Multiquip 1490 Spider Assembly 4-Blade Extended Arm - OEM Replacement Part for Power Trowels

The spider assembly is the critical rotating component that connects trowel blades to the gearbox on walk-behind and ride-on power trowels. This 4-blade extended arm configuration (part 1490) ensures proper blade alignment, even concrete finishing, and smooth machine operation. When spider assemblies wear or trowel arms become damaged, symptoms include uneven blade wear, perceptible rolling or bouncing motion during operation, and guard rings that rock up and down relative to the ground surface.

This extended arm spider assembly features a 1 1/8-inch center hole size and is designed for professional concrete finishing applications. The assembly works in conjunction with arm bushings (1161-1), universal spider kit (2827-1), stabilizer ring, and lever springs to maintain precise blade positioning throughout the finishing process. Regular inspection of the spider assembly is critical when machines exhibit poor finishing performance or during routine maintenance intervals.

Compatible with the following Multiquip power trowel models:

• B46 Series (B46H90, B46R90, B46H11, B46S90)
• BH90C
• PRO36, PRO46
• MQT48, SCT46, B42

Genuine Multiquip OEM part, sold by an authorized dealer.