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USD 289.95
Part #: XD387

XDP 3/8" Street Performance Pushrods XD387

2017-2020 GM 6.6L Duramax L5P
Part #: XD387
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The XDP 3/8" Street Performance Pushrods XD387 will strengthen the weak link in the valvetrain of your 2017-2020 GM 6.6L Duramax L5P. The stock pushrods in your Duramax engine can barely handle stock power levels. With greater cylinder pressure and valve spring pressures from elevated engine RPM, the additional stress can rapidly push the limits of your factory pushrods. Even in lightly modified builds, the OE pushrods can rob you of power from excessive flexing that is not visible to the naked eye. In most cases your pushrods won't show signs of failure before they do, so don't let a bent pushrod cause a complete tear down, upgrade today!

The XDP 3/8" Street Performance Pushrods XD387 are made in the USA and feature are manufactured from seamless 4130/4135 chromoly tube that is cold drawn over a mandrel for superior durability. Each CNC machined tip is constructed from 86L20 bar stock that is triple tempered and core hardened for maximum impact and wear resistance. These additional manufacturing processes produce a pushrod that is more resilient and more reliable than your stock pushrods to help you get the most out of your Duramax. 
  • Supports Up To 750HP 
  • 170,000 PSI Tensile Strength 
  • 4130/4135 Chromoly Construction 
  • 3/8" x .095", 8.560" Overall Length

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. Click Here for full warranty policy.


  • MFG. Number XD387
  • Manufacturer Name XDP
  • Shipping Weight 5.00 lb.
  • Shipping Length 8 in.
  • Shipping Width 14 in.
  • Shipping Height 8 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.