<?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>0001347776</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000853816</issuerCik>
      <issuerName>LANDSTAR SYSTEM INC</issuerName>
      <secFileNumber>000-21238</secFileNumber>
      <issuerAddress>
        <com:street1>13410 SUTTON PARK DRIVE SOUTH</com:street1>
        <com:city>JACKSONVILLE</com:city>
        <com:stateOrCountry>FL</com:stateOrCountry>
        <com:zipCode>32224</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>9043901224</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Beacom Joseph J</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Member of immediate family of any of the foregoing</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>245 Summer Street</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>10000</noOfUnitsSold>
      <aggregateMarketValue>2035900.00</aggregateMarketValue>
      <noOfUnitsOutstanding>35933111</noOfUnitsOutstanding>
      <approxSaleDate>07/31/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/02/2018</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>743</amountOfSecuritiesAcquired>
      <paymentDate>01/02/2018</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/01/2018</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1360</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2018</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/03/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5055</amountOfSecuritiesAcquired>
      <paymentDate>01/03/2017</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/02/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>505</amountOfSecuritiesAcquired>
      <paymentDate>01/02/2017</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/01/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>758</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2017</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/01/2016</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>888</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2016</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/04/2014</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>691</amountOfSecuritiesAcquired>
      <paymentDate>01/04/2014</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>For Amy H Beacom 2021 Irrevocable Trust</remarks>
    <noticeSignature>
      <noticeDate>07/31/2023</noticeDate>
      <signature>/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Beacom Joseph J</signature>
    </noticeSignature>
  </formData>
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144
0001347776
XXXXXXXX
LIVE
0000853816
LANDSTAR SYSTEM INC
000-21238
13410 SUTTON PARK DRIVE SOUTH
JACKSONVILLE
FL
32224
9043901224
Beacom Joseph J
Member of immediate family of any of the foregoing
Common
Fidelity Brokerage Services LLC
245 Summer Street
Boston
MA
02110
10000
2035900.00
35933111
07/31/2023
NYSE
Common
01/02/2018
Compensation
Issuer
N
743
01/02/2018
Compensation
Common
01/01/2018
Compensation
Issuer
N
1360
01/01/2018
Compensation
Common
01/03/2017
Compensation
Issuer
N
5055
01/03/2017
Compensation
Common
01/02/2017
Compensation
Issuer
N
505
01/02/2017
Compensation
Common
01/01/2017
Compensation
Issuer
N
758
01/01/2017
Compensation
Common
01/01/2016
Compensation
Issuer
N
888
01/01/2016
Compensation
Common
01/04/2014
Compensation
Issuer
N
691
01/04/2014
Compensation
Y
For Amy H Beacom 2021 Irrevocable Trust
07/31/2023
/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Beacom Joseph J