Product Description
Dominate hybrid Cummins builds with the CARRILLO DCDM8415H-06 Pro-H Connecting Rod Set. This heavy-duty 7/16 CARR bolt configuration with Duramax pin spec is engineered for builders creating the popular “6.4L Cummins” hybrid (5.9L crank in a 6.7L block) — delivering exceptional strength, stability, and precision under extreme cylinder pressures.
Key Features
- Pro-H beam design for superior stiffness and reliability in high-HP diesel builds
- Duramax pin configuration with 7/16 CARR bolts for enhanced clamping strength
- Built for hybrid 6.4L Cummins combos (5.9 crank / 6.7 block)
- Precision-machined, balanced, and ready for serious boost and rpm
Fitment Details
Intended for hybrid Cummins “6.4L” builds using a 5.9L crankshaft in a 6.7L block. Professional engine builder fitment and clearances are required. Verify pin size, compression height, and piston compatibility for your exact combo before assembly.
Recommended CP Carrillo Cross-References (on CPP Diesel)
- CARRILLO DC7559S CUMMINS PRO-H CONNECTING ROD SET (WITH CARR BOLTS)
- CARRILLO DC7559H CUMMINS PRO-H CONNECTING ROD SET (WITH H-11 BOLTS)
- CARRILLO DC8559H-6 CUMMINS PRO-H DECKPLATE CONNECTING ROD SET (1" LONGER)
- CARRILLO DH7105PRKH-64-HDSET 6.4L HYBRID PISTON & ROD KIT (USES DCDM8415H ROD)
FAQ
Will these rods fit a stock 5.9L or 6.7L Cummins without changes?
They are engineered for a hybrid 6.4L configuration (5.9 crank in a 6.7 block). Stock applications typically require different rod/piston specs. Always verify dimensions for your build.
What pin size and bolts are these?
Duramax-style pin configuration with heavy-duty 7/16 CARR bolts. Confirm piston pin and compression height specs to ensure full compatibility.
Do I need machine work or clearancing?
Hybrid setups generally require precise measurements and may require block, crank, or piston clearancing. Work with a professional engine builder and mock-up before final assembly.
Are these suitable for high boost and racing?
Yes — Pro-H design and CARR hardware are built for serious power. Always pair with appropriate pistons, pins, bearings, and fastener stretch/torque procedures.
Specifications
| Brand | CP Carrillo |
| Part Number | DCDM8415H-06 |
| UPC | Not specified by manufacturer |
| GTIN | Not specified by manufacturer |
| Shipping Info | Calculated at checkout; add optional shipping insurance at checkout. |
| Cross Reference | DC7559S, DC7559H, DC8559H-6, DH7105PRKH-64-HDSET |
| E-Codes | Not applicable |
| Turbo Series | Not applicable (connecting rods) |
| Prop 65 | ⚠️ Cancer and Reproductive Harm — see www.P65Warnings.ca.gov. |