Caterpillar 1070268/1070265 Exhaust Valve Ring Wear Resistant Valve Seat Alloy

Product Specification

3306 Set:

---Valve guide oem:148-7425

---Intake valve seat oem:107-0268

---Exhaust valve seat oem:107-0265

Precision-engineered for Caterpillar's legendary 3306 engine platform, these OEM-spec valve seats (#1070268 for intake, #1070265 for exhaust) deliver unmatched durability and thermal performance in demanding industrial applications. Manufactured to exact Caterpillar tolerances, these components form the critical sealing surface between valves and cylinder heads, ensuring optimal combustion efficiency throughout the engine's service life.

Advanced Material Science for Extreme Conditions

The intake and exhaust seats utilize different alloy formulations specifically engineered for their respective functions. The exhaust seat features a high-chromium, nickel-rich alloy capable of withstanding continuous 800°C (1472°F) exhaust gas temperatures while resisting oxidation and thermal cracking. The intake seat employs a specialized copper-infused alloy that combines excellent heat transfer properties with superior machinability for perfect surface finish.

Performance Advantages That Matter:

1. Extended Valve System Life - The metallurgical composition reduces valve recession by up to 40% compared to standard seats, dramatically extending service intervals in high-hour applications.

2. Optimized Heat Transfer - Proprietary alloy blends promote efficient heat dissipation from valves to cylinder heads, reducing hot spots that can lead to pre-ignition.

3. Precision Surface Finish - CNC-machined to 0.8μm Ra surface roughness ensures perfect valve-to-seat contact for:

   • Maximum compression retention

   • Reduced blow-by

   • Consistent fuel efficiency

Technical Specifications:

• Exhaust Seat Material: High-nickel chromium alloy (Ni-Cr-Mo)

• Intake Seat Material: Copper-beryllium composite

• Hardness: 45-50 HRC (exhaust), 35-40 HRC (intake)

• Operating Temp Range: -30°C to 850°C (exhaust)

• Concentricity: 99.5% minimum

Ideal Applications Include:

• Industrial power units with continuous operation

• Marine propulsion systems

• Mining equipment

• Generator sets

• Heavy construction machinery

Proven Results in Field Service:
Operators report measurable improvements in:
• 25-30% longer valve service intervals
• 3-5% better fuel efficiency through improved sealing
• Reduced cylinder head temperatures
• Lower maintenance costs through extended component life

These Caterpillar 3306 valve seats represent the ideal balance between precision engineering and practical durability. Available in standard OEM configurations with options for oversized repairs or performance enhancements. The exhaust seat's superior thermal properties make it particularly valuable in turbocharged applications where exhaust gas temperatures routinely exceed standard limits.

With over 30 years of expertise in automotive parts export, we specialize in manufacturing high-precision, high-performance components for global markets. Our products meet stringent quality standards and are trusted by clients worldwide.

• Equipped with advanced testing machinery for material analysis and heat treatment verification.
• Dedicated engineering and QC teams ensure every product meets your exact specifications and performance requirements.

• Custom solutions available based on your samples or technical drawings.
• Trial orders (small quantities accepted) to facilitate smooth collaboration and build long-term partnerships.