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XS Power  XSP312

Harness for GM "CS" Series Alternators (1986 to 1997)

Item #56533

Condition:   Brand New

Product Highlights

  • Designed for GM CS series alternators
  • Fits vehicles from 1986 to 1997
  • Provides secure electrical connections
  • Durable for long-term use
  • Easy to install with plug-and-play design

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
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60 DAYS Price change protection.

$59.99

Reg. Price $89.99  Save $30.00
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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XS Power XSP312 Harness for GM "CS" Series Alternators (1986 to 1997)


We are a XS Power Authorized Dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • Harness
  • • Owner's Manual
GM CS Series Alternator Harness

Keep your GM charging system connected with confidence using the XS Power XSP312. Designed specifically for GM “CS” Series alternators from 1986–1997, this purpose-built harness delivers a straightforward connection solution for performance electrical applications.

 


Frequently Asked Questions (FAQ)


  • • Why doesn't XSP312 fit my alternator?
    XSP312 is intended for GM CS-series alternators from 1986–1997. Always match the actual alternator plug before installation.
  • • Does XSP312 work with an XSP310 controller?
    Yes. The harness connects compatible GM alternators to XS Power XSP310 or XSP320 voltage controllers.
  • • Why does my harness need modification?
    Some listings classify XSP312 as universal and warn that adaptation may be required depending on the vehicle and alternator setup.
  • • Can I use XSP312 with a one-wire alternator?
    No. XS Power's VCM application guide specifically excludes one-wire versions of applicable alternators.
  • • Why isn't my VCM working after installing XSP312?
    An incorrect alternator application or connector can prevent proper VCM operation. Verify the alternator plug before troubleshooting the controller.
  • • Does XSP312 control voltage by itself?
    No. XSP312 is only the connection harness; voltage adjustment comes from the compatible XSP310 or XSP320 controller.
  • • Why does my connector look different?
    GM alternators can use different plug configurations. The VCM guide recommends identifying the plug itself rather than relying only on the vehicle year.
  • • Is XSP312 difficult to install?
    It is designed as a direct connection between the controller and alternator, although some applications may need minor adaptation.
  • • Can XSP312 be used with an aftermarket alternator?
    Yes, provided the aftermarket alternator uses the compatible GM CS configuration and connector.
  • • What should I check before ordering XSP312?
    Confirm the alternator type, connector, and production year. Choosing by vehicle model alone can lead to the wrong VCM harness.

SPECIFICATIONS



FEATURES


Features:

  • GM CS Series Fit: Designed for 1986–1997 GM CS alternators.
  • Dedicated Harness: Built specifically for compatible GM charging systems.
  • Secure Connection: Helps maintain a dependable alternator connection.
  • Performance Ready: Suitable for upgraded electrical setups.
  • Purpose-Built Design: Engineered around GM CS Series applications.
  • Built to Perform: A practical solution for reliable charging integration.
  • UPC: 692209015161
  • Weight: 10
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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