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Regular price $253.99
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Alternator 0124-555-017 11170321 for VOLVO D4D for VOLVO EC135B, EC140B, EC140C EC210 290   Part No.:0124-555-017, 11170321   Specification:Voltage: 24VCurrent: 100APulley: 10PK49   Application: ...
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MAKE TYPE MODEL ENGINE Hitachi Excavator EX200-5   Hitachi Excavator ZAX120-5   Isuzu     6QA1 Isuzu     6SD1 Isuzu     6WQ1 Isuzu     6...
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Regular price $253.99
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Alternator 0124555009 0124555017 0124555020 0986046290 4629 11170134 11170321 20409228 20849349 20849350 for VOLVO D4D D12D for VOLVO EC360   Part No.:0124555009, 0124555017, 0124555020, 0986046290...
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Regular price $212.99
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Regular price $218.99
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MAKE MODEL ENGINE YEAR Allis Chalmers 685   1980-1986 Allis Chalmers 945 25000 1980-1986 Allis Chalmers 6138   1980-1986 Atlas Copco XAMS355 Cummins C8 1997 Atlas Copco XAS400 Cummin...
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Regular price $222.99
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Regular price $262.99
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MAKE TYPE MODEL ENGINE KOMATSU Excavator PC200-7   KOMATSU Excavator PC220-7   KOMATSU Excavator PC220-8   CUMMINS     6D107 CUMMINS     6D102
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Regular price $264.99
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Regular price $377.99
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BRAND ENGINE YEAR MERCURY DTS Optimax 200CXL 05-09 MERCURY DTS Optimax 200L 05-09 MERCURY DTS Optimax 200XL 05-09 MERCURY DTS Optimax 225CXL 04-09 MERCURY DTS Optimax 225CXXL 04-09 ...
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NEW ALTERNATOR REPLACEMENT 37300-2E800, 373002E800, 2619086 FOR HYUNDAI ELANTRA 1.8L 14 15 16 2014-2016   Part No..:37300-2E800, 373002E800, 2619086 Specifications:Design: Ir/IfVoltage: 12 VoltA...
Regular price $277.01
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SPECIFICATIONS: 136 Amp/12 Volt, CW, 6-Groove Pulley DESIGN: ER/IF VOLTAGE: 12 AMPERAGE: 136 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated This list is a sample of all the compatible car...
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SPECIFICATIONS: 115 Amp/12 Volt, CW, 6-Groove Decoupler Pulley DESIGN: ER/IF VOLTAGE: 12 AMPERAGE: 115 ROTATION: CW PULLEY CLASS: SD6 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEME...
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Regular price $202.99
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Regular price $288.99
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New Mini Style Alternator 100211-4540 Replacement For GM Chevy BBC SBC Race Cars, Street Rod, Hot Rod 1-Wire One Wire Hookup 35 Amps Lightweight   Part NO.:100211-4540, 12187, 12187SEN, 12187-SEN...
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SPECIFICATIONS: 105 Amp/12 Volt, CW, 6-Groove Pulley, 07:00 Plug Clock DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 105 ROTATION: CW PULLEY CLASS: S6 NOTE 1: 337 Plug Code NOTE 2: Neg. Grd. NOTE 3: ...
Regular price $219.84
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SPECIFICATIONS: 90 Amp/12 Volt, CW, 6-Groove Pulley DESIGN: ED/IF VOLTAGE: 12 AMPERAGE: 90 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated This list is a sample of all the compatib...
Regular price $180.12
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SPECIFICATIONS: 102 Amp/12 Volt, CW, 6-Groove Pulley, 05:00 Plug Clock DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 102 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated FEATURE 2: OE performan...
Regular price $406.38
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SPECIFICATIONS: 190 Amp/12 Volt, CW, 7-Groove Clutch Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 190 ROTATION: CW PULLEY CLASS: SC7 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT ...
Regular price $211.40
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SPECIFICATIONS: 100 Amp/12 Volt, CW, 6-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 100 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR NISS...
Regular price $264.68
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SPECIFICATIONS: 140 Amp/12 Volt, CW, 6-Groove Pulley DESIGN: ER/IF VOLTAGE: 12 AMPERAGE: 140 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated This list is a sample of all the compat...
Regular price $206.60
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SPECIFICATIONS: 140 Amp/12 Volt, CW, 6-Groove/62mm OD Pulley, 11:00 Plug Clock DESIGN: IR/EF VOLTAGE: 12 AMPERAGE: 140 ROTATION: CW PULLEY CLASS: S6 NOTE 1: 309 Plug Code NOTE 2: Neg. Grd. ...
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New Alternator 31400-65J20 3140065J20 A2TJ0091 For 2006-2008 06 07 08 Suzuki Grand Vitara 2.7L 2.7 V6    Part NO.:31400-65J20, 3140065J20, A2TJ0091   Specifications:DESIGN: IR/IFVOLTAGE: 12VAMP...
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Regular price $275.99
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Regular price $391.99
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New Alternator Replacement For Hyster Replacement Forklift with Perkins Engine 2871A166 Z871A166 436547 54022662 54022664 IA0717 111361 63322664 MAN767 MG86, ALU0036, 40030012, 40030026, IA0717   ...
Regular price $266.37
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New Alternator Replacement For Toyota Replacement Fork Lift Truck 5P 2F 4P 5R F Engine FG Series 4FG 3FG 27020-13020, 27020-21010, 27020-21011, 27020-24031, 27020-24060   Part No.:27020-13020, 2702...

The alternator is the main power source for the diesel engine during normal operation, it supplies power to the electricity-using equipment and charges the battery. The diesel alternator is mounted on the cylinder block of the engine. When the diesel engine is working, the rotor of the diesel alternator is rotated by the belt, and the belt tightness can be adjusted by the adjustment lever.

MyMROmarts is a professional aftermarket alternator shop, and our diesel engine alternators for sale have a cheap price but high performance. Buy a new aftermarket alternator at a low cost for your heavy duty trucks, tractors, forklifts, and other heavy equipment. MyMROmarts also offers aftermarket diesel engine alternators of various brands, such as Kubota, Cummins, John Deere, CAT Caterpillar, Perkin, Yanmar, etc. If you have any problems with our diesel engine alternators, please feel free to contact us.

What Is an Aftermarket Alternator?

A diesel engine alternator is an important component of a charging system, responsible for converting mechanical energy into electrical energy to power the equipment's electrical system and charge the battery. The parts of an alternator include brushes, pulleys, fans, rotors, stators, rectifiers, voltage regulators, etc.
An aftermarket alternator is a replacement part that is not manufactured by the vehicle's original equipment manufacturer. MyMROmarts aftermarket alternators are designed to match the original part's specifications, providing your equipment with better durability and higher power output.

How Does an Alternator Work?

The working principle of an alternator is to convert the energy generated by diesel combustion into mechanical energy through an internal combustion engine. The mechanical energy is then converted into electrical energy through a generator.
As long as you have DIY ability, when the engine fails, you can also consider replacing it yourself. Understanding the working principle of alternator can help you replace the broken electric alternator. As a professional aftermarket alternator online shop, the engine alternators we offer are of superior quality and affordable prices. Welcome to choose the high-performance alternator that suits your needs here and inject new power into your heavy duty equipment.

Signs of a Bad Alternator

Here is a brief list of some signs of a bad alternator:

  • Warning Light on the Dashboard
  • Dimming or Flickering Lights
  • Weak or Dead Battery
  • Strange Noises
  • Burning Smell
  • Difficulty Starting the Equipment
  • Electrical Failures

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