Thunderhawk Performance has just released this new Voltage Regulator Guard for the 2015 RZR 900 models to protect the voltage regulator, main fuse block & vehicle wiring harness from sticks & rocks on the trail, as well as from mud thrown by the rear tire. Look under your RZR, just below the driver seat, and you’ll see the RZR’s main electrical system hanging down, exposed, under the RZR.
Voltage regulator failures are actually somewhat common on the RZR. This is primarily due to the build-up of mud on the regulator which does not allow the finned aluminum regulator body to dissipate heat as it was designed, leading to overheating and failure of the regulator. Mud can also lead to corrosion problems in the fuse block & harness, and a stick kicked-up under the RZR could easily damage the exposed wiring harness.
Thunderhawk Performance designed this Voltage Regulator Guard to provide maximum strength, protection from mud & debris and also to incorporate airflow vents for voltage regulator cooling. Thunderhawk's one-piece design, 1/8” thick aircraft-grade aluminum construction and mounting bolts that are not exposed to trail contact provide the strength and protection necessary even when this guard is sliding over an obstacle on the trail. The rear (vertical) section of the Thunderhawk Regulator Guard provides protection from mud, rocks and debris thrown by the rear tire, with side-vents to allow warm air to escape while fitting close to the plastics to eliminate openings that can actually "scoop" mud and debris thrown from the tire. The bottom (horizontal) section is vented to allow airflow into the regulator, while protecting the electrical components from rocks, sticks and heavy mud to which they would otherwise be exposed.
Here's a link for more details and additional photos of this new product on our website: Thunderhawk Voltage Regulator & Electrical Guard for 2015 RZR 900's