Product Description
Industrial Injection 412512 GM Rail Plug for 2001–2004 6.6L LB7 Duramax
The Industrial Injection 412512 GM Rail Plug is designed to maximize fuel rail pressure and improve fuel delivery on your 2001–2004 6.6L LB7 Duramax engine. This plug eliminates the pressure relief valve (PRV), ensuring consistent fuel pressure under high-performance tuning or racing conditions. Constructed from precision-machined, high-quality materials, this plug offers a reliable, leak-free seal for long-lasting durability.
Features:
- Direct fit for 2001–2004 GM 6.6L LB7 Duramax engines
- Eliminates factory pressure relief valve (PRV)
- Improves fuel rail consistency and injector performance
- Machined from premium-grade materials for durability
- Ideal for high-performance and race applications
Specifications:
| Manufacturer | Industrial Injection |
|---|---|
| Part Number | 412512 |
| Fitment | 2001–2004 6.6L GM Duramax LB7 |
| UPC | 840171216098 |
| Material | Machined Billet Steel |
| Finish | Raw or Polished |
| Install Time | Approx. 15 Minutes |
Fitment:
- 2001–2004 Chevrolet Silverado 2500HD / 3500 – 6.6L LB7 Duramax
- 2001–2004 GMC Sierra 2500HD / 3500 – 6.6L LB7 Duramax
Recommended Parts:
FAQ:
Q: Do I need custom tuning after installing this rail plug?
A: It’s recommended to have custom tuning for optimal performance if you are running modified injectors or turbo setups.
Q: Will this rail plug fit LLY or later Duramax engines?
A: No, this plug is specifically designed for the 2001–2004 LB7 Duramax only.
Q: Is this product street legal?
A: This part is intended for off-road or competition use only.
