Performance Parts / Replacement Parts

The Starting & Charging system consists of the battery, starter, alternator, cables, wiring, and related components like relays, solenoids, and voltage regulators. The battery provides power to the starter and ignition system when you turn the key. The starter turns the crankshaft so the engine builds enough compression to start, and the alternator recharges the battery and powers the vehicle’s electrical accessories when the engine is running.

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Batteries are electrochemical devices in which a chemical reaction between two dissimilar materials creates a voltage. A number of positive and negative plates are immersed in an electrolyte solution of water and sulfuric acid. The positive plates are coated with the active material lead dioxide (PbO2), and the negative plates with sponge lead (Pb). The positive and negative plates form a cell element, and there are 6 cell elements in a 12-volt battery.

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    • (5 reviews)
      # sp9140
      Starter by Remy®. The starters by Remy feature the most compact design in the industry. These components are smaller and lighter providing less friction, better reliability, and greater performance. Install the Remy starter and get...
      Features the most compact design on the marketEnsures less friction and excellent performance
      $26.05 - $712.30
    • (4 reviews)
      # sp2469
      Alternator by TYC®. The alternator is one of the parts you want to function properly, otherwise all the comforts given by the electronic components won't be available anymore. And when you need a replacement, TYC will gladly give...
      $85.16 - $246.96
    • (7 reviews)
      # sp6329
      Edge™ AGM Battery by Exide®. Exide Edge AGM batteries are designed to maximize energy capacity for today's on-the-go drivers. The Edge's lasting energy protects against battery failure, helping vehicle batteries stay strong and...
      17X More Energy for Everything like repeated use of technology and shuttle drivingBecause the plates are compressed in rows, the battery uses its total volume to provide greater energy capacity
      $144.76 - $173.11
    • (1 review)
      # sp10731
      GM Original Equipment™ Starter by ACDelco®. When you need to match Original Equipment specifications in a replacement starter for your GM vehicle, look to ACDelco. Our GM Original Equipment line includes brand-new, and...
      New units are manufactured under the guidelines of ISO Quality Standards to ensure consistent qualityAll components are 100% new to provide improved performance and long-life reliability
      $75.85 - $319.62
    • (0 reviews)
      # sp7748
      Remanufactured Drive Motor Battery Pack by Cardone®. When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates...
      Each battery unit is 100% tested to ensure optimal performanceElectronic Control Unit is renewed and 100% tested to ensure battery does not fail without warning
      $1,102.17 - $2,533.26
    • (2 reviews)
      # sp1073
      Alternator by Bosch®. If all you hear when starting your car is a click-click sound, chances are your alternator has died on you. Bosch Alternator is built especially for extremes of heat and cold; it features more new parts and is...
      Ensures cranking and starting performance under all temperature extremes100% full-load tested – meets or exceeds OE manufacturers' torque, amperage draw and RPM standards
      $32.23 - $1,039.96
    • (5 reviews)
      # sp2470
      Starter by TYC®. As soon as your starter motor fails, you can feel it right away. Well, if your starter motor is damaged, you no longer have to pay the high dealer price for a replacement because TYC will give you the same quality...
      $54.30 - $137.63
    • (5 reviews)
      # sp4663
      Alternator by Denso®. Contemporary cars employ dozens of sophisticated electronic systems from bumper to bumper, placing heavy demands on the charging system. The alternator is no place to cut corners. Denso First Time Fit™...
      Bearing 100% tested to OE standards and repacked with OEM grade lubricantStator Insulation tested to 600 volts
      $24.82 - $603.80
    • (4 reviews)
      # sp16843
      Remanufactured Starter by Quality-Built®. Get professional installer quality at a DIY price with a Quality-Built starter. These starters are manufactured under strict QS-9000 quality guidelines, the highest quality standard...
      Designed specifically for the high demands of professional installersSelect components and advanced manufacturing techniques provide unparalleled performance and reliability
      $9.80 - $339.31
    • (11 reviews)
      # sp1452
      Starter by Quality-Built®. Get professional installer quality at a DIY price with a Quality Built starter. These starters are manufactured under strict QS-9000 quality guidelines, the highest quality standard achievable for...
