Description
The PAI Industries 390087X is a remanufactured fuel injector for Caterpillar C13 ACERT diesel engines (also listed by suppliers for related C11 applications). It replaces Caterpillar OEM numbers 249-0708, 10R2977, 10R1274, 232-1198, 239-4908, and 249-2372. As an exchange (X) unit, a refundable core charge applies — return your old injector core for credit.
Symptoms of a Failing C13 Injector
- Rough running, misfire, or low power under load
- Hard starting and excessive cranking
- White or black exhaust smoke
- Fuel knock and poor fuel economy
- Cylinder cutout test isolating a weak cylinder
- Injector-related fault codes on Cat ET diagnostics
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 390087X |
| Product Type | Remanufactured Fuel Injector Assembly (exchange) |
| Engine Application | Caterpillar C13 ACERT (supplier listings also cover C11) |
| Condition | Remanufactured — core charge applies, refundable on return of an acceptable core |
Cross References
| PAI | 390087X |
|---|---|
| Caterpillar | 249-0708 / 2490708 |
| Caterpillar | 10R2977, 10R2977R, R10R2977 |
| Caterpillar | 10R1274, 10R1274R |
| Caterpillar | 232-1198 / 2321198 |
| Caterpillar | 239-4908 / 2394908 |
| Caterpillar | 249-2372 / 2492372 |
| Interstate-McBee | R-10R2977 |
| AMBAC | EX632977 |
Applications
- Caterpillar C13 ACERT on-highway diesel engines (commonly 2004–2007 truck applications per supplier listings)
- Caterpillar C11 applications listed by some suppliers for the 10R2977 / 249-0708 injector family
Verify part number and engine application before ordering to confirm fitment. Cat C13 injectors vary by engine serial number prefix — confirm against your engine serial number.
