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100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation

100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation

Best price now

$175.12at Detroit AxleChecked Nov 10

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Price facts

  • Last seen at $175.12 at Detroit Axle on Nov 10.

Our take on the 100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation

This is a 100-amp, 12-volt replacement alternator with a 4-groove decoupler pulley and clockwise rotation, sold as a single unit. It is built as an OEM-style replacement in an ISO9002-certified facility and tested for impact, wear and fatigue. The decoupler pulley is the notable feature: it lets the pulley freewheel in one direction to damp belt vibration, a design common on modern engines with automatic belt tensioners. It suits drivers replacing a failed or noisy alternator on a passenger car, truck or SUV, and it competes with rebuilt and budget new alternators mainly on output and pulley type rather than brand pedigree.

Best forReplacing a failed 100A alternator on a car, truck or SUVVehicles that use a decoupler (overrunning) pulleyOwners wanting a new unit rather than a rebuildBelt-squeal or charging-light fixes tied to the alternator
Pros
  • 100A output covers most passenger car and light truck electrical loads
  • 4-groove decoupler pulley reduces belt vibration and slip
  • Clockwise rotation matches many common accessory drive layouts
  • Tested for impact, wear and fatigue before sale
  • Single-unit kit keeps the swap straightforward
Cons
  • No voltage regulator, harness or mounting hardware listed in the box
  • Decoupler pulley must match your engine's belt setup exactly
  • No warranty terms or output curve published
  • Remanufactured and OEM units offer a known track record

100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation prices at every store

  • Detroit AxleNew

    In stockReturn policy

    $175.12Checked Nov 10
    Visit Detroit Axle

About the 100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation

This is a 100A, 12V alternator with a 4-groove decoupler pulley and clockwise rotation. It is an OEM replacement alternator.

It is built under strict quality control standards and tested for impact, wear and fatigue. It is manufactured in an ISO9002 certified facility. It is made to meet the demands of foreign and domestic passenger cars, trucks and SUVs.

Amperage
100A
Voltage
12V
Pulley
4-groove decoupler pulley
Rotation
Clockwise
Type
OEM replacement alternator
In the box
1 alternator

Questions and answers

Will this fit my vehicle?
Fit depends on the mounting pattern, 4-groove pulley and clockwise rotation matching your engine. Compare the part number and pulley style against the alternator you are removing before ordering.
What does a decoupler pulley do?
It lets the pulley spin freely in one direction so the belt is not jerked when the engine decelerates. That reduces belt noise and vibration on engines with automatic tensioners.
Is it new or remanufactured?
It is described as an OEM replacement alternator built in an ISO9002-certified facility, not a remanufactured core. The kit contains one alternator.
Does it come with a regulator or wiring?
The kit lists only the alternator. Voltage regulation is internal to the unit, but no harness, bracket or hardware is included.
How does it compare with a remanufactured alternator?
A new unit avoids worn housings and reused internals, but a remanufactured OEM unit has a known fit and service history. Match output, pulley type and rotation either way.
Where is the 100A 12V Alternator with 4-Groove Decoupler Pulley Clockwise Rotation cheapest?
At Detroit Axle, for $175.12, as of our latest check.

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