    <SEC-DOCUMENT>0000355811-18-000013-index.html : 20180403
    <SEC-HEADER>0000355811-18-000013.hdr.sgml : 20180403
    <ACCEPTANCE-DATETIME>20180403112001
    ACCESSION NUMBER:		0000355811-18-000013
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		8
    CONFORMED PERIOD OF REPORT:	20170331
    FILED AS OF DATE:		20180403
    DATE AS OF CHANGE:		20180403
    EFFECTIVENESS DATE:		20180403

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-10235
    		FILM NUMBER:		18732046

    	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>DEF 14A
    <SEQUENCE>1
    <FILENAME>gentexproxystatement2018.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: gentexproxystatement2018.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>gentexcorporationp018311.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: gentexcorporationp018311.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>gentexcorporationp018311001.jpg
    <TEXT>
    Document 3 - file: gentexcorporationp018311001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>gentexcorporationp018311002.jpg
    <TEXT>
    Document 4 - file: gentexcorporationp018311002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>gentexproxyimage1a03.jpg
    <TEXT>
    Document 5 - file: gentexproxyimage1a03.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>gentexproxyimage3a03.gif
    <TEXT>
    Document 6 - file: gentexproxyimage3a03.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>sprsignaturea07.jpg
    <TEXT>
    Document 7 - file: sprsignaturea07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>sprsignaturea08.jpg
    <TEXT>
    Document 8 - file: sprsignaturea08.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>