Product Description
S&S Diesel LLY-10SAC-R-SET TorqueMaster Injector (Reman) — 2004.5–2005 GM Duramax 6.6L LLY
Give your LLY a proven, stock-plus injector upgrade. The S&S Diesel LLY-10SAC-R-SET TorqueMaster set features SAC10 nozzles and meticulous flow matching for smooth drivability, crisp throttle response, and OE-level refinement with added headroom.
- Balanced & matched injector set for consistent cylinder-to-cylinder fueling.
- SAC10 “TorqueMaster” nozzle spec for a mild increase over stock while keeping street manners.
- Remanufactured on OE-grade equipment, built for durability and reliability.
- Direct-fit for LLY with factory-style connectors and lines.
Fitment
2004.5–2005 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD with 6.6L Duramax LLY.
What’s Included
- (8) Remanufactured S&S Diesel TorqueMaster Injectors — LLY-10SAC-R-SET
- Flow data & test results (per S&S process)
- Installation notes
Recommended Supporting Parts
- GM Duramax Injectors & Nozzles — Shop Category
- Shop All S&S Diesel at CPP
- GM Duramax Parts Hub (LB7/LLY/LBZ/LMM/LML/L5P)
Installation & Notes
- Professional installation is recommended. Always use clean fuel, new seals, and observe torque specs.
- Core return may be required for reman sets—review your order terms for core policy and timeline.
- After installation, prime the fuel system and check for leaks before startup.
FAQ
How much over stock are TorqueMaster injectors?
TorqueMaster is a “stock-plus” SAC10 nozzle—roughly a mild increase over stock for clean daily drivability with a noticeable bump in fueling.
Do I need tuning with TorqueMaster?
No tuning is typically required for this mild SAC10 spec; however, a well-calibrated tune can optimize smoke control and drivability with other mods.
Will these fit all 2004 trucks?
Fitment is specific to the mid-year 2004.5–2005 LLY (not LB7). Verify your VIN/emissions label before ordering.
Are these injectors sold as a matched set?
Yes. Sets are balanced and flow-matched for even fueling and smooth operation.
What else should I replace during install?
Use fresh seals, consider updated fuel filtration, and inspect return lines/seats. See our Duramax Injectors & Nozzles category for related parts.
