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New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod

New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod

Best price now

$89.99at AmazonChecked Nov 12

60% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Last seen at $89.99 at Amazon on Nov 12.
  • Checked at 3 stores.

Our take on the New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod

A new 10SI-style one-wire self-exciting alternator rated at 120 amps and 12 volts, finished in chrome, with an internal regulator and external fan. It fits many 1969-1985 GM cars and trucks with small-block or big-block V8s, including Camaro, Corvette C3, Impala, C10/K10 and Buick models. The one-wire hookup and internal regulator make it a simple upgrade over a stock externally regulated alternator. It suits street rod and hot rod builders who want a clean chrome engine bay and more charging output than the original unit.

Best forStreet rod and hot rod buildsGM V8 cars and trucks from 1969-1985Owners upgrading from an externally regulated alternatorShow-style engine bays that want a chrome finish
Pros
  • 120-amp output is well above most stock 10SI units
  • One-wire self-exciting hookup simplifies wiring
  • Internal regulator removes the external regulator box
  • Chrome finish suits show and street rod engine bays
  • Fits a wide range of GM small-block and big-block applications
Cons
  • One-wire setups can be slow to start charging at low idle
  • Chrome finish can dull or flake over time
  • Clock position is fixed at 3 unless the case is re-clocked
  • No pulley options beyond the single V-belt listed
  • High output can strain stock wiring and belts

New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod prices at every store

  • MotoflowNew

    In stockReturn policy

    $224.90Checked Nov 12
    Visit Motoflow
  • AutoBayNew

    In stockReturn policy

    $224.99Checked Nov 12
    Visit AutoBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $89.99Free shippingChecked Nov 12
    Visit Amazon

Store links may earn us a commission.

New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod price history

Lowest price we've seen: $89.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.

About the New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod

This is a chrome, self-exciting, one-wire alternator rated at 120 amps and 12 volts. It is a replacement for GM 10SI-style alternators, including those on 305 and 350 small-block and big-block Chevy engines, and is listed for street rod and hot rod use.

It rotates clockwise and has a V1 pulley class. The regulator is internal (IR) and the fan is external (EF). The clock position is set to 3 by default. The alternator is new.

Brand
E EZEXPREZE
Color
Chrome
Amperage
120 amp
Voltage
12 volt
Rotation
Clockwise (CW)
Clock position
3 (default setting)
Pulley class
V1
Regulator/Fan
IR/EF
Condition
New
Part numbers
7127-SE105, 7127-SE105C, 7127-SECN-100A, 400-12395, ADR0335-C, 240-203-3DC, 1-2400-11DR-2
Fits Buick
Apollo 1973-1974, LeSabre 1977-1982, Regal 1975-1979, Century 1977-1981, Electra 1977-1982
Fits Chevrolet
C10 1975-1982, C20 1973-1980, Citation II 1984-1985, Impala 1973-1982, K10 K20 1973-1984, G10 G20 G30 1975-1982, Monza 1978-1979, Bel Air 1973-1975, Corvette C3 1969-1982, Camaro 1975-1983, StepVan P2
Quantity
1 alternator
Package size
Height 7.2, length 8.5, width 7.4
Package weight
11.13

Questions and answers

Is this a true one-wire alternator?
Yes. It is self-exciting, so a single charge wire to the battery is enough to start it charging. The internal regulator replaces the factory external regulator.
Will it fit my small-block Chevy?
It is a 10SI-style unit for GM V8 applications, with listed fitment across many 1969-1985 Chevy, Buick and GMC models. Check your existing alternator's mounting ears and pulley type before ordering.
Does 120 amps require a wiring upgrade?
A 120-amp alternator can exceed the capacity of original charge wiring. Upgrading the charge wire and checking the belt and brackets is wise on older vehicles.
What pulley does it use?
It comes with a single V-belt pulley (V1). It is not set up for a serpentine belt.
Can I re-clock the case for clearance?
The clock position is set at 3 by default. The case can typically be re-clocked by a shop, but it is not sold as adjustable out of the box.
What is in the box?
One alternator in a package box. No pulley kit, wiring harness or belt is included.
Where is the New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod cheapest?
At Amazon, for $89.99, 60% under what the other stores charge, as of our latest check.
Where can I buy the New Chrome 1 Wire Self Exciting Alternator High Output 120Amp Replacement for GM 305 350 BBC SBC 10SI for Chevy for Buick Street Rod Hot Rod?
3 stores we checked sell it, including AutoBay, Motoflow, Amazon.

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