Product Description
MAHLE/Clevite CB-1805HX is an H-Series connecting rod bearing with .001" extra oil clearance (STD + .001) for the 2001–2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML). Built on TM-77 tri-metal material with a hardened steel back and thin overlay, it’s designed for high load and sustained RPM use.
- Series: H-Series (performance)
- Size: Standard with .001" extra clearance (HX)
- Material: TM-77 tri-metal; high crush; medium eccentricity
- Features: enlarged chamfers for crank fillet clearance; no flash plating for better seating
- Unit: Sold individually
Specifications
- Housing bore (min–max): 2.637"–2.638"
- Shaft diameter (min–max): 2.476"–2.477"
- Vertical oil clearance (min–max): 0.002"–0.004"
- Max length: 0.934"
- Wall thickness (max): 0.079"
- GTIN/UPC: 027067704498 • MPN: CB1805HX
Fitment
- 2001–2004 LB7 6.6L Duramax
- 2004.5–2006 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) H-Series connecting rod bearing, standard size with .001" extra oil clearance (HX). Note: XDP lists this item as “Sold Individually.”
Cross Reference / Related
- Clevite/MAHLE: CB-1805HX (this item), CB-1805H (H-Series, standard clearance), CB-1805P (P-Series, standard)
- Common pairing: TW-610S thrust washer set; CS54580/CS54580A/CS54580B lower gasket sets (engine-year dependent)
FAQ
What does “HX” mean?
HX indicates approximately .001" extra oil clearance versus standard H-Series bearings for additional film under higher load/RPM.
How many do I need?
A V8 requires eight rod bearing pairs to service all rods. Vendors vary packaging; XDP flags this SKU as “Sold Individually,” so confirm quantity for your build.
Will these fit my Duramax?
Yes—fits 2001–2016 6.6L Duramax LB7/LLY/LBZ/LMM/LML with stock journal size. Verify crank journal and rod condition during assembly.
When should I choose HX over H?
Use HX when you need a touch more clearance for performance tolerances, higher oil temps, or crankshaft fillet/chamfer considerations.
