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CC21D BC Diesel Reman Steering Box - GM 2011-2016

Mftr. Part#: CC21D
Manufacturer: BC Diesel
2011-2016 GM 6.6L Duramax LML - This high quality replacement steering box is rebuilt to meet and/or exceed OEM specs, but also has some upgrades done to fix known issues from factory units.

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Product TypeSteering Box
BrandBC Diesel



Since this is a remanufactured product, a temporary "core charge" is added up front until we receive your original unit back. Once received and inspected, the charge will be reversed back to you. The core charge will be added to the price below. (Required)


Please choose the year of your truck.



  • All Ball bearings are resized matched to worm and piston to remove backlash
  • Sector Shafts and valving are upgraded
  • All new seals and gaskets
  • Bench tested
  • 1 year warranty