Bularie Idler Pulley Replacement 106-2175/132-9420 – 3 Pack for Toro TimeCutter Mowers

Keep your zero-turn mower performing smoothly with a reliable idler pulley replacement. The Bularie 106-2175 / 132-9420 flat idler pulley is designed to align with popular OEM references, offering straightforward compatibility for your Toro TimeCutter, Exmark Quest, and Lawn Boy decks. This replacement helps maintain proper belt tension and can reduce chatter and downtime, contributing to steadier starts, smoother operation, and quieter mowing sessions. While results can vary by setup, a well-timed pulley upgrade often supports more consistent drive behavior and reduced belt wear.

Key benefits

• OEM part numbers included: 106-2175, 132-9420, Rotary 12901, ensuring recognizable fit and function.
• Three-pulley Pack: a cost‑effective solution for multi-machine use or future spares.
• Durable metal construction designed to withstand vibration and regular exposure to outdoor elements.
• Broad compatibility across Toro TimeCutter, Exmark Quest series, Lawn Boy Z-series, and 42–54 inch decks.
• Flat pulley design supports straightforward installation with standard mounting and belt routing.

Compatibility & specs

The replacement is intended to fit common zero-turn configurations and is built to match standard dimensions. Key measurements are 3/8 inch bore, outer diameter 4 1/8 inches, and height 1 7/16 inches. Please note that minor variances (0.4–0.8 inches) can occur due to manual measurement or model differences.

• Dimensions: ID/Bore 3/8", OD 4 1/8", H 1 7/16"
• Material: metal construction for durability
• Includes three pulleys per package

What’s in the box

• Flat idler pulley x 3
• Secure packaging to prevent damage in transit

Real-world use

In practice, the idler pulley sits on the idler bracket to apply belt tension and promote proper engagement with the drive belt. Installations are straightforward with common hand tools, and the upgraded pulley can contribute to smoother belt operation and reduced noise over time. When replacing, double-check belt alignment and tension to ensure the system remains balanced during operation.

Whether you’re performing routine maintenance or restoring performance on a used mower, this three-pack offers a practical, OEM-compatible option. Consider it for preventive upkeep, seasonal service, or stocking up on spare parts for future maintenance tasks.