      Designed specifically for the high demands of professional installersSelect components and advanced manufacturing techniques provide unparalleled performance and reliability
      $15.50 - $233.56
    • (0 reviews)
      # sp10678
      GM Original Equipment™ Alternator by ACDelco®. When you need to match Original Equipment specifications in a replacement Alternator for your GM vehicle, look to ACDelco. Our GM Original Equipment line includes brand-new, and...
      New units are manufactured under the guidelines of ISO Quality Standards to ensure consistent qualityAll components are 100% new to provide improved performance and long-life reliability
      $93.89 - $421.67
    • (0 reviews)
      # sp6956
      Battery Tray and Hold Down Kit by Dorman®. More like a kit than a single part, Dorman’s Battery Trays conveniently include the tray, hold- down, bolt, and washer. They are suitable for a range of applications.
      Direct replacement for a proper fit every timeIncludes all necessary mounting hardware
      $17.11
    • (0 reviews)
      # sp18221
      AGM Battery by Shuriken®. Shuriken Power Cells are the solution for powering your high-power car audio installation. These AGM batteries will never leak electrolyte and can be mounted anywhere in any position, even upside down....
      Compact sizeAbsorbed glass mat technology
      $248.22 - $385.47
    • (8 reviews)
      # sp9139
      Alternator by Remy®. The alternators by Remy provide significant fuel efficiency and the lowest noise available on the market today. They feature patented winding technology which helps them boast the lowest mass in the industry,...
      Features a refined designPatented winding technology
      $24.86 - $628.56
    • (0 reviews)
      # sp10800
      Professional™ Voltage Regulator by ACDelco®. Get the proper voltage to your vehicle’s critical systems with ACDelco Professional Voltage Regulators. Built as the ideal replacement part for your worn Original Equipment, ACDelco...
      Outstanding radio noise control for better performance.Delivers needed system voltage and provides the proper fit, form and function to let your vehicle run the way it was designed.
      $31.99 - $62.87
    • (0 reviews)
      # sp21183
      Starter Relay by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $12.31 - $28.14
    • (0 reviews)
      # sp15365
      Extreme Battery by Odyssey®. Some batteries offer enormous cranking power. Others, deep cycle reserve power. Unbeatable Odyssey® Extreme Series™ batteries do both. Even at very low temperatures, Odyssey Extreme Series batteries...
      70% longer cycle life than conventional deep cycle batteries - high stable voltage for longer periods of timeCan be stored on open circuit (nothing connected to the terminals) without recharging for up to 2 years or 12.00V, whichever occurs first
      $135.56 - $367.22
    • (0 reviews)
      # sp94410
      S5 Battery by Bosch®. The Bosch S5 Car Battery is well suited for premium car segments including upper-class domestic, imported segments & vehicles with a high number of electrical consumers. The S5 Battery delivers dependable...
      100% maintenance-freeDependable battery power in accordance with OEM requirements
      $85.00 - $265.72
    • (2 reviews)
      # sp19859
      Remanufactured Drive Motor Battery Pack by Dorman®. Hybrid Battery Packs assist the engine by providing power to maximize fuel economy for Hybrid vehicles. All of Dorman’s Hybrid Battery Packs are plug and play, requiring no...
      3 year unlimited mileage warranty (Does not apply to fleet vehicles see fleet warranty coverage for details)Upgraded with new higher capacity cells to increase longevity of the battery
      $1,397.95 - $4,058.95
    • (0 reviews)
      # sp13705
      Remanufactured Drive Motor Inverter by Dorman®. Dorman has all the components needed for a complete repair. Quickly and easily installed, it eliminates the clunking noise that may result when this part fails, while restoring...
      Easy to installDirect replacement for a proper fit
      $1,033.95 - $1,093.95
    • (0 reviews)
      # sp4038
      Remanufactured Hybrid Battery Service Plug by Dorman®. Hybrid Battery Service Plugs are safety plugs that ensure voltage is not transmitted when plug is removed. All our Hybrid Battery Service Plugs are manufactured from...
