Description
The PAI Industries 209958X is a remanufactured XPI fuel injector assembly for Cummins ISX15 and QSX15 (EPA13) diesel engines, replacing Cummins 2897320RX, 5579419, 4384363, and related variants. PAI Industries is an ISO 9001-certified U.S. manufacturer supplying OEM-quality heavy-duty parts since 1973. The injector ships with its fuel connector tube. This is a reman exchange part — a refundable core charge applies and is credited when your rebuildable core is returned.
Symptoms of a Failing Fuel Injector
- Hard starting or extended cranking, especially cold
- Rough idle, misfires, or noticeable cylinder knock
- White or black exhaust smoke from poor atomization or over-fueling
- Loss of power and worsening fuel economy
- Fuel dilution of the engine oil (rising oil level, fuel smell)
- Cylinder balance / contribution fault codes during diagnostics
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 209958X |
| Part Type | Fuel injector assembly |
| Fuel System | Cummins XPI common rail |
| Condition | Remanufactured |
| Engine Family | Cummins ISX15 / QSX15 (EPA13) |
| Includes | Fuel connector tube |
| Core Return Required | Yes — refundable core charge, credited on return of a rebuildable core |
Cross References
| Cummins | 2897320 |
|---|---|
| Cummins | 2897320NX |
| Cummins | 2897320PX |
| Cummins | 2897320RX |
| Cummins | 4384363 |
| Cummins | 4384363PX |
| Cummins | 4384363RX |
| Cummins | 5579419 |
| Cummins | 5579419PX |
| Interstate-McBee | R-2897320 |
Applications
- Cummins ISX15 diesel engines (EPA13 emissions level)
- Cummins QSX15 diesel engines (EPA13 emissions level)
- Heavy-duty on-highway, vocational, and fleet applications
Verify part number and engine application before ordering to confirm fitment. Confirm against your engine serial number or CPL, and replace all seals, O-rings, and washers at installation.
