Bulldozer Track Chain KM2661 1753200410 1753200411 for Komatsu D155 Undercarriage Parts

Komatsu D155 Dozer Track Chain Technical Specifications & Compatibility

Designed to 100% OEM standards, these link assemblies are ready for immediate installation on the following platforms:

Komatsu D155 Dzoer Track Chain Key Features and Advantages

Sealed & Lubricated Design:

Floating seals and pre-filled grease protect against dirt ingress, reducing internal wear by up to 40% in abrasive conditions – perfect for D155 owners facing sand, gravel, or wet soil.

Superior Hardness for Longevity:

Pins and bushings hardened to HRC 58-62 with deep case depth (8-10 mm), minimizing elongation and breakage. Links forged for toughness, so the chain holds up to 4,000-6,000 hours in standard dozing ops.

Exact OEM Fit:

41 links per side, precise tolerances on pin diameter (50 mm) and bushing OD (70 mm) ensure drop-in installation – no rework, no misalignment.

Versatile for D155 Variants:

Compatible with D155A-3, D155A-5, D155AX-6, and similar models, whether you're running standard or extreme-service shoes.

KASU Factory & Export Advantages: Your Partner in China

As a specialized undercarriage manufacturer, we bridge the gap between "Made in China" and "World-Class Quality":

Direct-from-Source Pricing: Eliminate trading company markups. You are dealing directly with the facility that controls the steel, the heat treatment, and the QA.

Export Mastery: We have decades of experience shipping heavy undercarriage components to the USA, Australia, Russia, and SE Asia. We provide full documentation support (CO, Form E, Bill of Lading) and utilize steel-banded, VCI-protected export packaging.

Quality Assurance (QA) Transparency: Every batch comes with a material analysis report and hardness test certificate. We invite third-party inspections (SGS/BV) for bulk orders.

Comprehensive After-Sales & Warranty

We stand behind every link we ship.

Performance Warranty: We offer a pro-rated warranty of 2,000 working hours or 12 months (whichever comes first) against manufacturing defects and structural failure.

Technical Support: Our engineers are available via Video Call to assist your mechanics with installation queries or wear-pattern analysis.

Rapid Logistics: We maintain a core stock of D155 series links, ensuring that your downtime is measured in days, not months.

Related Products for Komatsu D155

Track Rollers (Single/Double Flange)

Sprockets and Segments

Front Idlers

Track Shoes (Various Widths)

Maintenance Tips for Your Dozer Track Chain

To maximize life on your Komatsu D155:

Check sag every 250 hours (aim for 25-35 mm) – too tight wears pins; too loose causes jumping.

Clean debris daily from links and rollers – packed mud accelerates seal failure.

Rotate or flip shoes at 2,000 hours to even out wear.

Monitor for oil leaks or unusual noise – catch early to avoid chain stretch.

Use only compatible grease during relubes, and torque master link bolts to spec (800-900 Nm).