Product Description
Race-ready bottom-end stability for your 5.9L/6.7L Cummins. INDUSTRIAL INJECTION's H-Series coated main bearings (PDM-MS-2328HC) use proven MAHLE/Clevite race geometry with a performance coating for improved scuff resistance and oil control in high load, high RPM builds.
Fitment
- 1989-1998 5.9L 12-Valve Cummins (D/W & Ram)
- 1998.5-2002 5.9L 24-Valve Cummins
- 2003-2007 5.9L Common-Rail Cummins
- 2007.5-2018 6.7L Common-Rail Cummins
What's Included
- Complete H-Series coated main bearing set (upper & lower shells)
- Upper flanged thrust bearing
Why H-Series (Race)
- Tri-metal construction with hardened steel back for high load capacity
- Medium eccentricity & high crush for stable seating at high cylinder pressure
- Enlarged chamfers for crank fillet clearance
- No flash plating for precise housing fit in performance/line-honed blocks
- Low-friction coating to help during cold starts and momentary oil-film events
Recommended Parts (CPP Internal Links)
- ARP 247-5402 Main Stud Kit (1989-1997 12V)
- ARP 247-5403 Main Stud Kit (2003-2018 w/ stiffener)
- ARP 247-5401 Main Stud Kit ('97.5-Present, w/o stiffener)
- MAHLE/Clevite MS-2328H (STD) - Reference OE H-Series geometry
- Shop Cummins Studs & Bolts Category
Helpful Notes
- Measure crank and housing bores; line-hone blocks as required. Verify oil clearance and thrust endplay.
- Pair bearing clearance with intended oil viscosity, rpm, and use. HX (extra-clearance) sets are available if needed.
FAQ
Do these include the thrust bearing?Yes-this complete set includes the upper flanged thrust bearing along with the main shells.
When should I choose HX (extra-clearance) instead?Very high rpm, large oil temperature, or polished/ground crank journals may benefit from HX. See our HX listing if you require additional clearance.
Are these suitable for street trucks?They're engineered for competition, but work great in high-power street/strip builds when clearances and oiling are set correctly.
What fasteners should I run?Main studs are strongly recommended for power/boost beyond stock. See ARP kits linked above for the correct year/application.
| Specifications for INDUSTRIAL INJECTION PDM-MS-2328HC | |
|---|---|
| Brand | Industrial Injection |
| Part Number | PDM-MS-2328HC |
| GTIN | 00840256915839 |
| UPC | 840256915839 |
| Engine Compatibility | 1989–2018 Cummins B-Series 5.9L / 6.7L (Dodge Ram 2500/3500/4500/5500) |
| Configuration | H-Series Race Main Bearing Set (STD), coated |
| Country of Origin | Not specified |
| Core Charge | None |
| Shipping Weight | ~3.0 lb (approx.) |
| Package Dimensions | ~7" × 4" × 5" (approx.) |
| Shipping Method | Small parcel (Ground) |
| Prop 65 Warning | This product can expose you to chemicals including lead and chromium, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more. |
