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John Deere 300 Series Pencil Nozzle Fuel Injector | Stanadyne 28485 | New
John Deere 300 Series Pencil Nozzle Fuel Injector | Stanadyne 28485 | New
SKU: STA28485
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Estimated Delivery: September 11 to September 16
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New OEM Stanadyne pencil-type fuel injector (part number 28485) for John Deere 300 Series diesel engines. Directly replaces John Deere RE38087 and RE36939. This is the complete pencil injector assembly for the Stanadyne mechanical fuel system, restoring factory fuel delivery and spray pattern to OEM specification.
Key Features:
- Genuine Stanadyne pencil injector, part number 28485 (orange-tag calibration)
- Direct replacement for John Deere RE38087 and RE36939
- Fits John Deere 300 Series mechanical diesel engines (turbocharged configuration)
- Complete injector-and-nozzle assembly — installs directly into the injector bore, no separate holder needed
- Restores OEM-spec fuel atomization and sealing for reliable, in-spec operation
Specifications:
- Base part number: 28485 (Stanadyne)
- Component type: Pencil-type diesel fuel injector (injector + nozzle assembly)
- Condition: New — OEM (Stanadyne)
- Engine make: John Deere
- Engine family: 300 Series (turbocharged)
- Fuel system: Stanadyne mechanical injection
- John Deere OE references: RE38087, RE36939
Compatibility / Fitment:
- Fits John Deere 300 Series mechanical diesel engines running the Stanadyne pencil-injector fuel system, in the turbocharged configuration.
- Important gate: the 300 Series spans turbo and naturally-aspirated builds that use different injector calibrations — Stanadyne 28485 is the turbo-configuration injector, and 28484 covers the companion configuration.
- Because pencil injectors are calibration-specific, confirm your engine model, serial number, and OE injector number (RE38087 or RE36939) before ordering.
- These engines use one injector per cylinder — order to match your cylinder count (typically 4 or 6).
Conclusion:
The Stanadyne 28485 is a genuine OEM pencil fuel injector for John Deere 300 Series turbocharged diesel engines, replacing RE38087 and RE36939. Sold as a complete injector assembly, it restores factory-spec fuel delivery for dependable operation. Verify engine model, serial, and OE injector number to confirm exact fit.