SPI Voltage Regulators
SPI SM01246 Snowmobile Voltage Regulator Rectifier Arctic Cat OEM 0630-230 0630-321
SPI Voltage Regulators: OEM-Quality Charging System Protection for Powersports
When a snowmobile, ATV, or powersports machine's electrical system starts misbehaving — rough starts, a battery that won't hold a charge, or erratic power delivery — the culprit is often a failing voltage regulator. SPI (Sports Parts Inc.) has built a well-earned reputation as a go-to source for OEM-quality replacement voltage regulators across a wide range of powersports platforms, making it easier than ever to restore reliable charging performance without having to track down pricey factory parts.
What SPI Voltage Regulators Do
Voltage regulators are the gatekeepers of your vehicle's charging system. These essential components control the electrical output from the alternator or stator, ensuring it stays within safe limits to properly charge the battery and power onboard electronics. Too much voltage damages batteries and sensitive accessories; too little leaves your machine starved for power. A quality replacement regulator keeps everything in balance — and SPI delivers exactly that.
Broad Powersports Coverage
Sports Parts Inc. manufactures OEM-quality replacement parts engineered to meet or exceed industry standards, with strict quality control from start to finish. Their voltage regulator lineup spans the most popular powersports brands and model years, including:
- Ski-Doo Snowmobiles — SPI offers regulators such as the SM-01237 and part number 81-618, replacing multiple Ski-Doo OEM numbers and fitting many 1996–2002 Ski-Doo snowmobiles.
- Polaris Snowmobiles — Models like the SM-01116 are direct replacements for Polaris, replacing OEM numbers 4012930, 4012476, and 4011731, and manufactured directly by SPI.
- Arctic Cat Snowmobiles — The SM-01133 targets Arctic Cat machines, fitting models including the Mountain Cat 600 EFI, ZR 440 Sno Pro, ZR 600, ZR 600 EFI, and ZRT 600, among others.
Engineered for Seamless Integration
SPI products are manufactured for high-performance, long life, and individual components are engineered to interchange with original parts to give you the best possible parts for seamless integration and maximize your riding experience. For powersports enthusiasts, that means a straightforward plug-and-play installation rather than wrestling with fitment issues — a critical advantage when you're trying to get back on the trail quickly.
SPI's voltage regulators are direct OEM cross-references, meaning each unit is matched to specific make, model, and year combinations. This attention to precise fitment reduces the guesswork that often comes with sourcing electrical replacement parts for older or niche powersports machines, particularly vintage snowmobiles where factory parts have long been discontinued.
A Trusted Name in Powersports Electrical Parts
Sports Parts Inc. offers industry-leading snowmobile, motorcycle, and ATV structural parts and accessories , and their electrical components line reflects the same commitment to quality. Whether you ride a Ski-Doo Grand Touring, a Polaris RMK, or an Arctic Cat ZR, SPI's voltage regulator catalog is designed to have you covered with a dependable, correctly spec'd replacement part.
Explore the full SPI brand catalog for additional powersports components, or browse all voltage regulators to find the right fit for your machine.