Technical specification for the Hayter blade boss / blade-carrier 410078, used on Harrier, Ranger, and Spirit line mowers.

Key Features

• Genuine OEM blade boss / blade-carrier (Hayter part 410078) designed to fit multiple Harrier, Ranger, and Spirit models.
• Central hub that securely connects the cutting blade to the mower spindle/shaft, transmitting torque from the drive system to the blade.
• Maintains correct blade alignment and balance to ensure true rotation, reducing vibrations and protecting the mower deck and spindle from wear.
• Secure mounting support enables safe, stable mowing and consistent blade tracking under varying load conditions.
• OEM-spec part ensures proper fit, reliability, and longevity compared to generic alternatives, simplifying replacement and maintenance.

Product Details

• Official Hayter replacement blade boss (blade-carrier), part number 410078.
• Functions as the central hub that connects the blade to the spindle and transmits torque from the drive system to the blade.
• Key benefits include true rotation, preserved blade tracking, reduced vibration, and protection for the deck and spindle from misalignment or looseness.

Compatibility

• Hayter Harrier 41 models: 410A, 410C, 410D, 410E, 410G, 410H, 411A, 412A, 412C, 412D, 412E, 412G, 412H, 413A, 413C, 413D, 413E, 413G, 413H, 414H
• Hayter Ranger 41 models: 415A, 415C
• Hayter Harrier 48 models: 490D, 490E, 490F, 490G, 490H, 490J, 491D, 491E, 491F, 491G, 491H, 491J, 496D, 496E, 496F
• Hayter Spirit 41 mower models: 616D, 616E, 616J, 617D, 617E, 617J, 619D, 619E, 619J