C15 Set:

---Valve guide oem: 1227375

---Intake valve seat oem: 2803979

---Exhaust valve seat oem: 2265561

Designed to meet the rigorous demands of Caterpillar's C15 engine platform, the OEM #1227375 valve guide represents the pinnacle of durability and precision in valve train components. These custom-engineered guides are manufactured to exact Caterpillar specifications, ensuring perfect compatibility and optimal performance in the most demanding applications.

Superior Material Composition and Engineering
The 1227375 valve guides utilize a high-grade bronze alloy formulation that delivers exceptional wear resistance while maintaining necessary thermal conductivity. This specialized material withstands the extreme temperatures (up to 700°C/1292°F) and mechanical stresses characteristic of heavy-duty diesel operation. The precision-honed internal diameter achieves a surface finish of 0.1-0.3μm Ra, promoting optimal oil retention and minimizing friction between the guide and valve stem.

Key Performance Advantages:

1. Extended Service Life - The combination of premium materials and precision manufacturing results in 30-40% longer lifespan compared to aftermarket alternatives, significantly reducing maintenance frequency and downtime.

2. Thermal Stability - Engineered to maintain dimensional accuracy across extreme temperature fluctuations, preventing valve sticking and ensuring consistent performance in all operating conditions.

3. Optimized Lubrication - The micro-groove surface treatment enhances oil distribution while controlling consumption, critical for maintaining proper valve train lubrication.

Application-Specific Benefits:

For fleet operators and equipment managers, these valve guides deliver measurable improvements in:

• Fuel Efficiency - Precise valve alignment maintains optimal combustion chamber sealing

• Reduced Maintenance Costs - Fewer replacements and associated labor expenses

• Enhanced Reliability - Consistent performance in extreme operating environments

Technical Specifications:

• Material: High-density bronze alloy (C95400 equivalent)

• Hardness: 90-100 HRB

• Temperature Range: -40°C to 750°C (-40°F to 1382°F)

• Wall Concentricity: 99.8% minimum

• Surface Finish: Precision honed to 0.1-0.3μm Ra

Ideal for:

• Over-the-road trucking applications

• Mining and construction equipment

• Marine propulsion systems

• Power generation units

• Engine rebuild and remanufacturing programs

The OEM #1227375 valve guides provide Caterpillar C15 engine operators with genuine-equivalent quality that meets or exceeds original equipment performance standards. Their balanced design addresses the critical requirements of wear resistance, thermal management, and precise valve guidance that modern heavy-duty diesel engines demand. Available in standard configurations with options for custom materials or coatings to address specific operational challenges.

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.