Manton Series 3 Pushrods (7/16"x.120")

Part# D305DMAX

$390.08 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Manton Series 3 Pushrods

Fits 2001-16 6.6L Duramax



  • 7/16" Diameter x .120" Wall Thickness
  • Hard Drawn 4130/4135 seamless chromoly tubing
  • Billet 86L20 triple tempered tip ends
  • Approx. 170,000 psi tensile strength
  • 1000HP Rating
  • STOCK LENGTH Pushrods

Due to the marginal column strength, Manton feels OEM pushrods are not adequate for anything other than a Stock vehicle. When the stress on the pushrod surpasses what is considered a reasonable window of operation, the OEM pushrod is not designed to support the additional load that the valve train system is experiencing .

To provide increased pushrod column strength and valvetrain stability, Manton offers both 3/8 and 7/16 diameter “3 Piece” pushrods. Manton pushrods are manufactured with 4130/4135 seamless Chromoly tubing with a variety of heat treating conditions and wall thickness’ available, all coming standard with their billet steel tip ends. These tips have been CNC machined from 86L20 bar stock that are then core hardened and triple tempered, providing increased impact and wear resistance. This combination of materials and heat treatment procedures will extend the service life of the pushrod, while improving overall performance of your valve train. Manton's versatility in engineering and design allows them to manufacture a product that will enhance the specific combination of your engine.

When they sat down to engineer a pushrod, they always try to fit the largest diameter pushrod they could, within the space available. By increasing the diameter of the tubing from 3/8 to 7/16, the load can be spread over a larger surface area without causing the pushrods to bind with the port of the cylinder head. This larger diameter tubing will provide almost 2 times the loading capacity before the pushrod begins to deflect. Larger diameter is always a better choice when it comes to pushrods and is why we suggest 7/16 diameter in all Duramax engines.

DmaxStore Note: If you have made any internal engine changes, we recommend checking your pushrod length as you may need custom length pushrods. (PUSHROD LENGTH CHECKING TOOL)