MAHLE CB-1873AP-.50MM CONNECTING ROD BEARING SET (.50MM) FOR 03-18 CUMMINS 5.9/6.7

Product Description

Dial in correct oil clearance after a crank regrind with the MAHLE CB-1873AP-.50MM Connecting Rod Bearing Set for 2003–2018 Cummins 5.9L/6.7L (24-valve). This P-Series design uses a tri-metal upper shell for load capacity and a bi-metal aluminum lower for stable film strength and scuff resistance—ideal for street, tow, and work builds that need .50 mm undersize bearings. Sold per rod (pair); order six pairs for a full engine.

Mahle CB-1873AP-.50MM rod bearings, Cummins 5.9 6.7 connecting rod bearing .50mm under, P-Series aluminum bearings, tri-metal upper bi-metal lower, fractured-cap rod bearings 2003-2018 Ram 2500 3500, CPP Diesel Mahle bearings

Fitment

• 2003–2007 Dodge Ram 2500/3500 — 5.9L Cummins 24V (fractured-cap rods)
• 2007.5–2018 Ram 2500/3500 — 6.7L Cummins 24V (fractured-cap rods)

Cross-Reference / Alternatives (Mahle only)

• Mahle CB-1873AP (STD): CB-1873AP (STD)
• Mahle CB-1873AP-.25MM: CB-1873AP-.25MM
• Mahle CB-1873AP-.75MM: CB-1873AP-.75MM
• Mahle CB-1873H (H-Series performance): CB-1873H
• Mahle MS-2328P-.50MM Main Bearings (.50mm under): MS-2328P-.50MM

What’s Included

• One pair of connecting rod bearing shells (.50 mm undersize) for a single rod

Install Notes

• Verify fractured-cap rod style and journal size (.50 mm under) before ordering
• Measure and plastigage; follow Cummins service manual torque and clearance specs

FAQ

Is .50 mm undersize correct for my stock crank?
Only if the rod journals have been ground/honed .50 mm under. Otherwise select STD size.

How many do I need for a full engine?
These are sold per rod (one pair). Order six pairs for a 6-cylinder Cummins.

What’s the construction?
P-Series with a tri-metal upper shell for load capacity and a bi-metal aluminum lower for wear resistance.

Do these fit earlier (non-fractured-cap) rods?
No. They’re for 2003–2018 fractured-cap rods only.

Specifications for Mahle CB-1873AP-.50MM