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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PmK8SjZA2qLABCeLkZILEOKARdhZT2SfbOLTTtsdsJB0ZH79lgYM42JrmMJLRBXt
 a2kru66um94PjCj/bplv6Q==

<SEC-DOCUMENT>0001209191-04-004038.txt : 20040122
<SEC-HEADER>0001209191-04-004038.hdr.sgml : 20040122
<ACCEPTANCE-DATETIME>20040122112758
ACCESSION NUMBER:		0001209191-04-004038
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040106
FILED AS OF DATE:		20040122

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOODWIN WILLIAM M
		CENTRAL INDEX KEY:			0001197643
		STATE OF INCORPORATION:			PA

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14989
		FILM NUMBER:		04536898

	MAIL ADDRESS:	
		STREET 1:		C/O WESCO DISTRIBUTION INC
		STREET 2:		225 W STATION SQUARE DRIVE
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000929008
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES [5063]
		IRS NUMBER:				251723345
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		COMMERCE COURT 4 STATION SQUARE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219
		BUSINESS PHONE:		4124542200

	MAIL ADDRESS:	
		STREET 1:		COMMERCE COURT 4 STATION SQUARE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDW HOLDING CORP
		DATE OF NAME CHANGE:	19971217
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc4a.xml
<DESCRIPTION>FORM 4/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4/A</documentType><periodOfReport>2004-01-06</periodOfReport><dateOfOriginalSubmission>2004-01-06</dateOfOriginalSubmission><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000929008</issuerCik><issuerName>WESCO INTERNATIONAL INC</issuerName>        <issuerTradingSymbol>WCC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001197643</rptOwnerCik><rptOwnerName>GOODWIN WILLIAM M</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>225 WEST STATION SQUARE DRIVE, SUITE 700</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>PITTSBURGH</rptOwnerCity><rptOwnerState>PA</rptOwnerState><rptOwnerZipCode>15219</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerT
itle>VICE PRESIDENT, OPERATIONS</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>WESCO International Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>135252.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Option for WESCO International Common Stock</value></securityTitle><conversionOrExercisePrice><value>1.7300</value></conversionOrExercisePrice><transactionDate><value>2004-01-06</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>D</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactio
nTimeliness><transactionAmounts><transactionShares><value>165308.0000</value></transactionShares><transactionPricePerShare><value>6.9040</value><footnoteId id="F2" /></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2004-07-27</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>WESCO International Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>165308.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction><derivativeHolding><securityTitle><value>Option for WESCO International Common Stock</value></securityTitle><conversionOrExercisePrice><v
alue>10.7500</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F3" /></exerciseDate><expirationDate><value>2008-08-06</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>WESCO International Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>127160.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>127160.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Option for WESCO International Common Stock</value></securityTitle><conversionOrExercisePrice><value>9.8750</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F4" /></exerciseDate><expirationDate><value>2010-05-11</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>WESCO International Common Stock</v
alue></underlyingSecurityTitle><underlyingSecurityShares><value>35000.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>162160.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Option for WESCO International Common Stock</value></securityTitle><conversionOrExercisePrice><value>4.5000</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F4" /></exerciseDate><expirationDate><value>2011-12-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>WESCO International Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>35000.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>197160.0000</value></sharesOwnedFollowingTransactio
n></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeTransaction><securityTitle><value>Option for WESCO International Common Stock</value></securityTitle><conversionOrExercisePrice><value>5.9000</value></conversionOrExercisePrice><transactionDate><value>2003-08-22</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>38000.0000</value></transactionShares><transactionPricePerShare><value>5.9000</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F5" /></exerciseDate><expirationDate><value>2013-08-22</value></
expirationDate><underlyingSecurity><underlyingSecurityTitle><value>WESCO International Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>38000.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>235160.0000</value><footnoteId id="F6" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Options are fully vested and exercisable</footnote><footnote id="F2">The price of the options disposed is equal to the average closing price of the Company's Common Stock on the New York Stock Exchange over a five-day trading period, less the option exercise price.</footnote><footnote id="F3">Half of the options granted vested over a four-year time period beginning with the grant date, with the remaining half being subject to accellerated vesting
 based on performance.  Any options not yet vested become vested effective 1/1/2008.</footnote><footnote id="F4">Options are subject to performance vesting, with any unvested options becoming vested 90 days prior to the expiration date of such options.</footnote><footnote id="F5">Options vest at a rate of 1/3 per year on the anniversary date of the option grant over the next three years.</footnote><footnote id="F6">Cumulative Number of Derivative Securities Beneficially Owned column totals corrected (Table II, Item 9).</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ William M. Goodwin</signatureName><signatureDate>2004-01-22</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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