      Upgraded materials to superior nickel plated buss bar to reduce corrosionRedesigned cells to eliminate leaking
      $16.84 - $30.08
    • (0 reviews)
      # mpn358578631
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amp 3,500A, CA: 670, Ah: 70, 2500W/4000W. M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $309.99
    • (0 reviews)
      # mpn2084064141
      D-Series AGM Battery by XS Power®. Max Amps 3100 A, CA: 815, Ah: 60, up to 2000W/3000W. M6 Terminal Hardware Included. The XS Power D4800 are our direct fit, OEM replacement for most European models and are available for shipping...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $289.99
    • (0 reviews)
      # mpn358578633
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amp 5,000A, CA: 1360, Ah: 110, 4000W/5000W+This battery has a reinforced plastic protective case. M6 Terminal Hardware Included. These XS Power AGM batteries are some of...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $399.99
    • (0 reviews)
      # mpn2084064047
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amp 3,100A, CA: 745 Ah: 60, 2000W/3000WThis battery has a reinforced plastic protective caseRevers polarity. M6 Terminal Hardware Included. These XS Power AGM batteries...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $249.99
    • (0 reviews)
      # mpn2084064142
      D-Series AGM Battery by XS Power®. Max Amps 4000 A, CA: 1075, Ah: 80, up to 3000W/4000W. M6 Terminal Hardware Included. The XS Power D4900 are our direct fit, OEM replacement for most European models and are available for shipping...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $349.99
    • (0 reviews)
      # mpn358578635
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amp 3,100A, CA: 745 Ah: 60, 2000W/3000WThis battery has a reinforced plastic protective caseStandard polarity. M6 Terminal Hardware Included. These XS Power AGM batteries...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $249.99
    • (0 reviews)
      # mpn2084064140
      D-Series AGM Battery by XS Power®. Max Amps 2900 A, CA: 745, Ah: 50, up to 2000W/3000W. M6 Terminal Hardware Included. The XS Power D4700 are our direct fit, OEM replacement for most European models and are available for shipping...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $249.99
    • (0 reviews)
      # mpn358578632
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amp 4,300A, CA: 1170, Ah: 100, 3500W/4500WThis battery has a reinforced plastic protective case. M6 Terminal Hardware Included. These XS Power AGM batteries are some of...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $339.99
    • (0 reviews)
      # mpn2084064049
      D-Series AGM Battery by XS Power®. High Output Battery. Max Amps 3,900A, CA: 1070, Ah: 75, 3000W/4000W. M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $319.99
    • (0 reviews)
      # mpn2084064146
      S-Series AGM Battery by XS Power®. Max Amps 3,300A CA: 1,000A. Short Brass Post Adaptors M6 and M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the market....
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $299.99
    • (0 reviews)
      # mpn2084064031
      XP-Series AGM Battery by XS Power®. MAX Amps – 3000. RC – 240min. Ah – 120. M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the market. Independent...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $319.99
    • (0 reviews)
      # mpn2084064035
      XP-Series AGM Battery by XS Power®. MAX Amps – 2000. RC – 150min. Ah – 80. M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the market. Independent test...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $249.99
    • (0 reviews)
      # mpn2084064043
      XP-Series AGM Battery by XS Power®. MAX Amps – 2500. RC – 185min. Ah – 100. M6 Terminal Hardware Included. These XS Power AGM batteries are some of the lightest 12, 14, and 16 V racing batteries on the market. Independent...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $289.99
    • (0 reviews)
      # sp10775
      Professional™ Starter by ACDelco®. Thoroughly tested and backed by competitive warranty coverage, ACDelco Professional NEW Starters – for GM and non-GM vehicles – are manufactured using ISO Quality Standards. ACDelco NEW...
      New units are manufactured under the guidelines of ISO Quality Standards to ensure consistent quality.All components are 100% new to provide improved performance and long-life reliability.
      $34.87 - $230.19
    • (0 reviews)
      # sp16922
      Starter by Motorcraft®. Motorcraft starter are designed for maximum performance and durability. Designed utilizing the latest technology, this starters by Motorcraft features premium quality and will perform better than advertised....
