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Delphi EX631046 Fuel Injector
Delphi EX631046 Diesel Fuel Injector Overview
The Delphi EX631046 fuel injector is designed specifically for light-duty diesel applications in Chevrolet and GMC trucks. Engineered as a remanufactured replacement part, it ensures reliable fuel delivery for models like the Silverado 2500 HD and Sierra 3500.
- Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500
- Fuel type: Diesel
- Terminal type: Blade with 2 terminals
- Connector shape: Oval, female gender
- Includes 1 O-ring and gasket/seal for proper sealing
- Body constructed from durable metal and plastic materials
- Attachment method: Clamp with bolt (mounting hardware not included)
- Standard replacement grade, remanufactured unit
- Package includes fuel injector and instruction sheet
Technical Details and Features
The Delphi EX631046 fuel injector is built to meet the specific requirements of light-duty diesel fuel injection systems. Its metal and plastic body construction balances durability and corrosion resistance. The injector features a blade-type terminal with two connections and an oval-shaped female connector, ensuring secure electrical connectivity. A single O-ring and gasket/seal are included to maintain a tight seal and prevent fuel leaks. The injector attaches using a clamp with a bolt, though mounting hardware is not provided. This remanufactured injector is a standard replacement part, designed to restore proper fuel delivery performance in compatible Chevrolet and GMC diesel trucks.
Compatible Vehicles and Applications
This fuel injector is compatible with the following vehicles:
- Chevrolet Silverado 2500 HD
- Chevrolet Silverado 3500
- GMC Sierra 2500 HD
- GMC Sierra 3500
It is intended for use in light-duty diesel fuel injection systems, making it suitable for maintaining or restoring fuel efficiency and engine performance in these heavy-duty truck models.
Common Issues Addressed by the Delphi EX631046
- Irregular engine idling or misfires due to faulty fuel injection
- Reduced fuel efficiency from injector leaks or blockages
- Hard starting or poor acceleration in diesel engines
- Excessive exhaust smoke caused by improper fuel atomization
- Engine performance loss related to injector wear or damage
Installation Notes and Tips
When installing the Delphi EX631046 fuel injector, ensure the following:
- Verify compatibility with your Chevrolet or GMC diesel truck model before installation
- Use the included gasket/seal and O-ring to prevent fuel leaks
- Secure the injector using the clamp with bolt attachment method; note that mounting hardware is not included
- Follow the instruction sheet carefully for proper installation procedures
- Inspect electrical connectors for corrosion or damage before connecting
Quality Assurance and Warranty
The Delphi EX631046 is a remanufactured fuel injector meeting standard replacement grade specifications. Each unit undergoes rigorous testing to ensure functionality and reliability in diesel fuel injection systems. While specific warranty details may vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your replacement part.
| Brand | National |
|---|---|
| Part Number | JLM704610 |
| Cup Bore (Inch) | 3.3071 |
| Cup Bore (MM) | 84.0000 |
| Cup Length (Inch) | 0.6890 |
| Cup Length (MM) | 17.5010 |
| Cup Radius (Inch) | 0.0600 |
| Cup Radius (MM) | 1.5240 |
| Part Description | Taper Bearing Cup |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Fuel Type | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Chevrolet | Silverado 2500 HD | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2005 | Chevrolet | Silverado 3500 | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2005 | GMC | Sierra 2500 HD | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2005 | GMC | Sierra 3500 | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2004 | Chevrolet | Silverado 2500 HD | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2004 | Chevrolet | Silverado 3500 | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2004 | GMC | Sierra 2500 HD | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
| 2004 | GMC | Sierra 3500 | DIESEL | N/A | Replaces OE Part Number(s) 97303657; RPO Code LLY |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.