<SEC-DOCUMENT>0000763744-18-000184.txt : 20180605
<SEC-HEADER>0000763744-18-000184.hdr.sgml : 20180605
<ACCEPTANCE-DATETIME>20180605164905
ACCESSION NUMBER:		0000763744-18-000184
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180601
FILED AS OF DATE:		20180605
DATE AS OF CHANGE:		20180605

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mereness Scott T
		CENTRAL INDEX KEY:			0001307217

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13646
		FILM NUMBER:		18881785

	MAIL ADDRESS:	
		STREET 1:		C/O LIPPERT COMPONENTS, INC.
		STREET 2:		2766 COLLEGE AVENUE
		CITY:			GOSHEN
		STATE:			IN
		ZIP:			46528

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LCI INDUSTRIES
		CENTRAL INDEX KEY:			0000763744
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				133250533
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3501 COUNTY ROAD 6 EAST
		CITY:			ELKHART
		STATE:			IN
		ZIP:			46514
		BUSINESS PHONE:		5745351125

	MAIL ADDRESS:	
		STREET 1:		3501 COUNTY ROAD 6 EAST
		CITY:			ELKHART
		STATE:			IN
		ZIP:			46514

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREW INDUSTRIES INC
		DATE OF NAME CHANGE:	20161220

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREW INDUSTRIES Inc
		DATE OF NAME CHANGE:	20150408

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREW INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152823172846475.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-06-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000763744</issuerCik>
        <issuerName>LCI INDUSTRIES</issuerName>
        <issuerTradingSymbol>LCII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307217</rptOwnerCik>
            <rptOwnerName>Mereness Scott T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O LCI INDUSTRIES</rptOwnerStreet1>
            <rptOwnerStreet2>3501 COUNTY ROAD 6 EAST</rptOwnerStreet2>
            <rptOwnerCity>ELKHART</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46514</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-06-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>85</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>263900</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This transaction was executed in multiple trades at prices ranging from $84.50 to $85.50; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brian M. Hall on behalf of Scott T. Mereness</signatureName>
        <signatureDate>2018-06-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
