Direct Fit For XCMG Excavator Models: XE210U, XE210UCA, XE215U, XE225U, XE235UCR, XE245UCR, XE250U, XE300U, and XE215D

Restore factory-level digging power, fuel efficiency, and cycle times to your XCMG crawler excavator. The Daily Driver tier offers a dependable, premium OEM-spec replacement cylinder head engineered specifically for the industrial 6.7L engine. Assembled using a renewed, pressure-tested OEM core combined with brand-new, high-quality internal components, this cylinder head guarantees reliable operation, proper compression sealing, and extensive service life on the job site. It is the ideal choice for routine fleet maintenance and cost-effective engine overhauls, correcting inherent factory casting stresses to minimize unexpected field downtime.

Components and Parts

• Remanufactured Casting: Built from a high-quality OEM core casting that has passed rigorous diagnostic testing and is machined to like-new industrial specifications.

Key Features and Heavy-Duty Fixes

This modern 6.7L head features critical durability updates, backed by an intense inspection protocol to guarantee every commercial specification is met.

• 40 PSI Pressure Testing: After all machining work is completed, every cylinder head is pressure-tested at 40 PSI to confirm zero structural leaks and ensure absolute casting integrity before it ever reaches your machine.

• Blow-Proof Plugs: Threaded, blow-proof plugs are installed in the top of the head for increased security and leak prevention, replacing standard factory pressed-in freeze plugs that are prone to popping out during severe thermal expansion.

• Final Quality Control: The head undergoes a comprehensive final cleaning and strict inspection process. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:

  • Valve Recessions

  • Stem Heights

  • Installed Spring Heights

  • Spring Pressures

  • Keeper and Lock Positions

  • Roughness Average (RA) Surface Finish

Recording This rigorous validation process ensures you receive a cylinder head that is significantly improved over the original factory design and ready for years of demanding excavator operation.

Precision Machining Process

Choate Engineering Performance has incorporated critical modifications to address common failure points of factory 6.7L cylinder heads, drastically improving field reliability:

• Optimal Sealing Surface: The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under high-pressure common rail injection loads.

• Valve Train Geometry Alteration: We custom blueprint the 6.7L head to alter valve height and valve recession, achieving maximum reliability for high-cycle excavator applications.

• Lifter and Crosshead Longevity Fix: Valve stem heights are precisely altered to optimize geometry and remove excessive preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the lifters, crossheads, and camshaft under constant high hydraulic demands.

• Optimized Flow and Sealing: Valve seats are cut with a precise three-angle profile to optimize engine efficiency and ensure an airtight seal.

• Valve Prep: Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.

• All-New Wear Components: New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.

Meticulous Cleaning and Prep Process

Our commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:

• Rigorous Inspection (MPI): Each core is subjected to Magnetic Particle Inspection (MPI) to thoroughly check for any cracks or subsurface imperfections common in high-hour castings.

• Thermal Stress Relieving: The head undergoes a stress-relieving process in a specialized furnace to eliminate residual industrial oils and grease by turning them into ash.

• Material Relaxation: The head is shot-blasted to strip away rust and scaling. This crucial step relaxes the cast iron material before precision machining begins.

• Thread Prep: All broken factory bolts and studs are professionally removed to ensure threads are clean, chased, and ready for an effortless installation on your machine.