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Detroit Diesel 8.2L (Fuel Injector â Part #5226280)
Key Information
Part Number: 4C59, 5226280, 5226880R, R-5226280, R5226280
Engine Make: Detroit
Inspection Report: Yes
Warranty: 12 Months
Supply Ability: In stock
Payment Way: Paypal, Western Union, Visa, Mastercard, T/T
Details: One model in a neutral box or specific box required by clients.
Detroit Diesel 8.2L (Fuel Injector – Part #5226280)
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Engine Model: Detroit Diesel 8.2L (also known as the “Fuel Pincher”).
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Application: Used in medium-duty trucks, buses, and industrial equipment.
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Injector Type: Mechanical unit injector (MUI).
The Detroit Diesel 8.2L (Fuel Pincher) injector (Part #5226280) is a mechanical unit injector (MUI) designed for the 8.2L Detroit Diesel engine. Below are its key application scenarios and advantages:
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Engine Application Scenarios
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The 8.2L Detroit Diesel engine (and its injectors) was commonly used in:
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Medium-Duty Trucks
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Freightliner, GMC, and Chevrolet trucks (e.g., school buses, delivery trucks).
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Popular in 1980s–1990s models like the GM TopKick & Kodiak.
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Industrial & Agricultural Equipment
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Generators, pumps, and construction machinery.
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Used in forklifts, tractors, and other heavy-duty mobile equipment.
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Marine Applications
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Some marine propulsion and auxiliary power units (APUs).
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Military & Government Vehicles
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Found in older military trucks and support vehicles.
Advantages of the 8.2L Detroit Diesel Injector (5226280)
Fuel Efficiency (“Fuel Pincher” Design)
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Optimized for better fuel economy compared to older Detroit Diesel models.
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Mechanical injectors are simple and reliable when properly maintained.
Durability
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Built to withstand high-mileage use in commercial trucks.
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Less electronics = fewer failure points than modern electronic injectors.
Ease of Maintenance
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Mechanical injectors are easier to rebuild than modern high-pressure common rail (HPCR) injectors.
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No complex electronics or sensors to fail.
Cost-Effective Repairs
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Rebuild kits are available, extending injector life.
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Aftermarket options keep replacement costs lower than newer diesel engines.
Compatibility
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Works across multiple 8.2L Detroit Diesel variants (natural aspirated and turbocharged).
Best For:
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Owners of older Detroit Diesel 8.2L engines looking for affordable, mechanical fuel injection without modern emissions complexity.
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Fleet operators needing simple, repairable injectors for medium-duty applications.
Here's a summarized technical parameters table for the Detroit Diesel 8.2L Fuel Injector (Part #5226280):
| Parameter | Specification |
|---|---|
| Engine Model | Detroit Diesel 8.2L ("Fuel Pincher") |
| Injector Type | Mechanical Unit Injector (MUI) |
| OEM Part Number | 5226280 |
| Fuel System | Direct Injection |
| Operating Pressure | ~3,000–4,000 psi (mechanical injection) |
| Nozzle Type | Multi-hole (exact hole count varies by rebuild spec) |
| Compatibility | 8.2L Detroit Diesel (NA & Turbo models) |
| Applications | Medium-duty trucks, industrial equipment, marine, generators |
| Flow Rate | Varies by calibration (typically ~200–250 mm³/stroke at rated RPM) |
| Torque Specs | 35–45 lb-ft (follow Detroit Diesel service manual) |
| Common Issues | Nozzle wear, clogging, fuel leaks, improper spray pattern |
| Rebuildable | Yes (nozzles & internal components replaceable) |
