application: Cummins QSB7 (6.7L) diesel engines.

Injector Type: Common rail fuel injector (CRI or CRIN).

Usage: Industrial, marine, generator sets, and construction equipment.

Below are some of the specific machine models where these injectors are frequently found:

• Bobcat:

• T650, T750, T770 (Compact Track Loaders)

• S650, S750 (Skid Steer Loaders) (some with Cummins QSB7)

• Case:

• SV300, SV250 (Skid Steers)

• JCB:

• JCB 220X, 260T (Loadalls & Telehandlers) (some models with QSB7)

2. Marine Applications

• Cummins Marine QSB7 engines used in:

• Workboats, fishing vessels, small ferries

• Yachts & pleasure craft (with marine-rated QSB7)

• Commercial tugs & patrol boats

3. Generator Sets (Gensets)

Cummins QSB7-powered generators (50-200 kW range)

Used in industrial backup power, mining, hospitals, and data centers

4. Agricultural & Forestry Equipment

John Deere (some models with Cummins QSB7)

New Holland (certain harvesters & tractors)

TimberPro (forestry equipment with QSB7 engines)

5. Truck & Bus Applications (Less Common, but Possible)

Some older school buses (Blue Bird, IC Bus) with Cummins QSB7

Medium-duty trucks (rare, as most use ISB engines instead)