Product Description
CARRILLO DC8559H-6 Cummins Pro-H Deckplate Connecting Rod Set is engineered for extreme cylinder pressure and rpm in 5.9L/6.7L Cummins deck-plate builds using a 1" longer deck (8.559" length). Precision-machined from premium forgings with cap relief and 7/16" fasteners, these rods deliver the stability, bearing crush, and big-power reliability top Cummins builders demand.
Why it wins
- Pro-H beam & cap relief for high boost and high rpm stability
- 7/16" fasteners with premium material for clamping integrity
- Engineered length (8.559") for 1" deck-plate Cummins configurations
- Tight weight matching and CARR/VAR material pedigree for durability
Fitment
Designed specifically for deck-plate Cummins builds (1" longer deck) using 5.9L/6.7L platforms. Commonly used across 1989–2020 Cummins applications when a deck-plate configuration is employed. Not for stock deck-height engines.
What’s Included
- (6) CP-Carrillo Pro-H connecting rods, 8.559" length, with cap relief
- (6) 7/16" rod bolts (premium)
Cross-Reference / Alternatives (CP-CARRILLO ONLY)
- CARRILLO DC7559H Cummins Pro-H Rod Set (H-11 Bolts)
- CARRILLO DC7559S Cummins Pro-H Rod Set (CARR Bolts)
- CARRILLO DCDM8415H-06 6.4L Cummins Pro-H Rod Set (Duramax Pin)
- CARRILLO DH7127SET Cummins Hybrid Common-Rail Piston Set
Helpful Notes
- Verify deck-plate configuration and clearances before assembly.
- Professional machine/assembly practices recommended for race use.
FAQ
Will these fit a stock-height 5.9L/6.7L Cummins?
What bolt material is included?
What power level will these support?
Do I need special pistons for deck-plate builds?
| Field | Value |
|---|---|
| Brand | CP-Carrillo |
| Part Number | DC8559H-6 |
| Engine | Cummins 5.9L / 6.7L (deck-plate builds only) |
| Center-to-Center Length | 8.559" |
| Fasteners | 7/16" premium rod bolts |
| Configuration | Pro-H beam with cap relief |
| UPC | Not provided by manufacturer |
| GTIN | Not provided by manufacturer |
| Shipping Info | Calculated at checkout; Approx. package dims 15" x 8" x 21" |
| Cross Reference | DC8559H (single), DC7559H (standard-length), DC7559S (standard-length, CARR bolts), DCDM8415H-06 (6.4L Duramax pin) |
| E-Codes | N/A (internal engine component) |
| Turbo Series | N/A (connecting rods) |
| Prop 65 | This product may expose you to chemicals including nickel, known to the State of California to cause cancer. Learn more. |
