Product Description
Lock your LB7 injectors down the right way. Industrial Injection’s billet hold-downs for the 2001–2004 6.6L Duramax LB7 include heavy-duty ARP® bolts and a center-aligning washer for repeatable, square installs. Built from heat-treated high-alloy billet steel and proven in performance diesel applications.
Fitment
- 2001–2004 GM 6.6L Duramax LB7 (Silverado/Sierra 2500/3500 HD)
What’s Included
- (8) Billet injector hold-downs (LB7 specific)
- (8) ARP® install bolts w/ ARP lube
- (8) Center-aligning washers
Key Features
- Heat-treated high-alloy billet construction resists distortion under clamp load
- ARP® hardware for reliable clamping and consistent torque
- Center-aligning washer helps ensure proper injector clamp alignment every time
- Torque spec: 55 ft-lbs with ARP lube
Recommended Parts (CPP Internal Links)
- Industrial Injection 412501 Injector Line Set — LB7
- Industrial Injection 412604 Injector Return Line Bolt Kit — LB7 (Set of 8)
- Industrial Injection RTF26402 Injector & Return Kit — LB7
- Industrial Injection PDM-07020 Screw-In Injector Cups — LB7
- BD Diesel 1050141 LB7 Injector Install Kit
- Shop GM Duramax Injectors & Nozzles
Cross-Reference / Alternatives
Helpful Notes
- Always clean threads, apply the supplied ARP lube, and torque in stages to the listed spec.
- Inspect injector cups and lines during service; LB7s are known for cup corrosion and line contamination.
FAQ
Will these hold-downs fit LLY/LBZ/LMM?No. This kit is LB7-specific (2001–2004). For later engines, use the LLY/LBZ/LMM kit linked above.
Do I reuse my factory bolts?No. ARP® bolts are included and should be used with the supplied ARP lube and torque spec.
What torque spec should I use?Torque ARP® bolts to 55 ft-lbs with ARP lube unless otherwise instructed by your engine builder.
What else should I replace while I’m in there?We recommend fresh injector lines, return bolts/seals, and—if needed—screw-in injector cups. See the recommended parts list above.
