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Delphi EX631050 Fuel Injection Pump
| Brand | Delphi EX631050 |
|---|---|
| Connector Gender | Female |
| Electrical | No |
| Electrical Connector Quantity | 1 |
| Fuel Type | Diesel |
| Gasket Or Seal Included | Yes |
| Head Drive Type | No |
| Housing Material | Metal |
| In Tank or External | External |
| Mounting Hardware Included | No |
| Package Contents | Fuel lnjection Pump, Seal, Instruction Sheet |
| Port Quantity | 2 |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Wiring Harness Included | No |
| Fits | Chevrolet and GMC · 20 vehicles |
OE heritage built in. Backed by a century of OE experience and knowledge.
Metal housing. Durable construction for dependable fuel system service.
External fuel injection pump. Built for diesel fuel delivery with a seal included.
Cross-references FEL-PRO 35525, Standard Ignition IP22 and 2H101 for the same application. See all 13.
Delphi EX631050 Fuel Injection Pump Overview
The Delphi EX631050 fuel injection pump is an external diesel pump built with OE heritage from a brand that has supplied top automakers for decades. It is a direct-fit style replacement for select Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 diesel applications from 2001-2005.
With a metal housing, one electrical connector, and a blade terminal design, this Delphi fuel injection pump is built for diesel fuel delivery systems that require reliable external pump operation. The included seal and instruction sheet support a cleaner service process for the EX631050 installation.
Key Features
- Delphi EX631050 fuel injection pump for diesel applications
- External mounting design
- Metal housing for durable construction
- Female connector with 1 electrical connector and 2 terminals
- Blade terminal type with male terminal gender
- Gasket or seal included
- Package contents: fuel injection pump, seal, instruction sheet
Detailed Product Description
Delphi builds the EX631050 using OE experience and application knowledge developed through long-term supplier relationships with major automakers. This fuel injection pump is intended for diesel fuel systems and uses an external configuration with two ports, a female connector, and blade-style terminals for the specified vehicle platforms. The EX631050 part number is commonly searched by buyers looking for a diesel fuel injection pump for 2001-2005 Chevrolet Silverado 2500 HD and Silverado 3500, as well as 2001-2005 GMC Sierra 2500 HD and Sierra 3500 models.
This part cross-references Standard Ignition IP22 for the same application.
Vehicle Fitment
- Fits 2001-2005 Chevrolet Silverado 2500 HD, N/A
- Fits 2001-2005 Chevrolet Silverado 3500, N/A
- Fits 2001-2005 GMC Sierra 2500 HD, N/A
- Fits 2001-2005 GMC Sierra 3500, N/A
Common Replacement Reasons
- Hard starting or extended crank on a diesel engine
- Fuel delivery loss from a worn external injection pump
- Low fuel pressure affecting engine performance
- Rough running caused by inconsistent diesel fuel supply
- Service replacement for a failed Delphi EX631050 pump
Installation Notes and Tips
Confirm diesel fuel system compatibility before installation and match the connector, terminal, and port layout to the original unit. Inspect the sealing surface carefully, replace any damaged lines or connectors, and follow the included instruction sheet during service. Verify fitment by year, make, and model before ordering the EX631050.
Quality Assurance
Delphi draws on OE heritage and supplier experience built over 100 years, with aftermarket parts informed by original equipment knowledge and manufacturing standards.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | — |
| 2005 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | — |
| 2005 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | — |
| 2005 | GMC | Sierra 3500 | 6.6L | V8 | N/A | — |
| 2004 | Chevrolet | Silverado 2500 HD | — | — | N/A | — |
| 2004 | Chevrolet | Silverado 3500 | — | — | N/A | — |
| 2004 | GMC | Sierra 2500 HD | — | — | N/A | — |
| 2004 | GMC | Sierra 3500 | — | — | N/A | — |
| 2003 | Chevrolet | Silverado 2500 HD | — | — | N/A | — |
| 2003 | Chevrolet | Silverado 3500 | — | — | N/A | — |
| 2003 | GMC | Sierra 2500 HD | — | — | N/A | — |
| 2003 | GMC | Sierra 3500 | — | — | N/A | — |
| 2002 | Chevrolet | Silverado 2500 HD | — | — | N/A | — |
| 2002 | Chevrolet | Silverado 3500 | — | — | N/A | — |
| 2002 | GMC | Sierra 2500 HD | — | — | N/A | — |
| 2002 | GMC | Sierra 3500 | — | — | N/A | — |
| 2001 | Chevrolet | Silverado 2500 HD | — | — | N/A | — |
| 2001 | Chevrolet | Silverado 3500 | — | — | N/A | — |
| 2001 | GMC | Sierra 2500 HD | — | — | N/A | — |
| 2001 | GMC | Sierra 3500 | — | — | N/A | — |
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