Try-H Brake Control Module for Toro Timecutter and Exmark - Direct-Fit ABS Replacement

Try-H 121-3017 is a direct-fit brake control module replacement designed to restore precise, reliable braking on compatible Toro Timecutter and Exmark Quest mower models.

When your zero-turn mower’s stopping performance or brake responsiveness slips, the brake control module is often the single component that brings braking back under control. This Try-H unit replaces OEM numbers 121-3017, 115-9660 and 120-7144 and is built from ABS with an electronic control system that monitors operation and delivers fast, consistent braking signals across varied terrain.

How will this module affect mower braking and control?

The Try-H module continuously monitors mower inputs and applies electronic braking adjustments to reduce wheel spin and uneven stopping. It’s tuned to provide smooth, quick responses without aggressive over-braking, helping maintain directional control during tight maneuvers.

• Real-time electronic monitoring and adaptive brake modulation
• Fast response to operator input for more predictable stops
• Reduced risk of wheel lockup and improved handling on slopes
• Plug-in compatibility with listed Toro and Exmark models

Which mower models and OEM numbers does this replace?

This module is intended for specific Toro Timecutter and Exmark Quest models from the 2012–2014 era. Before ordering, verify your existing part number matches one of the listed OEM references to ensure proper fit and function.

• Fits Toro Timecutter models: selected 7438x and 7461x–7464x series from 2012–2014
• Compatible Exmark Quest E/S Series models: QT22KA421, QT24KA501, QTE651KA421, QTE691KA501, QTS691KA422
• Replaces OEM numbers: 121-3017, 115-9660, 120-7144, 1213017
• Confirm model and part number before purchase for guaranteed compatibility

What materials and construction details matter for longevity?

The module housing is manufactured from ABS plastic chosen for impact resistance and long service life. Internally, a precision electronic control system and quality connectors are used to maintain reliable signal transmission under vibration and exposure typical of lawn mower operation.

• Durable ABS housing resists impact and weather exposure
• Electronic circuitry calibrated for quick, repeatable responses
• Robust connector interfaces for secure electrical fitment
• Designed to reduce replacements and routine maintenance needs

How easy is installation and what should I check first?

Installation is straightforward for anyone familiar with replacing mower control modules: disconnect battery power, unplug the old unit, swap in the Try-H module and reconnect. Always match OEM numbers and inspect connectors for corrosion or damage before installation.

• Simple plug-and-play replacement for matching part numbers
• Disconnect battery and ground safety recommended before work
• Inspect and clean electrical connectors prior to installation
• Test function at low speed before returning mower to full service

Who is this for: The Try-H 121-3017 brake control module is aimed at owners and technicians of 2012–2014 Toro Timecutter and the listed Exmark Quest models who need a dependable, direct-replacement brake control unit. If you want to restore consistent braking, avoid frequent part swap-outs, and maintain safe, controllable handling during mowing and tight turning, this module offers a cost-effective, long-lasting solution. Remember to verify your mower’s model and OEM part number match the references above before purchase to ensure proper fit and performance.