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.
