Buick Gran Sport Alternator Parts

The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Designed to meet or exceed OE quality, premium-quality bearings from National are manufactured to exacting standards to deliver lasting performance and extended bearing life.

Manufactured with premium materials, National needle bearings are designed and engineered to meet OE specifications.

The 150 Amp Alternator by Powermaster is engineered to meet the demands of high-performance racing, whether you’re into drag racing, circle track, asphalt, or dirt. Designed for versatility, it offers one or three-wire operation and delivers an impressive 70 amperes at idle, ensuring reliable power when you need it most. Featuring a gold battery post and a proof-of-performance tag, this alternator is a bolt-on upgrade for early model vehicles, combining modern efficiency with classic compatibility. Powermaster provides the largest selection of fans, pulleys, nose cones, and baffle plates in the industry, with an optional custom high-volume fan for enhanced cooling. Built for durability and peak performance, this alternator is the ultimate choice for racers who demand reliability and power on the track.

Elevate your vehicle’s performance with this 150 Amp Alternator from Powermaster, designed for street applications including Muscle Cars, Classics, Street Rods, and daily drivers. Engineered with a 12si style and a smooth die-cast housing featuring a teardrop design, this alternator delivers both functionality and a sleek, custom billet look at an affordable price. Its high-ampere GM one-wire setup ensures efficient power delivery, while the smooth back with special Powermaster vents enhances pull-through cooling for optimal performance. The gold battery post and Proof of Performance tag add a touch of reliability and quality assurance. With the largest selection of fans, pulleys, nose cones, and baffle plates in the industry, plus an optional custom high-volume fan, this alternator offers unmatched versatility and customization. Whether you’re upgrading for style or performance, this unit combines durability, efficiency, and value to meet your automotive needs.

Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.

Elevate your vehicle’s performance with this high-output alternator, designed to meet the demands of drag racing, circle track, asphalt, or dirt. Featuring the Ad244 style, it delivers a superior 140-amp output at idle, ensuring consistent power when you need it most. Built with a heavy-duty regulator and rectifier, high-temperature windings, and dual internal fans, this alternator guarantees exceptional efficiency and cooling under extreme conditions. Its late-model compatibility with remote voltage control ensures seamless integration with modern vehicles, while the proof of performance tag provides confidence in its reliability. Whether you’re on the track or off-road, this alternator is engineered for durability and peak performance.

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.