Product Description
Stronger oil film. Cooler bearings. More margin. INDUSTRIAL INJECTION’s HX-Series coated rod bearing set is purpose-built for hard-worked and high-RPM 6.6L Duramax builds. Based on proven MAHLE/Clevite H-Series race bearings with .001" extra clearance (HX) and performance coatings, this complete set is a smart upgrade any time the short block is apart.
Fitment
- 2001–2004 LB7 6.6L Duramax
- 2004.5–2005 LLY 6.6L Duramax
- 2006–2007.5 LBZ 6.6L Duramax
- 2007.5–2010 LMM 6.6L Duramax
- 2011–2016 LML 6.6L Duramax
What’s Included
- Complete HX-Series coated connecting rod bearing set for all 8 cylinders (V8)
Key Features
- HX spec (+.001") oil clearance vs. standard H-Series to maintain film strength under load
- Race-bred H-Series construction: tri-metal, hardened steel back, thin overlay
- Performance coating to reduce friction/scuffing and improve boundary lubrication
- Drop-in for standard-size journals (verify crank and rod big-end sizing)
Recommended Parts (CPP internal links only)
- ARP 230-6301 Rod Bolt Kit (01–10 LB7/LLY/LBZ/LMM)
- Gator Fasteners RBK66 Heavy-Duty Rod Bolt Kit (01–10)
- Shop Duramax Studs & Bolts (Main/Head/Fasteners)
- Browse All Duramax Rod Bearings
Cross-Reference / Alternatives
- Industrial Injection PDM-CB-1805HC — H-Series Set (standard clearance)
- MAHLE/Clevite CB-1805HX — individual HX bearing
- MAHLE/Clevite CB-1805H — individual H bearing (STD)
Helpful Notes
- Measure everything. Verify rod big-end size, crank journal size/finish, and bearing crush. Set oil clearances and ring gaps to your build spec.
- Use quality fasteners and accurate torque/bolt-stretch methods for rod bolts.
- HX bearings add ~.001" clearance vs. H-Series. Confirm oil viscosity/pressure targets match your use.
FAQ
What does “HX” mean on these bearings?HX denotes approximately .001" extra oil clearance compared to standard H-Series, which helps maintain oil film at higher load and RPM.
Is this a full set or individual shells?This listing is for a complete rod bearing set to service all eight connecting rods on a V8 Duramax.
Do I need machine work to use these?They are intended for standard-size journals, but you must verify crank and rod sizing. Resize or polish as needed to achieve target clearances.
When should I choose H vs. HX?Choose H for near-stock clearances; choose HX when additional clearance is desired for high load/RPM, thicker oil, or tighter bearing geometry.
