Which Caterpillar Models Use the 6D1904 Grader Overlay?

The 6D1904 Grader Overlay is a critical wear component designed specifically for Caterpillar motor graders, providing essential protection and extending the service life of these heavy-duty machines. This precision-engineered overlay is compatible with several popular Caterpillar motor grader models, including the 12H, 140H, 143H, 160H, and 12M series. These powerful machines are commonly used in road construction, mining operations, and other demanding applications where ground leveling and material distribution are required. The Grader  6D1904, with its durable construction and perfect fitment, has become an industry standard for contractors and fleet managers looking to maximize equipment uptime and performance while minimizing maintenance costs.

Caterpillar Models Compatible with the 6D1904 Grader Overlay

12H Series Graders: Performance and Durability

The Caterpillar 12H motor grader series represents one of the most widely used grading machines in construction and road maintenance worldwide. When equipped with the  6D1904, these machines achieve optimal performance even in the harshest working conditions. The 12H series features a powerful engine coupled with advanced hydraulic 6D1904s, making it ideal for precision grading tasks across diverse terrains. The integration of the Grader Overlay  with these machines is particularly important as it provides an additional layer of protection to the cutting edge, significantly extending its lifespan. Made from high carbon steel or heat-treated boron steel, the offers exceptional resistance against abrasive materials encountered during operation. Fleet managers consistently report reduced maintenance intervals and lower operating costs when utilizing these premium overlays from Shanghai SINOBL. The precise dimensions of 12×235×463.2mm ensure perfect compatibility with the 12H series, eliminating fitment issues that can arise with lower-quality alternatives. This compatibility makes the Grader an essential component for contractors who rely on their 12H graders for consistent, day-to-day performance in challenging environments.

140H and 143H Models: Enhanced Protection

The Caterpillar 140H and 143H motor graders are renowned for their versatility and reliability in various applications ranging from road maintenance to site preparation. These models face substantial wear challenges, particularly in their blade systems, making the Grader  an indispensable component for their longevity. The 140H and 143H models operate with greater horsepower and torque than their predecessors, which translates to increased pressure on the cutting edges during operation. The Grader Overlay 6D1904 addresses this challenge through its superior material composition, featuring either high carbon steel or heat-treated boron steel that can withstand intense pressure and abrasion. Shanghai SINOBL's manufacturing process ensures that each overlay undergoes rigorous quality control procedures, including advanced material testing and strict dimensional checks to guarantee optimal performance. The overlay's weight of approximately 9.5kg provides the perfect balance between durability and maneuverability, allowing operators to maintain precision control while benefiting from enhanced protection. For 140H and 143H operators working in particularly demanding environments such as mining operations or quarry applications, the Grader Overlay has proven to extend component life by up to 40% compared to standard components, resulting in significant operational cost savings and reduced downtime for maintenance and replacements.

160H and 12M Series: Maximum Efficiency

The Caterpillar 160H and newer 12M series motor graders represent the pinnacle of grading technology, designed for maximum productivity in large-scale projects. These powerful machines benefit tremendously from the integration of the  6D1904, which has been engineered to match their enhanced capabilities and withstand their superior power output. The 160H and 12M series feature advanced blade control systems that allow for precise grading operations, and the Grader Overlay complements these systems perfectly with its precision-engineered dimensions and superior wear characteristics. Shanghai SINOBL manufactures these overlays with exceptional attention to detail, ensuring that each piece meets the exact specifications required for optimal performance. The overlay's dimensions of 12×235×463.2mm are perfectly calibrated for these models, providing comprehensive protection across the entire cutting edge. Contractors utilizing the 160H and 12M series in heavy-duty applications such as road construction or land development projects have reported that the Grader Overlay 6D1904 significantly extends the maintenance intervals of their equipment. This extension of service life translates directly to increased operational efficiency and reduced overall operating costs. With a delivery time of approximately 25 days after order confirmation, fleet managers can effectively plan their maintenance schedules to minimize downtime and maintain peak productivity levels across their projects.

Benefits of Using SINOBL's 6D1904 Grader Overlay

Superior Material Quality and Durability

The exceptional performance of the  Overlay 6D1904 manufactured by Shanghai SINOBL Precision Machinery Co., Ltd. can be attributed primarily to its superior material composition and manufacturing excellence. Unlike standard overlays that might compromise on material quality, SINOBL uses only high-grade carbon steel or heat-treated boron steel, carefully selected to withstand the extreme conditions faced by motor graders in daily operations. The manufacturing process involves precision die forging, which ensures uniform dimensional accuracy and structural integrity throughout each piece. This attention to material quality translates directly to extended service life, with many customers reporting that the Grader Overlay 6D1904 lasts 30-50% longer than competing products in identical working conditions. The overlay undergoes a specialized heat treatment process that significantly enhances its hardness and wear resistance without making it brittle or prone to cracking under stress. This balance between hardness and toughness is critical for motor grader applications where the cutting edge encounters varying materials from soft soil to rock-strewn terrain. Each Grader Overlay 6D1904 is subjected to durability stress tests that simulate extreme working conditions, ensuring that only products capable of withstanding the demands of real-world applications leave the factory. With its weight of 9.5kg and dimensions of 12×235×463.2mm, the overlay provides substantial protection while maintaining the precise specifications required for Caterpillar equipment. Fleet managers particularly value this consistency in quality, as it allows for predictable maintenance schedules and more accurate operational cost calculations.

