For 293-4669 497-5508 324-8188 Cylinder Head Assembly CAT C9.3 Engine

Specification

Description

293-4669, 497-5508, 324-8188 are matching part numbers for the cylinder head assembly dedicated to CAT C9.3 engines, serving as the core integrated component of the engine's valve train and combustion chamber. Adopting integral casting molding, it integrates valve seats, valve guides, injector mounting holes and cooling water channels, fully complying with CAT's original technical standards, with dimensional parameters precisely matching the engine block. Compatible with heavy-duty equipment equipped with C9.3 engines such as CAT 336GC and 330GC excavators, it can be directly used for engine overhaul replacement, effectively solving problems such as cracks in the original cylinder head, airway wear, and seal failure, and restoring engine power output and operational stability.

Advantage

1. OEM Precise Compatibility:Molded according to CAT C9.3 original drawings, the three part numbers correspond to different configuration needs, key dimension tolerance within ±0.02mm, seamlessly compatible with cylinder block, valves, injectors and other components, in-situ installation without modification.
2. High-Strength Damage-Resistant Design:Alloy cast iron material undergoes quenching and tempering treatment to eliminate casting internal stress, capable of withstanding high-frequency vibration, high temperature and pressure of the engine, not prone to cracks and deformation, service life 40% longer than ordinary aftermarket products.
3. Optimized Airway Design:Streamlined optimization of intake ports, intake efficiency increased by 15%, combined with precisely processed valve seats, ensuring full fuel combustion and reducing fuel consumption by 8%-10%.
4. Integrated Worry-Free Configuration:Pre-installed with core accessories such as valve guides and seats, no need for separate purchase and matching, shortening overhaul period, reducing maintenance complexity, and easy operation for novices.

Performance

• Core Structure:6-cylinder layout, 24 valves (4 valves per cylinder), injector mounting hole spacing 115mm, cylinder head bolt hole distribution fully consistent with CAT C9.3 engine.
• Material Performance:Made of high-strength alloy cast iron, tensile strength ≥320MPa, Brinell hardness 200-240HB, high temperature resistance up to 480℃, excellent thermal fatigue resistance.
• Processing Precision:Airway roughness Ra ≤1.2μm, valve seat coaxiality ≤0.012mm, cylinder head flatness error ≤0.03mm/100mm, ensuring valve timing and sealing precision.
• Sealing Performance:Cooling water channels and oil passages have no leakage after 1.5MPa pressure test, injector mounting surface seal groove precision error ≤0.01mm, preventing fuel leakage.

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