      Direct OEM replacementMeets strict Ford Motor Company standards
      $60.36 - $606.07
    • (2 reviews)
      # sp1072
      Starter by Bosch®. Whether new or remanufactured, Bosch starters are 100% factory tested to ensure reliable cranking and starting performance under the most extreme operating conditions. Built for precision fit, Bosch starters are...
      Designed to withstand the harshest environmentsProvides balanced high speed torque for maximum performance and dependability
      $36.50 - $682.13
    • (0 reviews)
      # mpn1032506687
      Starter by URO Parts®. This superior electrical part by URO is a great alternative solution to the costly factory equipment that will help you restore smooth and efficient operation of your vehicle. Thoroughly designed and...
      Designed to replace your worn out or cracked factory partHelps to restore proper operation of your vehicle
      $127.94
    • (0 reviews)
      # mpn1032506544
      Starter by URO Parts®. Type: Gear Reduction. Rated Power: 1.7 kW. With 9-Tooth Pinion Gear. This superior electrical part by URO is a great alternative solution to the costly factory equipment that will help you restore smooth and...
      Designed to replace your worn out or cracked factory partHelps to restore proper operation of your vehicle
      $125.05
    • (0 reviews)
      # sp4963
      Starter by Auto 7®. The electrical system is the nerve center of your vehicle. Some common pitfalls of a faulty electrical system include no or slow cranking, dim lights, or troubles with accessories. Auto 7 has the quality parts...
      Original equipment quality parts for Hyundai, KIA and GM Daewoo vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $33.50 - $242.47
    • (0 reviews)
      # sp16029
      Starter by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $102.17 - $259.13
    • (4 reviews)
      # sp4662
      Starter Motor by Denso®. The original DENSO gear-reduction starter is an industry benchmark, so rugged and powerful that it is often adapted for racing use. DENSO remanufactured starters are subjected to a rigorous test and...
      High-voltage tested armature and field coils to ensure reliable performancePremium copper terminals to ensure a clean source of electrical current
      $34.28 - $345.73
    • (0 reviews)
      # sp102325
      Starter by Hitachi®. If you're looking for reliable yet affordable boat parts, Hitachi has you covered. Manufactured using advanced technologies, this product provides years of worry-free performance. It will meet your needs and...
      Manufactured from premium materialsDesigned to provide years of reliable service
      $74.98 - $386.69
    • (0 reviews)
      # sp3785
      Starter by Mishimoto®. The Mishimoto replacement starters are made specifically for your car. A common problem with the factory starters is that they often go bad and need replacing. It is extremely difficult to find this...
      Direct OEM fitHelps you to get the most out of your vehicle
      $198.75
    • (0 reviews)
      # sp21075
      Remanufactured Starter by Mitsubishi Electric®. Do you hear nothing but "click, click" when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $104.85 - $354.05
    • (0 reviews)
      # mpn2187171
      Remanufactured Starter by Mopar®. Do you hear nothing but "click, click" when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $121.55
    • (0 reviews)
      # sp19460
      12V Starter by Omix-ADA®. Direct Fit. 5 Year Limited Warranty. The starter is an electric motor that turns the crankshaft during the engine starting process. When the ignition key is turned, power goes to the starter solenoid,...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $113.48 - $267.75
    • (0 reviews)
      # sp13021
      Starter by Original Equipment®. Do you hear nothing but “click, click” when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $228.99 - $296.21
    • (0 reviews)
      # sp9932
      Starter by BTP®. This premium part by BTP helps the starting and charging system of your vehicle to provide the energy needed for the engine to start as well as maintain all its electrical elements from the headlights to the...
      Engineered to help your starting and charging system operate at its maximumMade from superior materials
      $57.65 - $143.76
    • (0 reviews)
      # sp86487
      Starter by Replace®. Designed utilizing the latest technology, this product by Replace features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $54.04 - $322.46
    • (0 reviews)
      # sp12281
      Starter by USA Industries®. This premium product is engineered with attention to detail to ensure reliable engine starting. Made from premium materials for outstanding quality and worry-free performance. This USA Industries starter...
      Designed to provide optimum engine startingMade from superior materials
      $13.26 - $132.94
    • (0 reviews)
      # sp9039
      Starter by Valeo®. 100% new Valeo starters to exceed your expectations: quick start of the engine, long life performance even during winter. Valeo starters are designed and tested in stringent conditions that are established by OE...
