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OE Quality
60-Day Returns
SKP SK904123 Fuel Injector Line - Return (Left)
Fuel Injector Line for GM HD Diesel Applications
The SKP SK904123 fuel injector line is built for direct replacement on select Chevrolet Silverado HD and GMC Sierra HD diesel applications. It is manufactured to meet or exceed OE specifications for fit, pressure handling, and dependable fuel delivery.
Use this SKP fuel injector line when you need a precise replacement for the return (left) side on compatible GM heavy-duty trucks. The SK904123 is made with durable materials to help resist cracking and leaking under high-pressure fuel system conditions.
Key Features
- Direct replacement fuel injector line for select GM HD trucks
- Built to meet or exceed OE specifications
- Durable construction for high-pressure fuel delivery
- Engineered for a proper fit and straightforward installation
- Helps maintain smooth, efficient engine operation
Detailed Description
SKP SK904123 is a fuel injector line for the return (left) position on select Chevrolet Silverado 2500 HD, Silverado 3500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Silverado 3500, and GMC Sierra 2500 HD, Sierra 3500 HD, Sierra 2500 HD Classic, and Sierra 3500 Classic models. This part is designed for accurate OE-style replacement where fuel line integrity is critical to consistent injector performance. This part cross-references Dorman OE Solutions 904-123 for the same application.
What It Helps Address
- Fuel leaks from a cracked or worn injector line
- Hard starting caused by poor fuel delivery
- Loss of engine performance from restricted fuel flow
- Pressure-related fuel system issues at the injector return line
- Fitment problems from a damaged or incorrect replacement line
Installation Notes and Tips
Fits 2004-2010 Chevrolet Silverado 2500 HD, Return (Left). Fits 2007-2010 Chevrolet Silverado 3500 HD, Return (Left). Fits 2007 Chevrolet Silverado 2500 HD Classic, Return (Left). Fits 2007 Chevrolet Silverado 3500 Classic, Return (Left). Fits 2004-2006 Chevrolet Silverado 3500, Return (Left). Fits 2004-2010 GMC Sierra 2500 HD, Return (Left). Fits 2007-2010 GMC Sierra 3500 HD, Return (Left). Fits 2007 GMC Sierra 2500 HD Classic, Return (Left). Fits 2007 GMC Sierra 3500 Classic, Return (Left). Fits 2004-2006 GMC Sierra 3500, Return (Left).
Confirm the return (left) routing and OE line shape before installation. Inspect adjoining fuel system components for wear, corrosion, or damage that could affect sealing and performance.
Quality Assurance
SKP manufactures this fuel injector line to meet or exceed OE specifications for material strength, fit, and fuel system reliability.
This part fits 32 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2009 | Chevrolet | Silverado 2500 HD | Automatic | 6.6L | V8 | Return (Left) | |
| 2009 | Chevrolet | Silverado 3500 HD | Automatic | 6.6L | V8 | Return (Left) | |
| 2009 | GMC | Sierra 2500 HD | Automatic | 6.6L | V8 | Return (Left) | |
| 2009 | GMC | Sierra 3500 HD | Automatic | 6.6L | V8 | Return (Left) | |
| 2008 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2008 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2008 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2008 | GMC | Sierra 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2007 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2007 | Chevrolet | Silverado 2500 HD Classic | Automatic | 6.6L | V8 | Return (Left) | |
| 2007 | Chevrolet | Silverado 3500 Classic | Automatic | 6.6L | V8 | Return (Left) | |
| 2007 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2007 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2007 | GMC | Sierra 2500 HD Classic | Automatic | 6.6L | V8 | Return (Left) | |
| 2007 | GMC | Sierra 3500 Classic | Automatic | 6.6L | V8 | Return (Left) | |
| 2007 | GMC | Sierra 3500 HD | 6.6L | V8 | Return (Left) | ||
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2006 | Chevrolet | Silverado 3500 | 6.6L | V8 | Return (Left) | ||
| 2006 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2006 | GMC | Sierra 3500 | 6.6L | V8 | Return (Left) | ||
| 2005 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2005 | Chevrolet | Silverado 3500 | 6.6L | V8 | Return (Left) | ||
| 2005 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2005 | GMC | Sierra 3500 | 6.6L | V8 | Return (Left) | ||
| 2004 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2004 | Chevrolet | Silverado 3500 | 6.6L | V8 | Return (Left) | ||
| 2004 | GMC | Sierra 2500 HD | 6.6L | V8 | Return (Left) | ||
| 2004 | GMC | Sierra 3500 | 6.6L | V8 | Return (Left) |
* 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.