138-6059 – Sheave-Drive, Blade (3BT) – Genuine Toro OEM Part control and comfort Packaging: Single unit

Packaging: Single unit

grip sleeve

Caster Tires: 11" x 4"-5" (36" and 42")

Supports longer service intervals compared to standard filters

helping maintain proper combustion

138-6059 – Sheave-Drive, Blade (3BT) – Genuine Toro OEM Part control and comfort Packaging: Single unit138 6059 Sheave Drive, Blade (3BT) Genuine Toro OEM Part The Toro 138 6059 Blade Drive Sheave (3BT) is a genuine Toro OEM pulley component designed to transfer power efficiently from the drive belt to the blade spindle system within the mower deck. This sheave ensures proper belt tracking, consistent blade speed, and smooth power transmission for reliable cutting performance. Manufactured to Toro original equipment specifications, the 138 6059 sheave