gr diesel

G&R Diesel Billet Rocker Box - 07.5-21 Cummins 6.7L

Thoroughbred Sku #: GRD67CM3015
Manufacturer Sku #: 67CM3015

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Product Details

Product Name: G&R Diesel Billet Rocker Box - 2007.5-2021 Dodge Cummins 6.7L
Manufacturer: G&R Diesel
Manufacturer Part #: 67CM3015
Thoroughbred Diesel Part #: GRD67CM3015
Fitment Notes: 2007.5-2021 Dodge Cummins 6.7L

This billet rocker box will be the piece that sets off your late 5.9 or 6.7 Cummins build! Made from high quality 6061 aluminum and integrated steel bosses to eliminate any possibility of stripping out threads. The rear of the rocker box is machined out to provide clearance for head studs.

G&R Diesel Billet Rocker Box Features:

  • Billet Aluminum Finish
  • Integrated steel bosses to eliminate any possibility of stripping out threads
  • Made in the U.S.A.
  • For more information on G&R Diesel call us at 1-866-737-4966


  • Hello, I see it says this can fit a late 5.9 but also only says it’s compatible with ‘07.5 and up. Does this fit an ‘06 5.9? Thank you

    Joseph Zito | 10/11/2022

    06 and up