Description
The PAI Industries 209981X is a remanufactured Celect-style unit fuel injector for Cummins L10, M11, and ISM diesel engines. It replaces Cummins part number 3411756 (also crossed to Cummins 3083849) and is supplied on an exchange basis — a core charge applies and is refunded when your rebuildable core is returned. Each PAI reman injector is built in an ISO-certified process and tested to meet or exceed OEM specifications.
Symptoms of a Failing Fuel Injector
- Rough idle or cylinder misfire, especially at low RPM
- White or black exhaust smoke under load
- Fuel knock or diesel “nailing” sound from one cylinder
- Low power and sluggish throttle response
- Increased fuel consumption
- Fuel dilution of the engine oil in severe cases
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 209981X |
| Product Type | Remanufactured Fuel Injector Assembly (exchange) |
| Fuel System | Cummins Celect electronic unit injector |
| OEM Reference | Cummins 3411756 |
| Core Return | Core charge applies — refunded on return of an acceptable core |
| Weight | 3.90 lb (shipping) |
Cross References
| Manufacturer | Part Number |
|---|---|
| PAI Industries | 209981X |
| Cummins | 3411756 |
| Cummins | 3083849 |
| Cummins (reman/exchange) | 3411756PX, 3411756RX |
| Delphi (reman) | EX631756 |
| Interstate-McBee (reman) | R-3411756 |
Applications
- Cummins L10 (Celect-equipped engines)
- Cummins M11 (Celect / Celect Plus-equipped engines)
- Cummins ISM
Verify part number and engine application before ordering to confirm fitment. Celect injectors are CPL-specific — confirm against your engine’s CPL or serial number.
