102-8151 Premium Forged Excavator Front Idler Group for Caterpillar CAT 320 Series Maximize your excavator's undercarriage life with YSM's 100% premium forged track guide wheel assemblies. Precision-engineered for the CAT 320 series, our front idlers provide superior core density and extended wear resistance to drastically reduce your job-site downtime and operating costs. Key Highlights: • Extensive Brand Compatibility: Perfect fit for Caterpillar CAT 320, 320B, 320C, 320D, 320E, 320F, and 320G series crawler excavators. • Interchangeable OEM Numbers: Direct lookup replacement for 102-8151, 1028151, 179-3032, and 222-3054. • Component Full Names: Optimized for Excavator Front Idler, Track Idler Group, and Front Guide Wheel Assembly. • Advanced Manufacturing Process: 100% advanced forging with premium alloy steel (quenched and tempered) for a non-porous, high-density structure. • Superior Induction Hardening: Rail surface hardness reaches HRC 50-56 to guarantee reliable deep-wear resistance. • Extended Service Life: Delivers an average of 6 months longer runtime compared to standard low-cost cast idlers. • Strict Quality Assurance: Every single front guide wheel undergoes rigorous ultrasonic flaw detection before shipment.

7G4918 Premium Forged Front Idler Group for Caterpillar CAT D9N / D9R Bulldozers Reduce your fleet's maintenance downtime with YSM's 100% advanced forged front guide wheel assemblies. Specifically engineered for CAT D9N and D9R track-type tractors operating in extreme mining and quarry environments, our idlers offer superior impact resistance and extended wear life. Key Highlights: • Precision Compatibility: Tailored perfectly for Caterpillar CAT D9N and D9R crawler bulldozer undercarriage parts. • Product Full Names Coverage: Fully optimized for Front Idler Group, Track Idler, Idler Assembly, and Bulldozer Guide Wheel. • 100% Advanced Forged Process: Ensures a completely pore-free surface and high-density core hardness to resist heavy mining loads. • 6-Month Lifespan Extension: Proven to last approximately 6 months longer than traditional standard cast idlers. • OEM Alignment & ITR Quality: Manufactured to strict international dimensional tolerances, matching premium ITR quality standards. • Factory-Direct Procurement: Sourced directly from our China plant, minimizing middleman costs for global distributors and fleet operators.

103-0109 Premium Forged Front Idler Group for Caterpillar CAT D8N / D8R Bulldozers Eliminate premature undercarriage failure with YSM's 100% forged front guide wheel assemblies. Engineered as a direct-fit replacement for CAT D8N and D8R tracked tractors, our idlers deliver exceptional resistance to harsh mining impacts while maximizing your fleet's uptime. Key Highlights: • Exact Compatibility: Direct replacement for Caterpillar CAT D8N and D8R heavy bulldozer undercarriage parts. • Complete Components Coverage: Covers Front Idler Group, Track Idler, Idler Assembly, and Bulldozer Guide Wheel specifications. • Advanced 100% Forging Process: Features a non-porous surface and significantly higher core density compared to standard cast idlers. • Extended Lifespan: Average service life is extended by over 6 months under severe high-impact mining conditions. • OEM Global Standards: Strictly adheres to world-class dimensional accuracy; perfectly fits ITR quality and aftermarket requirements. • Factory-Direct Savings: Shipped directly from our China plant to reduce procurement and maintenance costs for global fleet operations.

High-Performance Excavator Track Roller / Bottom Roller for Heavy Machinery Undercarriage Tired of frequent downtime caused by short-lived undercarriage parts? YSM's premium forged track rollers are engineered for the harshest mining and construction environments, delivering unmatched durability and lowering your operating costs. Key Highlights: • Premium Material: Made of 40Mn2 original steel for superior forging density. • Advanced Heat Treatment: Surface hardness reaches HRC 50-55 for maximum wear resistance. • Precision Welding: Utilizes imported Japanese friction welding technology to ensure perfect balance. • Heavy-Duty Bushing: Sourced from top-tier domestic COB copper for extended service life. • Reliable Warranty: Guaranteed minimum usage time of 2000 hours with a 1-year full warranty. • OEM & Custom Service: ITR standard contract manufacturing experience; custom production available based on your drawings.

Heavy Duty Forged Bulldozer Track Roller / Bottom Roller for Komatsu D155 Series Looking for high-durability undercarriage parts for your Komatsu or Shantui D155 bulldozers? YSM's premium forged track rollers are engineered specifically to withstand severe impact and high-abrasion mining environments, significantly extending your equipment's uptime. Key Highlights: • Perfect Compatibility: Tailored for Komatsu D155, D155A-1, D155A-2, D155A-3, D155A-5, and Shantui crawler bulldozers. • Component Full Names: Covers Track Roller, Bottom Roller, Lower Roller, and Lower Roller Assembly specifications. • Premium Material: 40Mn2 original steel for high-density forging to replace standard casting. • Advanced Heat Treatment: Hardness reaches HRC 50-55 to minimize deep-wear deformation. • Precision Engineering: Japanese friction welding technology ensuring zero oil leakage and flawless structural balance. • Heavy-Load Durability: Sourced with premium domestic COB copper bushings for maximized service life. • Factory-Direct Warranty: Minimum 2000 hours guaranteed usage with a 1-year full warranty. • Reputable Background: OEM contract manufacturing experience for global industry leaders like ITR.

