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  • Most orders over 200 automatically qualify for Free shipping Most orders over $200 automatically qualify for Free shipping.
  • Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary. Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary.
  • Post your favorite Diesel Parts to our facebook for a chance to win a $250 Gift Card! No purchace necessary. Post your favorite Diesel Parts to our facebook for a chance to win a $250 Gift Card! No purchace necessary.
  • Free Next Day Shipping on ALL Tuners!!! <h1><span xmlns="https://www.w3.org/1999/xhtml">YOUR #1 SOURCE FOR #2 POWER!!</span></h1> <span xmlns="https://www.w3.org/1999/xhtml"> </span> Whenever you purchase a tuner from Diesel Power Products, we send it our via next day air. There is nothing else for you to do. Give us a call if you have any questions. Free Next Day Shipping on ALL Tuners!!!

    YOUR #1 SOURCE FOR #2 POWER!!
  • Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary. Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary.
  • We offer Paypal, Elayaway,Google Checkout, Visa, MasterCard, American Express, Discover, Cash, Check by mail and Google Checkout as payment methods. We offer Paypal, Elayaway,Google Checkout, Visa, MasterCard, American Express, Discover, Cash, Check by mail and Google Checkout as payment methods.
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Harland Sharp is an industry leader in Roller Rocker Arm design.

They have been developing high performance rocker arms since the 1950s. Today they continue to make the best rocker arms available and they are 100% made in America. If you have any questions about using a set of Harland Sharp Rockers in your Diesel, please give us a call and tell us about your project.



Harland Sharp Roller Rocker Arms Dodge Cummins
Harland Sharp Roller Rocker Arms Dodge 12V Cummins 1994-98
DPP Price: $1,250.00 
SKU: Harland-DFCM12K
Harland Sharp Roller Rocker Arms Dodge Cummins
Harland Sharp Roller Rocker Arms Dodge 24V Cummins 1998.5-11
DPP Price: $1,800.00 
SKU: Harland-
Harland Sharp Roller Rocker Arms Dodge Cummins
Harland Sharp Roller Rocker Arms Dodge 8V 4BT Cummins
DPP Price: $833.00 
SKU: Harland-BT4
Harland Sharp Roller Rocker Arms GM 6.5L
Harland Sharp Roller Rocker Arms GM 6.5L Diesel
DPP Price: $650.00 
SKU: Harland-
Harland Sharp Roller Rocker Arms PowerStroke
Harland Sharp Roller Rocker Arms PowerStroke 6.0L 2003-07
DPP Price: $2,500.00 
SKU: Harland-DFPS60K