Gear Speed Down ATV Xinyang Mastiff 500

Transmission Precision! – Gear Speed Down (Z=21T) for ATV Xinyang Mastiff 500

Robust reduction gear – OEM Part Number: 24241-5020

Ensure the smooth operation of your drivetrain! This Speed Down Gear with 21 teeth (21T) is an essential component in the reduction gearbox of the Xinyang Mastiff 500. Working in conjunction with other transmission parts, it precisely reduces engine RPM to deliver torque efficiently to the wheels. Manufactured from specially hardened steel, it offers superior resistance against pitting and tooth breakage.

Technical Specifications & Details

• Component: Transmission Gear / Reduction Gear (Speed Down)

• Tooth Count: 21 Teeth (21T)

• OEM Part Number: 24241-5020

• Compatibility: ATV Xinyang Mastiff 500 (XY500ATV) and similar models

• Material: High-strength case-hardened steel

• Benefit: OEM quality for exact gear geometry and long-lasting durability.

Installation & Maintenance Instructions: (For guidance purposes only)

• Visual Compatibility: Before installation, perform a visual check. Count the teeth (21) and compare the internal spline profile and the gear thickness exactly with your old part.

• Gearbox Cleaning: Thoroughly flush the gearbox housing before installation to completely remove any metallic debris from previous damage. Remaining shavings can immediately damage the new gear.

• Bearing Inspection: When removing the shafts, be sure to inspect the transmission bearings. A worn bearing leads to improper gear mesh and will cause premature failure of the gear.

• Lubrication: Use only high-quality gear oil of the viscosity and quantity specified by the manufacturer during reassembly. Lightly coat the gear teeth with oil during the installation process