Product Description
MAHLE CB-1873H H-Series connecting rod bearing is built for high-load, high-RPM Cummins builds. With a hardened steel back, thin overlay, and enlarged chamfers for fillet clearance, this bearing provides stable oil film and race-bred durability for 2003–2018 5.9L/6.7L ISB engines—ideal for tuned tow rigs, work trucks, and performance street applications.
Fitment
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins 24V (fractured-cap rods)
- 2007.5–2018 Ram 2500/3500 6.7L Cummins
- 2008–2018 Ram 4500/5500 6.7L Cummins
- Standard size (STD). One pair services one rod; order 6 pairs per engine.
Cross-Reference / Alternatives (MAHLE only)
- MAHLE CB-1873HX – H-Series, extra clearance
- MAHLE CB-1873AP – P-Series (OE-style), STD
- MAHLE CB-1873H-.25MM – H-Series, .25 mm undersize
- MAHLE CB-1873AP-.25MM – P-Series, .25 mm undersize
Why MAHLE / Clevite H-Series
- Hardened steel back and thin overlay for high specific load capacity
- Enlarged chamfers for fillet clearance on performance crankshafts
- Consistent eccentricity/crush for stable oil wedge under load
Installation Notes
- Confirm journal size and crank fillet radius; select STD vs. undersize or HX accordingly
- Measure oil clearance with plastigage or mic/bore gauge; target per build specs
- Always clean, lube, and torque to rod fastener manufacturer’s specs
FAQ
When should I choose HX over H?
Use HX if you need a little more oil clearance (e.g., performance clearances or polished/knurled journals). Otherwise H STD fits most stock-size journals.
How many pairs do I need?
Six pairs service a complete inline-six Cummins (one pair per rod).
Will these fit powdered-metal fractured-cap rods?
Yes—2003–2018 5.9L/6.7L ISB fractured-cap rods are covered by the CB-1873 family.
| Attribute | Value |
|---|---|
| Brand | MAHLE / Clevite |
| Part Number | CB-1873H (STD) |
| UPC / GTIN | 027067865236 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Typical package ~3.19" W × 2.00" H × 2.44" D. |
| Country of Origin | Not specified |
| Prop 65 | This product can expose you to chemicals including lead and lead compounds, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
