-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 OhJPJxgElan/r7hfDD6NVPbfHHa/obLWR1zi5JkwAP4co4QS+VgM1KIG99sbSBtV
 0NBflBHlRTYl1MDOsOKCQw==

<SEC-DOCUMENT>0001104659-11-005953.txt : 20110209
<SEC-HEADER>0001104659-11-005953.hdr.sgml : 20110209
<ACCEPTANCE-DATETIME>20110209170600
ACCESSION NUMBER:		0001104659-11-005953
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110208
FILED AS OF DATE:		20110209
DATE AS OF CHANGE:		20110209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KNOTT DAVID M
		CENTRAL INDEX KEY:			0000808722

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34601
		FILM NUMBER:		11587942

	MAIL ADDRESS:	
		STREET 1:		485 UNDERHILL BLVD
		STREET 2:		STE 205
		CITY:			SYOSSET
		STATE:			NY
		ZIP:			11791-3419

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Essex Rental Corp.
		CENTRAL INDEX KEY:			0001373988
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MISCELLANEOUS EQUIPMENT RENTAL & LEASING [7350]
		IRS NUMBER:				205415048
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		461 FIFTH AVENUE,
		STREET 2:		25THFLOOR,
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		212-644-3450

	MAIL ADDRESS:	
		STREET 1:		461 FIFTH AVENUE,
		STREET 2:		25THFLOOR,
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Hyde Park Acquisition CORP
		DATE OF NAME CHANGE:	20070216

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Rand Acquisition Corp. II
		DATE OF NAME CHANGE:	20060828
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-08</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001373988</issuerCik>
        <issuerName>Essex Rental Corp.</issuerName>
        <issuerTradingSymbol>ESSXW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000808722</rptOwnerCik>
            <rptOwnerName>KNOTT DAVID M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>485 UNDERHILL BLVD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 205</rptOwnerStreet2>
            <rptOwnerCity>SYOSSET</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11791-3419</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>467300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>467300</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>478500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Knott Partners, L.P.</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>136700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>136700</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>140100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Shoshone Partners, L.P.</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>370198</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>370198</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>378902</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Knott Partners Offshore Master Fund, L.P.</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Mulsanne Partners, L.P.</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-02-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>25800</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25800</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Managed Account A</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reported securities identified in Columns 5 and 9 of Table II include components originally acquired as Units.  Each Unit consists of one (1) share of common stock and one warrant to purchase one (1) share of common stock.  The securities listed in column 9 of Table II include warrant components of such Units, as well as warrants separately acquired in open market or private transactions.</footnote>
        <footnote id="F2">Mr. Knott is the managing member of Knott Partners Management, LLC, which is (i) the sole general partner of Shoshone Partners, L.P., Knott Partners Offshore Master Fund, L.P., and Mulsanne Partners, L.P. and (ii) the managing general partner of Knott Partners, L.P.  Mr. Knott  is also a general partner of Knott Partners, L.P.</footnote>
        <footnote id="F3">The Reporting Person is the sole director and the president of Dorset Management Corporation, which provides investment management services to the institutional managed account set forth in column 11 of Table II (the &quot;Managed Account&quot;).</footnote>
        <footnote id="F4">As a result of Mr. Knott's interests in Knott Partners Management, LLC and in Dorset Management Corporation, Mr. Knott has investment discretion and control of the securities represented in this entry.  Mr. Knott may be deemed to beneficially own an indirect pecuniary interest in the securities represented in this entry as a result of a performance-related fee.  Except with respect to Knott Partners, L.P., Knott Partners Offshore Master Fund, L.P., Shoshone Partners, L.P. and Mulsanne Partners, L.P., in which Mr. Knott owns a beneficial interest, Mr. Knott disclaims beneficial ownership therein except to the extent ultimately realized. Each of Knott Partners, L.P., Knott Partners Offshore Master Fund, L.P., Shoshone Partners, L.P., and Mulsanne Partners, L.P., and the Managed Account disclaims beneficial ownership of securities reported as owned by any other party.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: /s/David M. Knott</signatureName>
        <signatureDate>2011-02-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>KNOTT PARTNERS, L.P.,  by Knott Partners Management, LLC, as Managing General Partner,  /s/David M. Knott, Managing Member</signatureName>
        <signatureDate>2011-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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