Cost-Effective Fleet Maintenance

Implementing the 6D1904 from Shanghai SINOBL represents a strategic approach to fleet maintenance that delivers substantial cost benefits over time. The initial investment in premium quality overlays pays dividends through extended service intervals and reduced downtime for equipment maintenance. A comprehensive cost analysis conducted across multiple construction companies revealed that incorporating the Overlay  into their maintenance program reduced overall maintenance expenses by approximately 25% annually. This reduction stems from fewer replacement cycles, decreased labor costs associated with maintenance, and minimized operational disruptions. The overlay's precision engineering ensures perfect fitment with compatible Caterpillar models, eliminating the need for time-consuming adjustments during installation and preventing premature wear due to improper alignment. Shanghai SINOBL offers competitive pricing for bulk orders, making it economically feasible for fleet managers to stock these essential components in advance, further reducing potential downtime due to parts availability issues. The company's flexible payment terms, including T/T and D/P options, provide additional financial flexibility for purchasing departments. For large construction companies operating dozens of motor graders across multiple projects, the cumulative savings achieved through extended component life can amount to tens of thousands of dollars annually. Additionally, the reduced frequency of replacements contributes to sustainability efforts by decreasing material consumption and waste generation. Fleet managers have consistently reported that the Grader Overlay 6D1904's reliability allows them to allocate maintenance resources more efficiently, focusing skilled technicians on preventative measures rather than reactive repairs, which further enhances the overall efficiency of their maintenance programs.

Versatile Application in Challenging Environments

The  6D1904 manufactured by Shanghai SINOBL demonstrates remarkable versatility across diverse and challenging operational environments, making it a preferred choice for contractors working in variable conditions. In extreme cold weather applications such as snow removal operations in northern regions, the overlay maintains its structural integrity and performance characteristics despite the added stress of ice and frozen ground contact. The heat-treated composition prevents brittleness that typical steel components might experience in sub-zero temperatures. Conversely, in high-temperature environments like desert road construction projects, the overlay resists deformation and maintains edge retention where lesser products would quickly deteriorate. Mining and quarry operations present particularly demanding conditions with highly abrasive materials and constant heavy loading. Field tests conducted in active mining sites have shown that the Grader  delivers consistent performance despite continuous exposure to sharp, fractured rock and mineral deposits. The overlay's adaptability extends to agricultural applications as well, where varying soil compositions from sandy to clay-heavy present different wear patterns and challenges. Shanghai SINOBL's commitment to quality control ensures that each Grader Overlay 6D1904 undergoes rigorous testing to verify its suitability for these diverse applications. The company maintains a comprehensive quality management system certified to ISO 9001:2015 standards, with each production batch subjected to material composition analysis, dimensional verification, and hardness testing. This stringent quality control process guarantees that whether the overlay is being used in road construction, mining operations, or agricultural land preparation, it will deliver consistent protection and performance. The versatility of the Grader Overlay 6D1904 makes it an essential component for contractors who operate across different regions and project types, eliminating the need for specialized components for each application and simplifying inventory management.​​​​​​​

Procurement and Installation Considerations

Identifying Genuine SINOBL 6D1904 Overlays

In a market flooded with aftermarket parts of varying quality, identifying genuine Shanghai SINOBL 6D1904 components is crucial for ensuring optimal performance and longevity of your Caterpillar motor graders. Authentic SINOBL overlays feature distinctive quality markers that distinguish them from imitations. Each genuine overlay bears the "SINOBL" logo prominently displayed, though customized OEM logos are available upon request for fleet branding purposes. The precision manufacturing process results in consistent dimensions of exactly 12×235×463.2mm, with no variations that might compromise fitment or performance. The weight should be approximately 9.5kg, providing the ideal balance between durability and functionality. Counterfeit overlays often fall short in weight due to the use of inferior materials or inadequate thickness. The surface finish of genuine SINOBL Grader Overlay 6D1904 components exhibits a uniform appearance without irregularities, burrs, or surface defects that might accelerate wear or interfere with installation. The color is typically yellow unless otherwise specified by the customer, with a consistent hue that results from proper heat treatment processes. Shanghai SINOBL employs a comprehensive tracking system for quality assurance, with each batch of overlays undergoing material composition analysis, hardness testing, and dimensional verification. For bulk orders, certificates of authenticity can be provided upon request, offering additional assurance of product legitimacy. The packaging of genuine parts also serves as an indicator, with SINOBL using sturdy plywood pallets wrapped with protective plastic to ensure components arrive in pristine condition. This attention to packaging detail reflects the company's overall commitment to quality throughout the supply chain. By familiarizing themselves with these identifying characteristics, procurement managers can avoid the costly mistakes of purchasing lower-quality imitations that ultimately lead to premature wear, equipment damage, and increased operational costs.

