M MATI Left Handlebar Switch Assembly for Polaris ATVs — Replaces OEM 4011835, Restores RUN/OFF & Hi/Lo Headlight

M MATI Left handlebar switch assembly replaces OEM part 4011835 and restores run/off, headlight hi/lo/off and speedo/reverse override functions on compatible Polaris ATVs.

This replacement left handlebar switch assembly from M MATI is designed as a direct-fit option for a range of Polaris utility and sport ATVs, including Hawkeye 325, Magnum 330, Trail Boss 330, Xplorer 250, Scrambler 400/500/850, Sportsman 400/450/500/550/570 and other models that used factory parts 4011835, 4010591, 4010560, 2010340, 4010592 or 4011385. Built to reproduce the control layout riders expect, it returns critical functions to the left grip: the keyed RUN/OFF position, multi-mode headlight control (HI/LO/OFF) and the speedometer/reverse override switch. The unit is offered with M MATI service support should you encounter a defect within the first year.

How does this switch assembly match my Polaris ATV?

The M MATI assembly is engineered to mirror the electrical connections and mounting footprint of the listed OEM part numbers, simplifying installation. It is a replacement for the same left-handlebar control cluster used on many Polaris models from the 250–850cc range.

• Replaces manufacturer part #4011835 and compatible numbers listed in the product details.
• Same button and lever positions for intuitive operation without rewiring.
• Designed to align with standard Polaris bolt pattern and connector shapes.

What functions will I regain after installing this switch?

Installing this assembly restores the essential left-hand controls riders use every day. It provides the RUN/OFF engine control, full headlight mode selection and the speedo/reverse override—functions necessary for safe operation and vehicle diagnostics.

• Engine RUN/OFF selector with correct locking position (cannot push up to start).
• Headlight selector offering HI, LO and OFF settings for visibility control.
• Speedometer/reverse override switch to control instrument behavior when needed.

How difficult is it to install and what should I prepare?

Installation is straightforward for someone with basic ATV maintenance skills and simple hand tools. Expect to remove the left plastic handlebar shroud, unplug the OEM connector, swap the switch assembly and reassemble the trim.

• Tools typically required: small socket set, Phillips/flat screwdrivers, and needle-nose pliers.
• Turn off battery power and note connector orientation before unplugging.
• Allow 20–45 minutes for removal and fitment on most models.

What should I know about warranty and service?

M MATI includes a one-year product service policy for issues that arise under normal use. If you encounter a defect or functional problem within the warranty period, contact the seller with your order details for assistance and possible replacement.

• One-year support included; keep proof of purchase for claims.
• Service typically covers functional failure, not damage from improper installation or impact.
• Contact the seller for troubleshooting steps before returning a part.

Who is this for: This replacement left handlebar switch assembly is intended for Polaris ATV owners, mechanics and restoration specialists who need a reliable, OEM-compatible control cluster for mid- to high-displacement models listed above. It’s suited to riders restoring aged equipment, replacing a weather-damaged or nonfunctional switch, or those maintaining fleet vehicles and utility ATVs. Choose this M MATI unit when you need a direct-fit replacement that restores original control functions and keeps your ATV operating safely and predictably.