Heavy Duty Forged Bulldozer Track Roller / Bottom Roller for Komatsu D85 Series Upgrade your undercarriage reliability with YSM's premium 40Mn2 forged track rollers. Specifically engineered to match the extreme physical demands of Komatsu D85 and Shantui crawler bulldozers in mining and heavy earthmoving sectors, our rollers effectively eliminate premature field failures. Key Highlights: • Precision Brand Compatibility: Tailored perfectly for Komatsu D85, D85A, D85E, D85P, D85ESS, and Shantui crawler bulldozer undercarriage setups. • Component Full Names: Optimized for Bulldozer Track Roller, Bottom Roller, Lower Roller, and Lower Roller Assembly search phrases. • Superior 40Mn2 Forged Steel: Utilizes high-density original forged steel instead of low-cost casting to prevent body cracks under severe shock loads. • Depth Hardness Protection: Advanced heat treatment ensures surface and rail hardness reaches HRC 50-55 for optimal wear life. • Leak-Proof Friction Welding: Implements imported Japanese friction welding tech to achieve seamless structural balance and zero oil leakage. • High-Tier Internal Components: Sourced with heavy-load domestic COB copper bushings to sustain continuous operation. • Factory-Direct Warranty: Minimum guaranteed usage time of 2000 hours paired with a 1-year full warranty. • Reputable OEM Background: Backed by extensive contract manufacturing experience satisfying the premium quality standards of brands like ITR.

Heavy Duty Forged Bulldozer Track Roller / Bottom Roller for Caterpillar CAT D6D Looking for reliable, high-durability undercarriage replacements for your CAT D6D fleet? YSM's premium 40Mn2 forged track rollers are engineered strictly to endure high-impact mining, quarry, and heavy earthmoving operations, drastically cutting down your maintenance costs. Key Highlights: • Precision Brand Compatibility: Fully optimized for Caterpillar CAT D6D crawler bulldozers and track-type tractors. • Product Full Names Coverage: Captured for Bulldozer Track Roller, Bottom Roller, Lower Roller, and Lower Roller Assembly search intents. • 100% Forged 40Mn2 Steel: Built with premium original forged steel to ensure extreme structural density, eliminating internal porosity cracks common in cast rollers. • Depth Hardness Optimization: Specialized heat treatment achieves HRC 50-55 surface hardness for superior deep-wear resistance. • Japanese Friction Welding Tech: Implements imported friction welding machinery for flawless structural alignment and a 100% leak-proof seal. • Heavy-Load Copper Bushings: Equipped with high-tier domestic COB copper bushings to withstand relentless directional stress. • Factory-Direct Warranty: Minimum 2000 hours guaranteed runtime with a 1-year worry-free replacement warranty. • Reputable OEM Quality: Produced with contract manufacturing experience that fits strict premium benchmarks like ITR quality.

High-Performance 35Mn2 / 35MnB Forged Excavator Track Link Assembly for CAT 320 E320 Series Upgrade your machinery's heavy-duty performance with YSM's premium track chains. Specially engineered using top-tier 35MnB steel for high-impact mining and quarry applications, our track links deliver significantly greater wear resistance and structural strength than standard aftermarket alternatives. Key Highlights: • Precision Brand Compatibility: Perfectly matches Caterpillar CAT 320, E320, 320B, 320C, 320D, 320E, and 320F crawler excavators. • Component Full Names Coverage: Captured for Excavator Track Link, Crawler Track Chain, Track Link Assembly, and Sealed Lubricated Chains. • Premium 35MnB Material: Sourced from world-class steel plants (Hangzhou Steel & Baosteel) to drastically outperform common 40Mn2 options in harsh terrains. • Advanced Heat Treatment: Achieves an optimal track link surface hardness of HRC 47-55 with a reliable hardening depth of 5-8 mm. • Leak-Proof Lubricated Option: Offers premium sealed and lubricated track chains utilizing high-tier South Korean oil seals to prevent oil leakage during continuous operations. • Tailored Customization: Flexible manufacturing available for track shoe/link plate width and depth adjustments based on your technical blueprints. • Certified Factory Quality: Manufactured with deep industrial expertise that seamlessly satisfies global OEM benchmarks and fits premium ITR quality standards.

