DHD Duramax Diesel Stock Keyed Camshaft LB7 LLY LBZ LMM LML L5P

Stock Duramax engines uses a 5mm dowel pin to keep the engine timed. Its fairly common to see high mileage or high horsepower engines with damaged or sheared dowel pins. Replacing your pinned OE cam with a straight keyed cam can increase your trucks reliability and prevent dangerous mechanical changes to timing. 

DHD's stock improved camshafts are modify to accept a straight keyway for added shear strength and dependability. All camshafts are cleaned, inspected and have polished bearing and lobe surfaces. Camshafts are shipped with the keyway installed. No additional changes are required to your gear or hardware. 

Fitment: (Use the picture below to help you determine which camshaft you need)

• Camshafts with two bearing surfaces with oil galleys are for 01-10 Duramax. This second oil galley is used for turbo supply lube.
• Camshafts with only one bearing surface with an oil galley fit 11-16 LML Duramax. The turbo is supplied oil differently on a LML.
• Camshafts with narrow lobes are found only in L5P 2017+ Duramax Engines.

See Below: