Description
The PAI Industries 480257X is a remanufactured HEUI fuel injector for 2000–2003 International DT530E and HT530 8.7L diesel engines in the 250–340 hp ratings (Alliant Power “BN” code family). It replaces Navistar 2593597C92 and the related 1830692/1830694-series injector numbers, restoring hydraulic actuation, spray pattern, and cylinder balance on International 4000/8000-series trucks and buses powered by the 530 engine. This is a remanufactured exchange part — a refundable core charge applies.
Symptoms of a Failing HEUI Injector
- Hard starting or long cranking, especially cold
- Rough idle, stumble, or dead-cylinder miss
- White smoke at idle that clears as the engine warms
- Low power and poor throttle response under load
- Fuel dilution of the engine oil
- Injector-related fault codes / failed cylinder contribution test
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 480257X |
| Product Type | Fuel Injector Assembly (Remanufactured Exchange) |
| Injector Type | HEUI (hydraulically actuated electronic unit injector) |
| Engine Application | International DT530E / HT530 8.7L, 250–340 hp, 2000–2003 (verify by engine serial number) |
| OEM Reference | Navistar 2593597C92 |
| Core Charge | Core charge applies — refundable on return of an acceptable core |
Cross References
| Navistar / International | 2593597C92, 2593597C91, 1830691C1, 1830692C91, 1830692C92, 1830693C1, 1830693C3, 1830694C91, 1830694C92, 1830694C93 |
|---|---|
| PAI Industries | 480257X |
| Alliant Power | AP63813BN |
Applications
- International DT530E 8.7L HEUI, 250–340 hp ratings, 2000–2003
- International HT530 8.7L HEUI (high-torque), 2000–2003
Verify part number and engine application — HEUI injectors are rating- and serial-number-specific. Confirm by engine serial number before ordering.
