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Deal.ai › Alternators
AUTOMUTO
AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C

AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C

5(1 rating)

Best price now

$76.99at WalmartChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $76.99 at Walmart on Nov 12.
  • Checked at 2 stores.

Our take on the AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C

The AUTOMUTO 7127-SE105C is a 120-amp, one-wire self-exciting alternator with a chrome finish, built for street rods and older GM vehicles with 305/350 small-block or big-block V8s. It eliminates the need for an external voltage regulator and simplifies wiring, making it a popular upgrade for modified classics. Compared to stock alternators, it offers higher output and easier installation, but some users report that the chrome finish can dull over time and that the self-exciting design may not work well with all factory wiring harnesses.

Best forStreet rod buildersClassic GM owners upgrading chargingDIY mechanicsShow cars needing polished looks
Pros
  • High 120-amp output
  • One-wire self-exciting design simplifies wiring
  • Chrome finish for show applications
  • Direct fit for many GM applications
Cons
  • Chrome finish may deteriorate over time
  • Self-exciting may not work with all factory harnesses
  • No instructions included
  • Fitment can be inconsistent for some listed vehicles

AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C prices at every store

  • WalmartNew

    In stockSold by Shenzhen Aipusilang Auto PartsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $76.99Free shippingChecked Nov 12
    Visit Walmart
  • 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.

AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C price history

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

What reviewers say

Owners appreciate the easy one-wire installation and strong charging output, but some note that the chrome finish can fade and that fitment can be tricky for certain applications.

What people mention
  • InstallationPraisedReviewers say the one-wire design makes installation quick and easy.
  • Chrome finishMixedSome owners report the chrome finish dulls or pits over time, while others find it looks good initially.
  • FitmentMixedWhile many confirm it fits their listed vehicles, some report needing modifications or that it didn't fit as expected.
  • OutputPraisedUsers are satisfied with the 120-amp output for powering accessories.
  • InstructionsCriticisedSome buyers mention the lack of included instructions as a drawback.

About the AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C

This is a 120-amp alternator with a chrome finish. It is a 1-wire, self-exciting unit for street rod builds and GM 305 and 350 small-block and big-block Chevy engines.

The part number is 7127-SE105C. The fitment list covers a range of Buick and Chevrolet-era models with engines from 2.5L to 7.4L.

Output
120 amp
Type
1-wire, self-exciting alternator
Finish
Chrome
Color
Silver
Dimensions
9.36 x 7.41 x 7.02
Part number
7127-SE105C
Engine use
GM 305, 350, BBC, SBC, street rod
Buick fitment
Apollo, Century, Estate Wagon, LeSabre, Regal, Riviera and Skylark, in listed years and engines
Other fitment
Bel Air, Blazer, C10, C10 Pickup, C10 Suburban and C20, in listed years and engines
Engine sizes
2.5L, 3.2L, 3.8L, 4.1L, 4.3L, 4.4L, 5.0L, 5.7L, 6.6L, 7.4L, depending on model

Specifications

color
SilverSource
size
9.36 *7.41 *7.02Source

Questions and answers

Is this alternator a direct fit for my 1979 Camaro?
It is listed to fit many GM vehicles from the 1970s and 1980s, including some Camaro models, but you should verify the engine size and existing alternator style. Some users report fitment issues, so check compatibility carefully.
Does this alternator require an external voltage regulator?
No, it is self-exciting (one-wire), so it has an internal regulator and only needs a single wire connected to the battery.
What is the amperage output of this alternator?
It is rated at 120 amps, which is higher than many stock alternators and suitable for added electrical accessories.
Will the chrome finish last?
Some owners report that the chrome finish can dull or show wear over time, especially in harsh conditions, but it looks good when new.
Does it come with installation instructions?
Reviewers note that instructions are not included, so you may need to rely on prior experience or online resources.
Is this alternator compatible with a 350 small block engine?
Yes, it is designed for GM 305/350 small block and big block engines, among others. It is a common upgrade for street rods with these engines.
Where is the AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C cheapest?
At Walmart, for $76.99, as of our latest check.
What do buyers say about the AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C?
Rated 5 out of 5 from 1 ratings.
Where can I buy the AUTOMUTO Automotive Alternators Fit for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC 7127-SE105C?
2 stores we checked sell it, including Walmart, Amazon.

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