      Designed to produce maximum charge output under all conditionsProvides improved efficiency in electrical various demands
      $100.68 - $371.54
    • (3 reviews)
      # sp1774
      Starter by World Source One®. Do you hear nothing but “click, click” when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $68.57 - $114.54
    • (0 reviews)
      # mpn469957655
      Starter by Merchant Automotive®. Designed utilizing the latest technology, this product by Merchant Automotive features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      High quality at an affordable priceExpertly made from premium materials
      $267.80
    • (0 reviews)
      # mpn2875240628
      Starter by WAI Global®. Designed utilizing the latest technology, this product by WAI Global features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $103.24
    • (0 reviews)
      # mpn2875240630
      Starter by WAI Global®. Designed utilizing the latest technology, this product by WAI Global features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $86.82
    • (0 reviews)
      # sp10754
      Professional™ Alternator by ACDelco®. Thoroughly tested and backed by competitive warranty coverage, ACDelco Professional NEW Alternators – for GM and non-GM vehicles – are manufactured using ISO Quality Standards. ACDelco...
      New units are manufactured under the guidelines of ISO Quality Standards to ensure consistent quality.All components are 100% new to provide improved performance and long-life reliability.
      $35.99 - $267.03
    • (0 reviews)
      # sp16925
      Alternator by Motorcraft®. To help meet your customers’ needs, Motorcraft alternators are available as new or remanufactured units.
      Dual internal cooling fans provide reliability during extreme temperaturesSlip rings and brushes are designed for reduced wear to help provide longer service life
      $68.21 - $1,097.57
    • (0 reviews)
      # sp49095
      Retail Alternator by Motorcraft®. To help meet your customers’ needs, Motorcraft alternators are available as new or remanufactured units.
      Dual internal cooling fans provide reliability during extreme temperaturesSlip rings and brushes are designed for reduced wear to help provide longer service life
      $68.21 - $547.45
    • (0 reviews)
      # mpn2348593
      Alternator by Allmakes 4x4®. Do you hear nothing but "click, click" when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas running out...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $197.98




    In conventional flooded lead acid batteries, which includes maintenance-free batteries, the electrolyte is in liquid form. If the battery is damaged and leaks, the sulfuric acid in the electrolyte can cause serious vehicle damage and burns if it comes in contact with your body. Gel cell and AGM (Absorbed Glass Mat) batteries are superior alternatives. In the gel cell battery, silica is added to the electrolyte to form a gel-type material, while in AGM batteries, the electrolyte is held in matting that is akin to a sponge. If the case cracks on a gel cell or AGM battery, no electrolyte will leak out.

    The starter motor converts electrical energy into mechanical energy. The starter circuit includes the battery, starter, and cables, which are activated by a starter control circuit consisting of the ignition switch, starter relay, solenoid, and wiring. When you turn the ignition switch, the relay energizes the starter solenoid, which sends power to the starter motor. The starter drive meshes with the flywheel/flexplate teeth before the starter motor begins to turn. Most starter drives are the overrunning clutch type, which only applies force in one direction, so the engine cannot apply torque to the starter.

    A belt from the crankshaft drives the alternator, and it uses this mechanical energy to create electricity. The electricity is produced when the belt spins the rotor, creating a magnetic field that induces a voltage in the stator windings. Alternators produce AC current, which is rectified by diodes and transformed into the DC current that recharges the battery and powers the electrical system. The voltage output of the alternator must be controlled. This is done by varying the field current. On older vehicles this was done by a separate voltage regulator, but on most new vehicles regulator function is part of the ECM.

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    Starters, Alternators & Batteries Reviews

    Average rating:  5  5 - 193 reviews
      /  Read All Starting & Charging Reviews
    3.5 of 5
    Parts Are Great, Company Needs Work
    OE replacement that worked perfectly. Fit in and no problems. Been a tech for ten years so not a hard install. Core support removal and some finesse.
    DPosted by Dustin (Portland, OR) / May 10, 2017
    2002 Kia Sedona
    Was this review helpful for you? Yes
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