Multiquip 11787 Spider Kit 4-Blade Heavy Duty Universal - OEM Replacement Part

The spider kit is a critical rotating assembly that connects the gearbox output shaft to the four trowel blades on walk-behind power trowels. This heavy-duty universal spider features four arms extending radially outward from a cast hub, providing attachment points for blades or accessories. The spider assembly includes trowel arms, attachment hardware, thrust collar, wear ring, and bushings that allow proper blade pitch adjustment and even concrete finishing.

Regular inspection of the spider assembly is essential for maintaining consistent concrete finish quality. Bent trowel arms, worn bushings, or improper spider plate alignment can cause the trowel to bounce, roll concrete, or create uneven swirls in the finished surface. During blade replacement procedures, the spider should be checked for wear and arm straightness. Even slightly bent arms require immediate replacement to prevent poor finishing results and potential damage to other trowel components.

This heavy-duty spider kit is designed for professional concrete finishing applications where durability and precision are critical. Installation requires loosening the cone point square head set screw and attached jam nut on the spider assembly side, then carefully lifting the upper trowel/gearbox assembly.

Compatible with:

• HDA-SERIES Walk-Behind Trowels

Genuine Multiquip OEM part, sold by an authorized dealer.