The Cummins ISC 8.3L diesel engine (using fuel injector 445120272 or its equivalents) was widely used in medium-duty and heavy-duty applications across multiple industries. Here are some of the most common machines and vehicles equipped with this engine and injector:

1. On-Highway Trucks & Buses

• Freightliner Business Class M2 (2000s models)

• International 4000 Series (Early 2000s models)

• Thomas Built Buses (Saf-T-Liner HDX, FS-65, etc.)

• Blue Bird Vision & All American FE (School buses)

• Gillig Low Floor & Phantom Buses

• Peterbilt 330 & Kenworth T300 (Medium-duty trucks)

• 2. Vocational & Off-Highway Equipment

• Construction Equipment:

• Terex Advance Mixer Trucks (Concrete pumpers)

• Sany & Schwing Concrete Pumps (Some models)

• Fire & Emergency Vehicles:

• Pierce Fire Trucks (Pumper, Rescue, etc.)

• Spartan ERV & E-ONE

• Refuse & Utility Trucks:

• Mack LR (some models)

• Autocar DC & ACMD (Refuse haulers)

3. Industrial & Agricultural Applications

• Generator Sets (200-300 kW range)

• Agricultural Machinery (Older combines, tractors with Cummins swaps)

• Marine Auxiliary Engines (Some repowered boats)

The Cummins ISC 8.3L fuel injector (Part #445120272 or equivalent) is a critical component in ensuring optimal engine performance, fuel efficiency, and emissions control. Below are its key characteristics and advantages:

1. Key Characteristics

✅ Precision Engineering — Uses Bosch-style unit injector technology, delivering high-pressure fuel directly into the combustion chamber for efficient atomization.

✅ High-Pressure Performance — Operates at up to ~23,000 PSI (1,600 bar), ensuring complete fuel burn and reduced soot.

✅ Durable Construction — Made from hardened steel and precision-machined components to withstand high temperatures and pressures.

✅ Electronic Control Compatibility — Works with Cummins’ ECM (Electronic Control Module) for precise timing and fuel metering.

✅ Self-Lubricating Design — Minimizes wear over long service intervals.

2. Advantages of This Injector

✔ Improved Fuel Efficiency

• Optimized spray pattern ensures complete combustion, reducing wasted fuel.

• Helps maintain optimal fuel economy in heavy-duty applications.

✔ Enhanced Engine Performance

• Delivers consistent fuel flow, preventing power loss or misfires.

• Supports smooth idle and strong acceleration in trucks and buses.

✔ Lower Emissions Compliance

• Reduces particulate matter (PM) and NOx emissions by improving burn efficiency.

• Helps meet EPA 2004 and similar standards (depending on calibration).

✔ Long Service Life

• Robust design resists carbon buildup and coking.

• Proper maintenance can last 300,000+ miles before needing replacement.

✔ Cost-Effective Maintenance

• Remanufactured options are widely available, saving money vs. new OEM.

• Core exchange programs reduce upfront costs.

OEM Cross Reference:

0-445-120-035, 0-445-120-112, 0-445-120-272, 0-986-435-532, 0-986-435-532R, 0-986-435-532RX, 0445120035, 0445120112, 0445120272, 0986435532, 0986435532R, 0986435532RX, 199211D, 209995, 209995X, 241-130-0010, 2411300010, 365720, 3965720, 3973059, 3973059NX, 445120272, 4940439, 4940439NX, 4940439RX, 5263305, 5263305NX, 5263305PX, 5263305RX, 6745113102, 6745123100, 83-02325-070, 8302325070, 84-01379-070, 8401379070, 87581565, 87581565R, 96-01379-070, 9601379070, 986435532, RBE0445120112