Precision Auto Products 36V Controller and Twist Throttle Kit for Razor MX650 MX500 - Direct-Fit 6-Pin Plug-and-Play Upgrade

Precision Auto Products 36V Controller Throttle Upgrade Kit replaces the original control module and twist throttle on Razor MX650, MX500, SX500 and Quad 500 scooters for reliable 36-volt operation.

This complete electrical replacement set pairs a 36V controller module (HB3650-TYD6-FS-ROHS) with a six-wire twist throttle to restore responsive acceleration and proper voltage handling on compatible Razor models. Designed as a direct-fit upgrade for the MX650 and MX500 Dirt Rocket series, the kit also fits the Dirt Quad 500, SX500 McGrath, and EcoSmart scooters, offering a plug-and-play alternative to worn or damaged OEM components.

Will this kit work with my Razor MX650 or MX500?

Yes—the kit is engineered to be compatible with all model variants of the MX650 and MX500, including bikes and quads that use the 36V electrical architecture. It replaces the existing controller module and the twist throttle using the supplied 6-pin connector, eliminating compatibility headaches.

• Includes controller model HB3650-TYD6-FS-ROHS designed for 36V systems
• Comes with the 6-wire twist throttle (part # W13114501043)
• Fits MX650, MX500, Dirt Quad 500, SX500 McGrath and EcoSmart scooters

How does installation work and how difficult is it?

Installation is straightforward for someone with basic mechanical skills and a few hand tools; the controller and throttle use the factory wiring harness and mount points. The kit is intended as a direct replacement so you swap out the old module and twist throttle, reconnect the 6-pin harness, and secure the new parts in place.

• Plug-and-play 6-pin connector matches the OEM wiring harness
• No soldering required for most installations
• Mounting points mirror factory locations for an easy fit

What improvements or benefits should I expect after upgrading?

After installing the replacement controller and throttle, riders typically see consistent throttle response and correct voltage regulation across the 36V system, which helps the scooter perform as intended. The components are precision engineered to meet fit and function requirements, reducing flicker or intermittent power issues caused by aging electronics.

• Restores consistent throttle control and acceleration feel
• Reduces electrical faults tied to worn controllers or throttles
• Quality-engineered parts intended for direct OEM compatibility

What exactly is included in the 36V electrical kit?

The package contains a 36-volt controller module HB3650-TYD6-FS-ROHS and a six-wire twist throttle (part # W13114501043). These two components are the primary electrical elements needed to replace the original controller and throttle assembly on compatible Razor models.

• 36V controller module (HB3650-TYD6-FS-ROHS)
• 6-wire twist throttle (W13114501043) with 6-pin connector
• Instructions and mounting compatibility details from the manufacturer

Who is this for: This Precision Auto Products upgrade kit is aimed at owners of Razor MX650, MX500, SX500 McGrath, Dirt Quad 500 and EcoSmart scooters who need a reliable replacement for failed or inconsistent controllers and throttles. It's a good choice for DIY mechanics, repair shops, and restorers seeking direct-fit electrical components tailored to the 36V Razor platform. If you're experiencing sluggish acceleration, intermittent power, or physical damage to the original throttle or controller, this kit provides the matching parts to restore proper electrical function without complex modification.