Product Description
Tighten up your Duramax valvetrain! The Industrial Injection PDM-07184 Rocker Arm Spacer Kit is engineered to stabilize the factory rocker arm assemblies on 2001–2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML). By properly spacing the rockers, this kit helps reduce side-loading, improves alignment across the valve tips, and increases reliability at higher RPM and elevated spring pressures—perfect for tuned work trucks and performance builds.
- Precision-machined spacers for consistent rocker alignment
- Improves valvetrain stability under boost and high RPM
- Direct-fit for 2001–2016 GM 6.6L Duramax platforms
- Supports builds using upgraded springs, pushrods, and studs
- Durable materials to handle heat and oiling environments
FITMENT
- 2001–2004 LB7 6.6L Duramax
- 2004.5–2005 LLY 6.6L Duramax
- 2006–2007 LBZ 6.6L Duramax
- 2007.5–2010 LMM 6.6L Duramax
- 2011–2016 LML 6.6L Duramax
WHAT’S INCLUDED
- (1) Rocker arm spacer kit (PDM-07184)
- Install notes
RECOMMENDED COMPANION PARTS
- ARP Head Stud Kit – locks down the heads for tuned setups
- Upgraded Valve Springs – control valve float at higher RPM
- Chromoly Pushrods – increased stiffness for performance builds
- Valve Cover Gaskets – refresh while you’re in there
- More Industrial Injection Components
INSTALL NOTES
- Clean, inspect, and torque to factory specifications unless otherwise specified by your cam/spring setup.
- Verify rocker side-play after installation.
- Professional installation recommended for modified valvetrain builds.
SPECIFICATIONS
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-07184 |
| Engine Fitment | GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML), 2001–2016 |
| Material | Precision-machined spacers (application-specific) |
| UPC | TBD |
| GTIN | TBD |
| California Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQ
Q: Do I need upgraded valve springs to run this kit?
A: No, it works with stock valvetrain, but it really shines when paired with performance springs and pushrods.
Q: Will this fit all 2001–2016 Duramax engines?
A: Yes—LB7, LLY, LBZ, LMM, and LML are supported. See the Duramax category for more model specifics.
Q: Is tuning required?
A: No tuning required. This is a mechanical valvetrain aid that complements stock or tuned engines.
Q: Can I install at home?
A: Experienced DIYers can install with standard tools. If you’re running an aftermarket cam or high spring pressure, professional installation is recommended.
