Product Description
Dial in precise oil clearance on your 6.6L with the MAHLE CB-1805P-.50MM P-Series B-Shell Rod Bearing. Engineered on MAHLE/Clevite’s TM-77 tri-metal construction with a hardened steel back, high crush for retention, and a thin overlay, this .50mm undersize bearing is built to survive high load and RPM in performance or heavy-duty use. Use on rods marked “B”; pair with the matching A-shell on each connecting rod.
Fitment
- 2001–2016 Chevrolet/GMC 6.6L Duramax (LB7, LLY, LBZ, LMM, LML) — Silverado/Sierra 2500HD/3500HD; select Express/Savana vans; Kodiak/TopKick (medium-duty). Not for L5P (2017+).
Cross-Reference / Alternatives (Mahle only)
- Mahle CB-1805P (Std) — B-Shell: CB-1805P
- Mahle CB-1805P-.25MM (.25mm) — B-Shell: CB-1805P-.25MM
- Mahle CB-1990P-.50MM (.50mm) — A-Shell mate for the same rod: CB-1990P-.50MM
- Mahle CB-1810P-.50MM (.50mm) — alternate shell option used on some rods: CB-1810P-.50MM
What’s Included
- One (1) B-shell rod bearing pair (.50mm undersize). Verify total quantity; Duramax rods typically use one A-shell + one B-shell per rod.
FAQ
Will this fit my Duramax?
Yes — it fits 2001–2016 6.6L Duramax LB7/LLY/LBZ/LMM/LML. (Not for 2017+ L5P.)
Is this the correct “shell”?
This is a B-shell. Use B-shell bearings on rods marked “B,” and pair them with the appropriate A-shell on the same rod.
Do I need machine work for .50mm undersize?
Yes — .50mm undersize bearings require crankpin machining to the corresponding undersize. Always measure and confirm oil clearance during assembly.
What makes P-Series different?
P-Series uses TM-77 tri-metal with a hardened steel back, high crush, and a thin overlay designed for durability in high-load, high-RPM builds.
Specifications for Mahle CB-1805P-.50MM
| Attribute | Value |
|---|---|
| Brand | Mahle / Clevite (P-Series) |
| Part Number | CB-1805P-.50MM |
| UPC | 27067379719 |
| GTIN | 27067379719 |
| Engine Compatibility | 2001–2016 GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML) |
| Series / Construction | P-Series; TM-77 tri-metal, hardened steel back, thin overlay, high crush |
| Size | .50 mm undersize (B-shell) |
| Package Dimensions | 6.00" × 6.00" × 6.00" |
| Shipping | Calculated at checkout |
| Prop 65 | See www.P65Warnings.ca.gov. |
