Sale

Engines and Components› Connecting Rods and Components

Callies Performance Products

6.418 Duramax H-Beam Rod Set Compstar Xtreme

$1,232.00 $1,168.00 Save $64.00

SKU: C00V CST6418MS0LCAX

In Stock
In Stock
Ships by Oct 5
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The Callies Performance Products CST6418MS0LCAX is a set of 8 H-beam connecting rods. These rods are constructed from forged 4340 steel and feature a length of 6.418 inches. They are designed for GM Duramax engines and utilize ARP L19 bolts with 7/16 inch cap screws.
Show original supplier description
6.418 Duramax H-Beam Rod Set Compstar Xtreme
Vehicle Symptoms
  • loud knocking noise from lower engine under load
  • metal shavings in oil after oil change
  • engine loses power and idles rough after failure
  • excessive vibration while accelerating
  • oil pressure drops unexpectedly at idle
Relevant Conversations
  • Callies Compstar Xtreme 6.418 Duramax connecting rods
  • Duramax bent rod symptoms knocking noise
  • Callies vs Carillo Duramax H beam rods
  • best Duramax rods for 600whp build
  • 6.418 H beam rod ARP L19 torque specs
  • Duramax rod knock bottom end failure video
  • Callies 6.418 rods LB7 LLY LMM compatibility
  • metal shavings in oil Duramax rod bearing failure
  • Duramax engine build forged rod upgrade forum
  • where to buy Callies Compstar Xtreme rod set

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCallies Performance Products
Part NumberC00V CST6418MS0LCAX

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy