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Regular price $189.22
Sale price $189.22
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SPECIFICATIONS: 120 Amp/12 Volt, CW, 7-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 120 ROTATION: CW PULLEY CLASS: S7 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR LAND...
Regular price $183.10
Sale price $183.10
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SPECIFICATIONS: 70 Amp/12 Volt, CW, 1-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 70 ROTATION: CW PULLEY CLASS: V1 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR MERCRU...
Regular price $192.06
Sale price $192.06
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Mercruiser Model 350 Mag MPI (Gen +) All (99-On) GM 5.7L - 350ci - 8cyl Delco - #OL304500-OM299999Mercruiser Model 350 Mag MPI Alpha & Bravo All (01-On) GM 5.7L - 350ci - 8cyl Delco (Korean) ...
Regular price $156.90
Sale price $156.90
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SPECIFICATIONS: 105 Amp/12 Volt, CW, 6-Groove Pulley, 07:00 Plug Clock DESIGN: IR/EF VOLTAGE: 12 AMPERAGE: 105 ROTATION: CW PULLEY CLASS: S6 NOTE 2: Neg. Grd. FEATURE 1: 100% Top-rated FEAT...
Regular price $245.47
Sale price $245.47
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SPECIFICATIONS: 50 Amp/12 Volt, CW, Neg. Grd., 1-Groove PulleyDESIGN: IR/IFVOLTAGE: 12AMPERAGE: 50ROTATION: CWPULLEY CLASS: V1NOTE 1: 312 Plug Code   FEATURE: 100% Top-ratedThis list is a sample of...
30% Off
Regular price $673.99
Sale price $673.99
Regular price $957.99
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MAKE TYPE MODEL ENGINE YEAR Freightliner Truck Argosy L6 10.8L 00-03 Freightliner Truck Argosy L6 11.1L 00-06 Freightliner Truck Argosy L6 12.7L 03-06 Fr...
Regular price $175.25
Sale price $175.25
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SPECIFICATIONS: 105 Amp/12 Volt, CW, 6-Groove/62mm OD Pulley, 11:00 Plug Clock DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 105 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated FEATURE 2: OE p...
Regular price $162.96
Sale price $162.96
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SPECIFICATIONS: 65 Amp/12 Volt, CW, w/o Pulley DESIGN: IR/EF VOLTAGE: 12 AMPERAGE: 65 ROTATION: CW PULLEY CLASS: w/o Pulley FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR JOH...
Regular price $184.46
Sale price $184.46
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SPECIFICATIONS: 85 Amp/12 Volt, CW, 4-Groove Pulley DESIGN: ER/IF VOLTAGE: 12 AMPERAGE: 85 ROTATION: CW PULLEY CLASS: S4 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR PLYMOU...
Regular price $247.95
Sale price $247.95
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SPECIFICATIONS: 140 Amp/12 Volt, CW, 6-Groove Clutch Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 140 ROTATION: CW PULLEY CLASS: SC6 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT ...
Regular price $264.00
Sale price $264.00
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New Alternator SAEJ1171 Replacement For Volvo Penta 3.0 4.3 5.0 5.7 5.8 7.4 8.2 93-07 3854182-7 3856600-6 3857561 3857561-9 3857813 3860171   Part NO:SAEJ1171   SPECIFICATIONS:65 Amp/12 Volt, Bi-di...
Regular price $167.73
Sale price $167.73
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SPECIFICATIONS: 105 Amp/12 Volt, CW, 5-Groove Pulley, 11:00 Plug Clock DESIGN: IR/EF VOLTAGE: 12 AMPERAGE: 105 ROTATION: CW PULLEY CLASS: S5 NOTE 1: 310 Plug Code NOTE 2: Neg. Grd. FEATURE ...
30% Off
Regular price $673.99
Sale price $673.99
Regular price $957.99
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per 
MAKE TYPE MODEL ENGINE YEAR Freightliner Truck Argosy L6 10.8L 00-03 Freightliner Truck Argosy L6 11.1L 00-06 Freightliner Truck Argosy L6 12.7L 03-06 Fr...
Regular price $204.26
Sale price $204.26
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SPECIFICATIONS: 145 Amp/12 Volt, CW, 6-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 145 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated FEATURE 2: premium rectifier & regula...
Regular price $190.88
Sale price $190.88
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SPECIFICATIONS: 90 Amp/12 Volt, CW, 2-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 90 ROTATION: CW PULLEY CLASS: V2 NOTE 1: M6 x 1.0 Batt. Term. FEATURE 1: 100% Top-rated COMPATIBLE ...
Regular price $272.90
Sale price $272.90
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SPECIFICATIONS: 110 Amp/12 Volt, CW, 7-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 110 ROTATION: CW PULLEY CLASS: S7 FEATURE 1: 100% Top-rated This list is a sample of all the compat...
30% Off
Regular price $237.99
Sale price $237.99
Regular price $337.99
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SPECIFICATIONS: 90 Amp/12 Volt, CW, 7-Groove Pulley DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 90 ROTATION: CW PULLEY CLASS: S7 FEATURE 1: 100% Top-rated COMPATIBLE WITH or REPLACEMENT FOR HONDA:...
15% Off
Regular price $256.99
Sale price $256.99
Regular price $300.99
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SPECIFICATIONS: 110 Amp/12 Volt, CW, 6-Groove Clutch Pulley, 02:00 Plug Clocking DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 110 ROTATION: CW PULLEY CLASS: SC6 FEATURE 1: 100% Top-rated COMPATIBLE...
Regular price $167.01
Sale price $167.01
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SPECIFICATIONS: 105 Amp/12 Volt, CW, 6-Groove Pulley, 07:00 Plug Clock DESIGN: IR/EF VOLTAGE: 12 AMPERAGE: 105 ROTATION: CW PULLEY CLASS: S6 NOTE 1: 310 Plug Code NOTE 2: Neg. Grd. FEATURE ...
Regular price $199.04
Sale price $199.04
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SPECIFICATIONS: 150 Amp/12 Volt, CW, 6-Groove Pulley, 03:45 Plug Clock DESIGN: IR/IF VOLTAGE: 12 AMPERAGE: 150 ROTATION: CW PULLEY CLASS: S6 FEATURE 1: 100% Top-rated FEATURE 2: premium rect...

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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