<SEC-DOCUMENT>0001562180-19-002986.txt : 20190520
<SEC-HEADER>0001562180-19-002986.hdr.sgml : 20190520
<ACCEPTANCE-DATETIME>20190520074714
ACCESSION NUMBER:		0001562180-19-002986
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190516
FILED AS OF DATE:		20190520
DATE AS OF CHANGE:		20190520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MULDER JOHN A
		CENTRAL INDEX KEY:			0001232671

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10235
		FILM NUMBER:		19837619

	MAIL ADDRESS:	
		STREET 1:		16680 LYONHURST CIRCLE
		CITY:			NORTHVILLE
		STATE:			MI
		ZIP:			48167

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENTEX CORP
		CENTRAL INDEX KEY:			0000355811
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				382030505
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 N CENTENNIAL ST
		CITY:			ZEELAND
		STATE:			MI
		ZIP:			49464
		BUSINESS PHONE:		6167721800

	MAIL ADDRESS:	
		STREET 1:		600 N CENTENNIAL STREET
		CITY:			ZEELAND
		STATE:			MI
		ZIP:			49464
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-05-16</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0000355811</issuerCik>
        <issuerName>GENTEX CORP</issuerName>
        <issuerTradingSymbol>GNTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001232671</rptOwnerCik>
            <rptOwnerName>MULDER JOHN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 600 NORTH CENTENNIAL STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ZEELAND</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49464</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-05-16</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4403.00</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>35707.00</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares vest 100% one year from grant award date.</footnote>
        <footnote id="F2">50,000 Shares indirectly held in the &quot;Elinore L. Mulder Trust&quot;</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Robert L. Hughes for MULDER JOHN A by Power of Attorney</signatureName>
        <signatureDate>2019-05-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>mulder_poa.txt
<DESCRIPTION>JOHN MULDER - POA
<TEXT>
LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS


Know all by these presents, that the undersigned hereby constitutes and
appoints each of Kevin Nash, any successor Director of Accounting of
Gentex Corporation (the "Corporation"), and Robert Hughes, any successor
Finance & Tax Manager of the Corporation, and any of their respective
designates, signing singly, the undersigned's true and lawful
attorney-in-fact to:

(1)	execute for and on behalf of the undersigned, in the undersigned's
 capacity as an officer and/or director of the Corporation, Forms 3, 4,
 and 5 in accordance with Section 16(a) of the Securities Exchange Act
 of 1934 and the rules thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned
 that may be necessary or desirable to complete and execute any such Form
 3, 4, or 5, complete and execute any amendment or amendments thereto,
 and timely file such form with the United States Securities and Exchange
 Commission and any stock exchange or similar authority; and

(3)	take any other action of any type whatsoever in connection with the
 foregoing that, in the opinion of such attorney-in-fact, may be of benefit
 to, in the best interest of, or legally required by, the undersigned, it
 being understood that the documents executed by such attorney-in-fact on
 behalf of the undersigned pursuant to this Power of Attorney shall be in
 such form and shall contain such terms and conditions as such
 attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact's substitute or substitute's, shall lawfully do or cause to
be done by virtue of this Power of Attorney and the rights and powers
herein granted.

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor
is the Corporation assuming, any of the undersigned's responsibilities to
comply with Section 16 or any other provision of the Securities Exchange Act
of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to
the undersigned's holdings of and transactions in securities issued by the
Corporation, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 15th day of August, 2013.

                                   \s\   John A. Mulder
                   Signature________________________________

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