25MnB Boron Alloy Steel Track Shoe with 216mm Pitch and Single Grouser Design for CAT D8R D8T Bulldozer Undercarriage

Product Overview

The 7T2392 Single Grouser Track Shoe is a heavy-duty undercarriage component purpose-built for CAT D8R and D8T large bulldozers. Forged from 25MnB boron alloy steel and processed through controlled hot forging with precision die tooling, each shoe achieves optimal grain flow alignment for maximum structural integrity. The single grouser design penetrates deep into rocky, uneven terrain to deliver industry-leading traction. Induction hardening on the grouser tip (HRC 46-50) provides exceptional wear resistance, while the tempered body (HRC 34-40) absorbs severe impact loads without cracking.

Key Features

• Single Grouser (SG) Design: Maximum ground penetration and pulling power for bulldozer applications in rocky, mining, and heavy earthmoving conditions
• OEM Cross Reference: Direct fit for Caterpillar 7T2392, 5801657, compatible with D8R, D8T, D350, PR752 bulldozers
• 25MnB High-Strength Steel: Drop forged with through-hardening heat treatment, grouser tip induction hardened to HRC 46-50 for extreme wear resistance
• Heavy-Duty Bolt Pattern: 4-bolt M22 configuration with reinforced bolt seat area, torque spec 650-700 Nm

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

Designed for CAT D8R, D8T, D350, PR752 bulldozers operating in mining, quarrying, heavy earthmoving, landfill, and rocky terrain applications. The single grouser configuration provides maximum traction and pushing power.

Frequently Asked Questions

Q1: What is the difference between SG and TG track shoes?

Single Grouser (SG) has one tall grouser bar for maximum ground penetration and traction — ideal for bulldozers and rocky terrain. Triple Grouser (TG) has three shorter bars for smoother ride and less ground damage — ideal for excavators on paved or hard surfaces.

Q2: Is 7T2392 compatible with D8N?

The 7T2392 (SG216D-19-610) is specifically designed for D8R and D8T. D8N typically uses a different track shoe specification. Please confirm your machine model and existing shoe part number before ordering.

Q3: Do you provide bolts and nuts with the shoes?

Yes, we can supply complete bolt and nut kits (Grade 12.9, M22) with each order. Please specify if you need hardware included — we offer both shoe-only and shoe-with-hardware options.