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HD Alternators

Discussion in 'Commercial Snow Removal' started by cowboy, Dec 2, 2000.

  1. cowboy

    cowboy Member
    Messages: 75

    Where can you find HD alternators needed for the plow/lights etc? Or can you use a stock alternator with dual batteries?

  2. Michael F

    Michael F Senior Member
    Messages: 203

    I have alway used stock alternators until the one on the truck fails, then replaced with the largest one available, Last year I replaced one for an 85 K20 there were 2 avaialable I believe a 70 amp & an 98 amp, put the 98 amp in, this was from Pepboys I believe, I know there is a place in town where I could have had it rebuilt or the could have made it put out more amps. Never had a need, I run plow, highlighter bar & headlights. My new truck 99 order with plow prep only has a 110 amp, that has computer ect to run.
  3. John DiMartino

    John DiMartino PlowSite.com Veteran
    Messages: 2,154

    On GM's from 91 to 94 and even on some 88-90's the factory 100 amp alts burn up the rear bearing,this is a common problem.The police cars(caprice) from 91-93 use a 140 amp high output alt that has a huge case and is a great design.To retro-fit one to the small block or 4.3 V6 takes the drivers side accesory bracket from a Caprice police car(about $50 new and the alternator.The alt can also come from the 94-97 B or F body GM's,these are camaro/caprice with LT1 engines.When my salvage yard gets an Alternator,its mine for $85,which I feel is a bargain considering its output.I am running dual batterys on both my F/S plow trucks now,it really helps keep the voltage from spiking down under 10 volts when raising and angling.If I could fit them,Id have 2 on the S10 also.
  4. cowboy

    cowboy Member
    Messages: 75

    whoops, should of mentioned it will be a 73-87 Chevy with 350 V8.
  5. matthew Urban

    matthew Urban Senior Member
    Messages: 129

    Anybody got anything for a ford 302 ?
  6. SlimJim Z71

    SlimJim Z71 PlowSite.com Addict
    Messages: 1,031


    Check out http://www.powermastermotorsports.com

    I got a 200-amp alternator from them for my '96 K1500. It was a little pricy ($380) but well worth it. They can supply you with everything you need to get going. They also offer smaller pulleys.