Mechman 7127170P 170A 63-85 Buick/Cadillac/Chevrolet/Pontiac Polished Alternator


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SKU: MECH-7127170P Category:

Mechman 7127170P Polished Alternator

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The S series of 6 phase alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow ensure much better durability than standard Delco based alternators, even in severe conditions. This custom designed housing directly replaces standard Delco 10DN, 10SI and 12SI alternators on most 1963 through 1985 GM vehicles. A side output stud and seamless rear cover with no plug opening allow for better clearance from the back of the alternator to the front of the engine and a smooth appearance. A “one-wire” self exciting internal voltage regulator makes installation of these alternators on older or customized vehicles a snap- Simply run a properly sized positive and ground cable from the alternator to the terminals of the battery and the alternator will work perfectly, regardless of what kind of wiring harness you have. Because of their compact size and standard GM mounting ears, these alternators also work well in many aftermarket or custom bracket installations.

Tech Specs

  • 170A High Amperage Alternator w/ Polished Finish
  • Hand Built in the United States of America
  • Every Unit Tested and Quality Inspected Before Leaving Warehouse
  • Increases high RPM stability
  • Superior amperage output over OEM alternators
  • Oversized charge post ensure sturdy cable connections
  • Premium low-drag bearings
  • Ultra precision balanced rotor
  • Provides 20,000 RPM capability
  • Twin solid copper rectifiers with 12 press fit high amp diodes to spread out heat
  • 15% more efficient than typical alternators
  • Wastes less horsepower in the form of heat
  • Offer a higher amperage output at lower RPM than other alternator options
  • Precision pulley machined from bar stock
  • 2 Year Manufacturer’s Warranty


  • GMC
    • 1963 – 1985 All Early Models, All Engines
  • Cadillac
    • 1963 – 1985 All Early Models, All Engines
  • Pontac
    • 1963 – 1985 All Early Models, V-8
  • Chevrolet
    • 1963 – 1985 All Early Models, All Engines
  • Oldsmobile
    • 1963 – 1985 All Early Models, V-8
  • Buick
    • 1973 – 1982 Regal, V-8 w/ 12SI
    • 1963 – 1985 Riviera, All Engines
    • 1963 – 1979 All Early Models, All Engines

Showtime Electronics is an Authorized Mechman Dealer

Weight 10 lbs

Alternator Amperage

Alternator Series