Description
The PAI Industries 209998EX is a remanufactured exchange fuel injector for Cummins ISX 15.0L engines with the HPI (High Pressure Injection) dual-overhead-cam unit-injector fuel system, covering CM870 and CM871 (EPA07) ECM applications on CPLs 1437, 2732, 3229, and 3459. It replaces Cummins injector 4954434 (also serviced as 4954434R, 4954434RX, and 4954434PX). Every injector is fully remanufactured and bench-tested for flow, pressure, and response to restore OEM fuel delivery. This is an exchange part — a refundable core charge applies.
Symptoms of a Failing Fuel Injector
- Rough idle or persistent misfire on one or more cylinders
- White smoke at idle or excessive black smoke under load
- Low power, sluggish throttle response, and poor fuel economy
- Diesel knock or audible fuel knock at idle
- Hard starting, especially cold
- Failed cylinder cutout test or injector fault codes
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 209998EX |
| Part Type | Fuel Injector Assembly (Remanufactured Exchange) |
| Fuel System | Cummins HPI (High Pressure Injection) unit injector |
| Engine Application | Cummins ISX 15.0L, CM870 / CM871 (EPA07) |
| CPLs | 1437, 2732, 3229, 3459 |
| OEM Reference | Cummins 4954434 |
| Core Charge | Yes — refundable core charge applies (reman exchange program) |
Cross References
| Manufacturer | Part Number |
|---|---|
| Cummins | 4954434, 4954434R, 4954434RX, 4954434PX |
| Delphi (reman exchange) | EX634434 |
| Interstate-McBee (reman) | R-4954434 |
| PAI Industries | 209998X (standard reman line) |
Applications
- Cummins ISX 15.0L HPI (dual overhead cam) on-highway engines, CM870 and CM871 EPA07 ECMs — approx. 2002–2009 Peterbilt, Kenworth, Western Star, Freightliner, and International trucks with ISX power
- Fits CPLs 1437, 2732, 3229, 3459 (verify by engine serial number)
Verify part number and engine application before ordering to confirm fitment. HPI injectors are CPL-specific — confirm against your engine serial number before purchase.
