Premium Grade 14X-78-11310 Pins:
Premium Grade 14X-78-11310 Pins: Reliable Wear-Resistant Components for Komatsu D65/D68 Series Construction Machinery
ning Tongderui Engineering Machinery Co., Ltd. proudly presents the high-quality 14X-78-11310 pins, purpose-built for Komatsu D65 and D68 wheel loaders and bulldozers. These precision-engineered components serve as critical structural fasteners in the machine's undercarriage and linkage systems, directly impacting equipment stability, operational safety, and service life in the harshest construction environments.
Manufactured from premium alloy steel, our 14X-78-11310 pins undergo strict heat treatment processes including quenching and tempering, achieving an ideal balance of surface hardness and core toughness. The smooth, precision-ground outer surface, as clearly visible in the product image, minimizes friction with mating bushings while resisting abrasive wear caused by constant contact with dust, mud, and debris. The central lubrication hole on each pin ensures effective grease distribution during maintenance, reducing dry friction and preventing premature seizure in heavy-load applications.
Each pin is machined to OEM-level dimensional accuracy, guaranteeing a perfect fit for Komatsu D65 and D68 models. This eliminates the risks of loose fit, excessive play, or assembly errors that can lead to accelerated wear, component damage, or even unexpected downtime. The hardened surface layer effectively withstands continuous shear forces and impact loads during dozing, loading, and grading operations, significantly extending service life compared to low-grade alternatives.
Designed for the rigorous demands of construction sites, these pins are engineered to perform reliably under extreme conditions, from dusty quarries to muddy earthwork sites. The high-quality material and precise manufacturing ensure excellent resistance to deformation, fatigue, and corrosion, even with prolonged heavy-duty use. For fleet operators and maintenance teams, this translates to fewer replacements, lower maintenance costs, and higher overall equipment uptime.
At Tongderui, every batch of 14X-78-11310 pins undergoes rigorous quality inspections, including dimensional checks, hardness testing, and surface quality verification, to ensure full compliance with industry standards and OEM specifications. We maintain a large inventory of these pins, along with a complete range of matching bushings and undercarriage parts, enabling quick order fulfillment and fast delivery to meet urgent maintenance and repair needs for customers worldwide.
As a trusted supplier of Komatsu aftermarket parts, Tongderui is committed to providing high-quality, cost-effective solutions for construction machinery owners and operators globally. Our 14X-78-11310 pins combine durable performance, precise fit, and reliable quality, making them the ideal choice for maintaining the performance and longevity of Komatsu D65 and D68 equipment.
Whether you are managing a fleet of construction machines, operating a repair workshop, or sourcing parts for international distribution, our 14X-78-11310 pins offer the reliability and performance you need. Partner with Tongderui for all your construction machinery spare parts requirements and experience the difference that quality engineering makes.
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High Quality
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Brand-new construction machinery parts bring more demand to customers.
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Professional team gives customers a full understanding of product performance and better use.
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5-Star Customer Review
Verified Purchase | Fast Shipping | Perfect Performance.Our quality is guaranteed, and many overseas customers have given positive reviews and feedback after purchasing, stating that the performance advantages are good and they are willing to buy again. Moreover, some customers have specifically come to your company for on-site inspections and have expressed their willingness to enter into a long-term partnership with our company
ONegotiating with overseas clients
Great moments with our overseas partner!Quality wins trust, service builds long-term cooperation.We supply reliable construction machinery parts to the world.Welcome more partners to cooperate with us!
Jining Tongderui Construction Machinery Co., Ltd., established in 2011, is a professional supplier of Komatsu and other construction machinery parts, integrating R&D, production, and sales. Our team is highly professional, and we always uphold the following principles in serving customers:
Quality First: All parts are produced in strict accordance with OEM standards, with full-process quality control from raw materials to finished products to ensure stability.
Customer-Centric: We maintain in-depth communication with customers to understand equipment compatibility needs, respond promptly to technical inquiries and after-sales issues, and ensure smooth cooperation.
Win-Win Partnership: With stable product quality, competitive pricing, and comprehensive services, we have reached long-term cooperation consensus with customers at home and abroad, delivering reliable quality, on-time delivery, and attentive service to support the efficient operation of constr
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