Product Description
Push your 6.6L build harder with the MAHLE CB-1805HX H-Series Rod Bearing (STD + .001) for 2001–2016 GM Duramax LB7/LLY/LBZ/LMM/LML. Clevite H-Series performance bearings deliver medium eccentricity, high crush, hardened steel back, thin tri-metal overlay, and enlarged chamfers—ideal for high load, sustained RPM, and cranks with large fillets. “HX” provides ~.001" extra oil clearance for a stronger oil film under abuse.
Fitment
- 2001–2016 Chevrolet/GMC 2500/3500 HD — 6.6L Duramax (LB7, LLY, LBZ, LMM, LML)
Cross-Reference / Alternatives (Mahle only)
- Mahle CB-1805H H-Series Rod Bearing (STD): CB-1805H
- Mahle CB-1805P P-Series Rod Bearing (STD): CB-1805P
- Mahle CB-1805H-.25MM H-Series Rod Bearing (.25mm undersize): CB-1805H-.25MM
- Mahle MS-2218H H-Series Main Bearing (STD): MS-2218H
- Mahle MS-2218HX H-Series Main Bearing (STD + .001): MS-2218HX
What’s Included
- (1) H-Series rod bearing pair for a single connecting rod journal (order 8 pairs per engine)
FAQ
What does “HX” mean?
HX denotes approximately .001" extra oil clearance versus standard H-Series—useful for higher load/RPM or tighter hot clearances.
How many do I need?
Eight pairs (one per rod) for a complete V8 Duramax.
Will these fit my Duramax?
Yes—fits 2001–2016 LB7/LLY/LBZ/LMM/LML with standard journal size. Always measure and verify clearances.
Are these tri-metal bearings?
Yes—Clevite H-Series with a hardened steel back and tri-metal overlay, made without flash plating for better seating.
Specifications for Mahle CB-1805HX
| Attribute | Value |
|---|---|
| Brand | Mahle / Clevite (H-Series) |
| Part Number | CB-1805HX |
| UPC | 027067704498 |
| GTIN | 027067704498 |
| Engine Compatibility | 2001–2016 6.6L Duramax (LB7, LLY, LBZ, LMM, LML) |
| Size / Clearance | Standard journal size with ~.001" extra oil clearance (HX) |
| Construction | Tri-metal overlay, hardened steel back; no flash plating; enlarged chamfers |
| Shipping | Standard Ground (rates shown at checkout) |
| Prop 65 | See www.P65Warnings.ca.gov. |