Description
The PAI Industries 390073EX is a remanufactured (exchange) fuel injector assembly for Caterpillar C15 and C18 diesel engines. It replaces Caterpillar injector 253-0618 and the Cat Reman exchange number 10R-2772 — an injector group Caterpillar also applies to C32 gen-set, industrial, and marine engines. Remanufactured to restore OEM flow and spray-pattern performance, it is a cost-effective alternative to a dealer reman injector. A core charge applies and is refunded when your rebuildable core is returned.
Symptoms of a Failing Fuel Injector
- Rough idle or cylinder misfire under light load
- Noticeable loss of power and slow throttle response
- White or black exhaust smoke
- Fuel knock or louder-than-normal combustion noise
- Increased fuel consumption
- Hard starting or long crank times
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 390073EX |
| Product Type | Fuel Injector Assembly (Remanufactured / Exchange) |
| OEM Reference | Caterpillar 253-0618 (10R-2772) |
| Engine Application | Caterpillar C15, C18 diesel engines |
| Core Charge | Core charge applies — refundable on return of a rebuildable core |
Cross References
- Caterpillar 253-0618 / 2530618
- Caterpillar 10R-2772 / 10R2772R (Cat Reman)
- PAI 390073EX / 390073X
Applications
- Caterpillar C15 diesel engines
- Caterpillar C18 diesel engines (on-highway, industrial, and machine applications)
- Caterpillar lists the 253-0618 injector group on C32 gen-set, industrial, and marine engines as well — confirm by engine serial number
Verify part number and engine application before ordering to confirm fitment. Confirm against your Cat engine serial number and install with new O-rings and seals following Caterpillar torque and trim-code procedures.
