Description
The PAI Industries 209998X is a remanufactured HPI (high-pressure injection) fuel injector for Cummins ISX15 and QSX15 15.0L dual-overhead-cam diesel engines, most commonly EPA07 (CM871) applications. It replaces Cummins part number 4954434 and the Cummins exchange numbers 4954434PX / 4954434RX. Supplied on an exchange basis — a core charge applies and is refunded when your rebuildable core is returned.
Symptoms of a Failing HPI Fuel Injector
- Rough idle or persistent single-cylinder miss
- White smoke at idle, black smoke under load
- Fuel knock and erratic engine operation
- Low power and poor fuel mileage
- Hard starting or long crank times
- Fuel dilution of the engine oil in severe cases
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 209998X |
| Product Type | Remanufactured Fuel Injector Assembly (exchange) |
| Fuel System | Cummins HPI (dual overhead cam ISX/QSX) |
| OEM Reference | Cummins 4954434 |
| Common CPLs | 2732, 3229, 10259 (verify against your engine) |
| Core Return | Core charge applies — refunded on return of an acceptable core |
| Weight | 3.08 lb (shipping) |
Cross References
| Manufacturer | Part Number |
|---|---|
| PAI Industries | 209998X |
| Cummins | 4954434 |
| Cummins (reman/exchange) | 4954434PX, 4954434RX |
| Delphi (reman) | EX634434 |
| Interstate-McBee (reman) | R-4954434 |
Applications
- Cummins ISX15 15.0L, dual overhead cam / HPI fuel system (EPA07, CM871)
- Cummins QSX15 15.0L industrial (HPI)
Verify part number and engine application before ordering to confirm fitment. HPI injectors are CPL-specific — confirm against your engine’s CPL or serial number. Not for common-rail (CM2250/CM2350) ISX15 engines.
