2004.5-2007 Cummins 5.9L 24V ISB X-Series Pistons (245112)

Fits:

Industrial Injection X-Series Premium Piston Kits upgrade your 2004.5-2007 Cummins 5.9L 24V ISB with diesel pistons engineered for durability, reliability, and high-performance power. Each kit is a true drop-in replacement balanced matched set, complete with rings, wrist pins, and clips, and is available in Standard, .020", and .040" oversized options.

Choose the configuration that fits your build: a Stock replacement for OEM-style rebuilds, a Coated & Chamfered kit for high-boost performance and towing, or a Fly Cut, Coated & Chamfered kit that adds piston-to-valve clearance for high-lift camshaft, high-horsepower builds.

Every kit features a ceramic piston skirt coating that reduces friction, handles loads exceeding 350,000 PSI, and lubricates at temperatures over 1600°F with no piston clearance changes, plus a premium PVD ring pack (certain applications) for harder, smoother ring sealing and longer durability than traditional nitride rings. Coated tops add a thermal barrier coating that keeps heat in the combustion chamber, lowers piston temperature, and improves combustion efficiency for more power.

Stock Pistons

• Drop-in replacement balanced matched set
• Complete with rings, wrist pins, and clips
• Ceramic piston skirt coating for reduced friction
• Premium PVD ring pack for enhanced sealing and durability (certain applications)

Coated & Chamfered Pistons - Stock features, plus:

• Chamfered piston tops to reduce cylinder wall scuffing
• Thermal barrier coating on piston tops
• .015" reduced compression height

Fly Cut, Coated & Chamfered Pistons - Coated & Chamfered features, plus:

• Fly cut valve reliefs: .100" for added piston-to-valve clearance on high-lift camshaft builds

• Be sure to select the correct piston configuration and bore size to match your application.
• Oversized pistons require the block to be bored and honed to the matching size.
• Coated & Chamfered and Fly Cut kits use a .015" reduced compression height, suited to higher fueling and boost.
• Supersedes previous Industrial Injection part numbers: PDM-3673, PDM-3673.020, PDM-3673.040, PDM-3673CC, PDM-3673CC.020, PDM-3673CC.040, PDM-3673FCC, PDM-3673FCC.020, PDM-3673FCC.040.