Optimizing Installation for Maximum Performance

Proper installation of the 6D1904 is critical for maximizing its performance benefits and ensuring the longevity of both the overlay and the cutting edge it protects. Experienced maintenance crews follow a systematic approach that begins with thorough preparation of the installation surface. Any debris, rust, or remnants of previous overlays must be completely removed to ensure proper seating of the new component. The mating surfaces should be inspected for damage or deformation that might prevent flush contact between the overlay and the blade. The Grader 's precisional dimensional specifications (12×235×463.2mm) facilitate perfect alignment with compatible Caterpillar models, but proper positioning remains crucial for optimal performance. Maintenance technicians should ensure that the overlay is centered on the cutting edge with equal protrusion on both ends if applicable. This prevents uneven wear patterns that could compromise grading precision and accelerate component deterioration. The fastening hardware used for installation plays a significant role in the overlay's performance and durability. Shanghai SINOBL recommends using high-strength, grade 8 or higher bolts with proper thread engagement to secure the overlay firmly in place. Torque specifications should be strictly followed to prevent under or over-tightening, both of which can lead to premature component failure. A progressive tightening pattern starting from the center and moving outward helps ensure even pressure distribution across the entire overlay. After installation, a comprehensive inspection should be conducted to verify proper alignment and secure fastening before returning the equipment to service. Maintenance teams should establish a regular inspection schedule for the Grader Overlay 6D1904, checking for signs of excessive wear, loose fasteners, or shifting position. This preventative approach allows for minor adjustments that can significantly extend component life. By following these installation best practices, fleet managers can maximize the return on their investment in premium Grader Overlay 6D1904 components from Shanghai SINOBL, achieving optimal performance and longevity in their Caterpillar motor grader fleet.

Maintenance Schedule and Replacement Timing

Developing an effective maintenance strategy for the Overlay 6D1904 is essential for optimizing equipment performance and controlling operational costs. Shanghai SINOBL's premium quality overlays offer extended service life compared to standard components, but proper maintenance and timely replacement remain critical factors in maximizing this advantage. Experienced fleet managers implement a proactive inspection program that includes regular visual assessments of overlay condition, typically conducted at 50-hour intervals during normal operation. These inspections focus on identifying wear patterns, checking for loosened fasteners, and assessing overall component integrity. In particularly abrasive environments such as quarry operations or road reclamation projects, more frequent inspections may be necessary. The  6D1904's wear characteristics provide valuable indicators for replacement timing. Optimal replacement should occur when approximately 75-80% of the overlay material has been consumed, before wear progresses to the point of affecting the main cutting edge. This proactive approach prevents costlier damage to the blade itself and maintains consistent grading performance. Shanghai SINOBL's engineering team has developed wear measurement guidelines specifically for the Grader , taking into account its original dimensions of 12×235×463.2mm and material properties. Maintenance crews can use these guidelines to make objective replacement decisions rather than relying on subjective assessments. Many sophisticated fleet operations incorporate the Grader Overlay 6D1904 into their computerized maintenance management systems, tracking hours of operation, working conditions, and historical wear rates to predict optimal replacement intervals. This data-driven approach allows for more accurate maintenance budgeting and inventory planning. With Shanghai SINOBL's delivery timeframe of approximately 25 days after order confirmation, procurement departments can schedule replacements well in advance of actual need, minimizing downtime due to parts availability issues. The company's substantial manufacturing capacity, including 2,000 tons of curved blades monthly, ensures reliable supply even for large fleet operations. By developing and adhering to a structured maintenance and replacement program, equipment managers can fully realize the economic and performance benefits that the premium Grader Overlay 6D1904 delivers to their Caterpillar motor grader fleet.

Conclusion

The  6D1904 stands as an essential component for Caterpillar motor graders, including the 12H, 140H, 143H, 160H, and 12M series. Shanghai SINOBL's premium manufacturing ensures superior durability, cost-effective fleet maintenance, and exceptional performance across challenging environments. With proper installation and maintenance, these overlays significantly extend equipment life and reduce operational costs.

Looking to optimize your fleet's performance? Shanghai SINOBL offers unmatched expertise in wear-resistant parts, with manufacturing capabilities of 2,000 tons of curved blades monthly. Our components are crafted from premium materials using advanced technology, ensuring maximum durability and significant cost savings. Experience our industry-leading quality firsthand—contact us today at Info@wearpart.com to discuss how our Grader Overlay 6D1904 can transform your equipment's performance and longevity.

References

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