6Y6287 Single Grouser Track Shoe 203mm Pitch 610mm Width Forged 23MnB Boron Alloy Steel for CAT D6R D6H Bulldozer Undercarriage

Product Overview

The 6Y-6287 Single Grouser Track Shoe is a precision-engineered aftermarket component designed for CAT D6R and D6H medium bulldozers. Manufactured from 23MnB boron alloy steel using a 4,000-ton hot forging press, each shoe undergoes strictly controlled austenitizing, quenching, and tempering cycles to achieve optimal hardness distribution — hard on the grouser surface (HRC 44-48) for wear resistance and tough in the core (HRC 32-38) for impact absorption. Every production batch is sampled for dimensional inspection, hardness mapping, and magnetic particle crack detection.

Key Features

• Single Grouser for Mid-Size Bulldozers: Optimized grouser height and spacing for D6-class machines providing excellent traction-to-flotation balance
• OEM Replacement: Direct cross-reference with Caterpillar 6Y-6287, 9G9090, fits D6R, D6H series bulldozers
• Forged 23MnB Steel: Hot die-forged with controlled cooling, induction hardened grouser to HRC 44-48
• Precision Fit: Bolt holes CNC-machined after heat treatment ensuring perfect alignment and zero installation issues

Technical Specifications

Factory Strength

Our manufacturing facility spans over 20,000 square meters equipped with advanced forging production lines, CNC machining centers, and automated heat treatment furnaces. We operate 8 die forging hammers (1T-10T capacity), 12 CNC turning/milling machines, and 4 continuous mesh-belt quenching & tempering furnaces with precise temperature control. Annual production capacity exceeds 500,000 track shoes. Every batch undergoes rigorous quality inspection including dimensional gauging, hardness testing (HRC), ultrasonic flaw detection, and magnetic particle inspection. We hold ISO 9001:2015 and ISO 14001:2015 certifications, with SGS/Bureau Veritas third-party inspection available upon request. Our in-house metallurgical lab ensures consistent 23MnB/25MnB boron steel composition and optimal heat treatment parameters for maximum wear resistance and impact toughness.

Quality Control Process

1. Incoming raw material inspection with spectrometer analysis
2. Forging temperature monitoring and die wear inspection
3. Post-forging dimensional check on sampling basis (1 per 50 pcs)
4. Heat treatment hardness verification (HRC 40-48 on grouser surface)
5. Magnetic particle inspection for surface crack detection
6. Final dimensional inspection with go/no-go gauges
7. Anti-corrosion coating and packing inspection

Applications

Compatible with CAT D6R, D6H, D6T bulldozers. Ideal for construction sites, land clearing, forestry, road building, and medium-duty earthmoving tasks requiring reliable traction.

Frequently Asked Questions

Q1: What is the difference between 6Y-6287 and 6Y-6291?

6Y-6287 (SG203H-12-610) has a 610mm width while 6Y-6291 (SG203H-12-560) has a 560mm width. The wider shoe provides better flotation on soft ground; the narrower shoe offers better maneuverability and less soil disturbance.

Q2: Can these be used on D6T models?

Yes, 6Y-6287 (SG203H-12-610) is compatible with D6T bulldozers. However, always verify your specific machine configuration as some D6T variants may use different shoe specifications.

Q3: How long do these track shoes typically last?

Service life depends on operating conditions. In normal earthmoving, expect 3,000-5,000 operating hours. In abrasive rocky conditions, 2,000-3,000 hours. Our induction-hardened grousers typically outlast non-hardened alternatives by 30-40%.