content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001483001</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001474735</issuerCik>
        <issuerName>GENERAC HOLDINGS INC.</issuerName>
        <secFileNumber>001-34627</secFileNumber>
        <issuerAddress>
          <com:street1>S45 W29290 HIGHWAY 59</com:street1>
          <com:city>WAUKESHA</com:city>
          <com:stateOrCountry>WI</com:stateOrCountry>
          <com:zipCode>53187</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>888 436-3722</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jagdfeld Aaron</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>29993</noOfUnitsSold>
        <aggregateMarketValue>5798794.92</aggregateMarketValue>
        <noOfUnitsOutstanding>59497259</noOfUnitsOutstanding>
        <approxSaleDate>11/13/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>11/13/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Options Granted - 02/13/2015</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>29993</amountOfSecuritiesAcquired>
        <paymentDate>11/13/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Aaron Jagdfeld</name>
          <address>
            <com:street1>S45 W29290 Hwy 59</com:street1>
            <com:city>Waukesha</com:city>
            <com:stateOrCountry>WI</com:stateOrCountry>
            <com:zipCode>53189</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>09/03/2024</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>776800.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Aaron Jagdfeld</name>
          <address>
            <com:street1>S45 W29290 Hwy 59</com:street1>
            <com:city>Waukesha</com:city>
            <com:stateOrCountry>WI</com:stateOrCountry>
            <com:zipCode>53189</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>10/01/2024</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>794650.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Aaron Jagdfeld</name>
          <address>
            <com:street1>S45 W29290 Hwy 59</com:street1>
            <com:city>Waukesha</com:city>
            <com:stateOrCountry>WI</com:stateOrCountry>
            <com:zipCode>53189</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>11/01/2024</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>833000.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>11/13/2024</noticeDate>
        <signature>/s/ Eric Janiak, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Aaron Jagdfeld</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4637}]
text: 144
  0001483001
  XXXXXXXX
  LIVE
  0001474735
  GENERAC HOLDINGS INC.
  001-34627
  S45 W29290 HIGHWAY 59
  WAUKESHA
  WI
  53187
  888 436-3722
  Jagdfeld Aaron
  Officer
  Director
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  29993
  5798794.92
  59497259
  11/13/2024
  NYSE
  Common
  11/13/2024
  Options Granted - 02/13/2015
  Issuer
  N
  29993
  11/13/2024
  Cash
  N
  Aaron Jagdfeld
  S45 W29290 Hwy 59
  Waukesha
  WI
  53189
  Common
  09/03/2024
  5000
  776800.00
  Aaron Jagdfeld
  S45 W29290 Hwy 59
  Waukesha
  WI
  53189
  Common
  10/01/2024
  5000
  794650.00
  Aaron Jagdfeld
  S45 W29290 Hwy 59
  Waukesha
  WI
  53189
  Common
  11/01/2024
  5000
  833000.00
  11/13/2024
  /s/ Eric Janiak, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Aaron Jagdfeld