High-Performance 35MnB Forged Excavator Track Link Assembly for CAT E300 / 300B Series Maximize your heavy equipment's undercarriage life with YSM's premium track chains. Specially manufactured using mining-grade 35MnB alloy steel for severe high-abrasion terrains, our track links provide vastly superior tensile strength and structural integrity compared to standard aftermarket options. Key Highlights: • Exact Brand Compatibility: Engineered to perfectly fit Caterpillar CAT E300, E300B, and 300B series crawler excavators. • Component Full Names Coverage: Fully optimized for Excavator Track Link, Crawler Track Chain, Track Link Assembly, and Link Rails. • Premium 35MnB Material: Sourced from industry-leading plants (Baosteel & Hangzhou Steel) to heavily outperform common 40Mn2 materials in rocky environments. • Specialized Heat Treatment: Achieves an optimal rail surface hardness of HRC 47-55 with a reliable depth profile of 5-8 mm. • Leak-Proof Lubricated Technology: Available in sealed and lubricated chain configurations utilizing premium South Korean oil seals to eliminate oil leakage during continuous operations. • Flexible Tailored Engineering: Custom production for chain plate width and depth configurations available based on your technical blueprints. • Global Standards Verification: Backed by expert contract manufacturing quality that satisfies strict OEM benchmarks and fits premium ITR requirements.

High-Performance 35MnB Forged Bulldozer Track Link Assembly for CAT D8N Series Extend your heavy dozer's undercarriage wear-life with YSM's premium track chains. Specially manufactured using mining-grade 35MnB alloy steel for severe high-abrasion and high-impact mining environments, our track links deliver significantly greater tensile strength than standard market alternatives. Key Highlights: • Precision Brand Compatibility: Engineered to perfectly fit Caterpillar CAT D8N heavy-duty crawler bulldozers and track-type tractors. • Component Full Names Coverage: Optimized for Bulldozer Track Link, Crawler Track Chain, Track Link Assembly, and Sealed Lubricated Chains. • Elite 35MnB Raw Material: Sourced from world-class steel giants (Baosteel & Hangzhou Steel) to heavily outperform standard 40Mn2 steel in rocky terrains. • Advanced Heat Treatment: Achieves an optimal rail surface hardness of HRC 47-55 with a reliable hardening depth profile of 5-8 mm. • Leak-Proof Lubricated Track Chains: Specifically recommended for continuous bulldozer operations, featuring premium imported South Korean oil seals to prevent oil leakage. • Tailored Custom Engineering: Supported for track shoe plate width and link depth adjustments based strictly on your technical drawings. • Certified Factory Reliability: Manufactured with contract expertise that seamlessly satisfies strict OEM benchmarks and fits premium ITR quality standards.

High-Performance 35MnB Forged Bulldozer Track Link Assembly for CAT D5N Series Extend your equipment's field wear-life with YSM's premium track chains. Specially manufactured using mining-grade 35MnB alloy steel for severe high-abrasion and high-impact bulldozer environments, our track links deliver significantly greater tensile strength than standard market alternatives. Key Highlights: • Precision Brand Compatibility: Engineered to perfectly fit Caterpillar CAT D5N (XL / LGP) heavy crawler bulldozers and track-type tractors. • Component Full Names Coverage: Optimized for Bulldozer Track Link, Crawler Track Chain, Track Link Assembly, and Sealed Lubricated Chains. • Elite 35MnB Raw Material: Sourced from world-class steel plants (Baosteel & Hangzhou Steel) to heavily outperform standard 40Mn2 steel in rugged terrains. • Advanced Heat Treatment: Achieves an optimal rail surface hardness of HRC 47-55 with a reliable hardening depth profile of 5-8 mm. • Leak-Proof Lubricated Track Chains: Specifically recommended for continuous bulldozer operations, featuring premium imported South Korean oil seals to prevent oil leakage. • Tailored Custom Engineering: Supported for track shoe plate width and link depth adjustments based strictly on your technical drawings. • Certified Factory Reliability: Manufactured with contract manufacturing experience that seamlessly satisfies strict OEM benchmarks and fits premium ITR quality standards.

Heavy Duty 40Mn2 Forged Excavator Sprocket & Drive Sprocket Rim Segments for CAT 320 Series Minimize track downtime and drive-system wear with YSM's premium 40Mn2 forged excavator sprockets. Engineered with a comprehensive whole-gear induction hardening process, our drive rims and segments deliver unparalleled structural strength and ductility to endure harsh mining and earthmoving environments. Key Highlights: • Precision Brand Compatibility: Perfectly matches Caterpillar CAT 320, E320, 320B, 320C, 320D, 320E, and 320F crawler excavators. • Component Full Names Coverage: Fully optimized for Excavator Sprocket, Drive Sprocket Rim, Sprocket Gear Ring, and Track Sprocket Segments. • Elite 40Mn2 Material: Precision-forged with high-grade 40Mn2 steel to guarantee exceptional wear resistance and core structural density. • Full-Ring Heat Treatment: Specialized comprehensive heat treatment for the entire gear ring, maximizing toughness and eliminating operational deformation. • Versatile Configurations Available: Supplying one-piece whole sprockets for 0.8 to 125-ton machinery, and high-quality bolt-on segments for 6 to 100-ton tracked equipment. • Certified Factory Standards: Direct China factory supply backed by manufacturing expertise that seamlessly fits global OEM requirements and premium ITR quality standards.