2017-2023 6.6L Duramax L5P X-Series Piston Kit - Stock Pistons (.040) - Industrial Injection - 44D103

2017-2023 6.6L Duramax L5P X-Series Piston Kit
Industrial Injection X-Series Piston Kits are built for 2017-2023 GM 6.6L Duramax L5P engine rebuilds, towing applications, and performance diesel builds. Each kit is designed as a drop-in replacement matched piston set and is available in multiple bore sizes to match your engine build.
Choose from Stock Replacement or Coated and De-Lipped piston options depending on your build requirements.
Stock Piston Kit Features
Fits 2017-2023 6.6L Duramax L5P engines
Drop-in replacement matched piston set
Complete with rings, wrist pins, and clips
Available in Standard, .020", and .040" sizes
Low Friction Anti-Scuff Skirt Coating
Premium PVD ring pack for enhanced sealing and durability
Ideal for OEM-style rebuilds, towing applications, and reliable performance upgrades
Coated and De-Lipped Piston Kit Features
Fits 2017-2023 6.6L Duramax L5P engines
Drop-in replacement matched piston set
Complete with rings, wrist pins, and clips
Available in Standard, .020", and .040" sizes
De-lipped piston design for performance diesel applications
Thermal barrier coating on piston tops
Low Friction Anti-Scuff Skirt Coating
Premium PVD ring pack for enhanced sealing and durability
Designed for increased cylinder pressure, elevated boost, heavy towing, and performance builds
Available Sizes
Standard .020" Oversize .040" Oversize
Choosing the Right Piston Option
Stock Replacement pistons are a strong choice for standard rebuilds, tow rigs, and reliable street applications. Coated and De-Lipped pistons add piston top coating, skirt coating, and de-lipped machining for more demanding Duramax performance builds.
Product Spec Sheet: Click Here
Important Note
Confirm bore size, piston specification, and engine build requirements before ordering. For performance builds or modified engines, consult your engine builder to verify the correct piston setup.