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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
</B>Washington, D.C. 20549</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT</B><BR>
Pursuant to Section&nbsp;13 or 15(d) of the<BR>
Securities Exchange Act of 1934</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (Date of earliest event reported):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">April 30, 2012</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Wabash National Corporation</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant
as specified in its charter)</P>

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<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 34%; text-align: center">Delaware</TD>
    <TD STYLE="width: 33%; text-align: center">1-10883</TD>
    <TD STYLE="width: 33%; text-align: center">52-1375208</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">(State or other jurisdiction of incorporation)</TD>
    <TD STYLE="text-align: center">(Commission File No.)</TD>
    <TD STYLE="text-align: center">(IRS Employer Identification No.)</TD></TR>
</TABLE>

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<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 100%; text-autospace: none; text-align: center">1000 Sagamore Parkway South, Lafayette, Indiana 47905</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-autospace: none; text-align: center">(Address of principal executive offices) (Zip Code)</TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Registrant&rsquo;s telephone number, including
area code:<BR>
(765) 771-5300</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Not applicable</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former
address, if changed since last report)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&#168; </FONT>Written
communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&#168; </FONT>Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&#168; </FONT>Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&#168; </FONT>Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION TO BE INCLUDED IN THE REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Section 2 &ndash; Financial Information</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 2.02 Results of Operations and Financial Condition.
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On April 30, 2012, Wabash National Corporation
(the &ldquo;Company&rdquo;) issued a press release announcing its financial results for the quarter ended March 31, 2012. A copy
of the Registrant&rsquo;s press release is attached as Exhibit 99.1 and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Section 9 &ndash; Financial Statements and Exhibits</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 9.01 Financial Statements and Exhibits. </B></P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">(d)</TD><TD STYLE="text-align: justify"><U>Exhibits:</U></TD>
</TR></TABLE>

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<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in; text-align: left">99.1</TD><TD STYLE="text-align: justify">Wabash National Corporation press release dated April
30, 2012.</TD>
</TR></TABLE>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURES</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Pursuant to the requirements of the Securities
Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

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    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">WABASH NATIONAL CORPORATION</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; width: 50%">Date: April 30, 2012</TD>
    <TD STYLE="width: 4%">By:&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 46%">/s/ Mark J. Weber</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; border-top: #000000 1px solid">Mark J. Weber<BR>Senior Vice President and Chief Financial Officer</TD></TR>
</TABLE>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">EXHIBIT INDEX</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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    <TD STYLE="width: 15%; text-autospace: none; font-weight: bold"><B>Exhibit No.</B></TD>
    <TD STYLE="width: 5%; text-autospace: none">&nbsp;</TD>
    <TD STYLE="width: 80%; text-autospace: none; font-weight: bold">Description</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 7.5pt; text-autospace: none; text-indent: -7.5pt">99.1</TD>
    <TD STYLE="text-autospace: none">&nbsp;</TD>
    <TD STYLE="text-autospace: none">Wabash National Corporation Press Release dated April 30, 2012</TD></TR>
</TABLE>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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{"company-data": {"conformed-name": "WABASH NATIONAL CORP /DE", "cik": "0000879526", "assigned-sic": "3715", "irs-number": "521375208", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-10883", "film-number": "12796378"}, "business-address": {"street1": "1000 SAGAMORE PARKWAY SOUTH", "city": "LAFAYETTE", "state": "IN", "zip": "47905", "phone": "7657715310"}, "mail-address": {"street1": "1000 SAGAMORE PARKWAY SOUTH", "city": "LAFAYETTE", "state": "IN", "zip": "47905"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
April 30, 2012
Wabash National Corporation
(Exact name of registrant
as specified in its charter)
Delaware
1-10883
52-1375208
(State or other jurisdiction of incorporation)
(Commission File No.)
(IRS Employer Identification No.)
1000 Sagamore Parkway South, Lafayette, Indiana 47905
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including
area code:
(765) 771-5300
Not applicable
(Former name or former
address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
¨
Written
communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
INFORMATION TO BE INCLUDED IN THE REPORT
Section 2 – Financial Information
Item 2.02 Results of Operations and Financial Condition.
On April 30, 2012, Wabash National Corporation
(the "Company") issued a press release announcing its financial results for the quarter ended March 31, 2012. A copy
of the Registrant's press release is attached as Exhibit 99.1 and is incorporated herein by reference.
Section 9 – Financial Statements and Exhibits
Item 9.01 Financial Statements and Exhibits.
(d)
Exhibits:
99.1
Wabash National Corporation press release dated April
30, 2012.
Page
2
SIGNATURES
Pursuant to the requirements of the Securities
Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.
WABASH NATIONAL CORPORATION
Date: April 30, 2012
By:
/s/ Mark J. Weber
Mark J. Weber
Senior Vice President and Chief Financial Officer
Page
3
EXHIBIT INDEX
Exhibit No.
Description
99.1
Wabash National Corporation Press Release dated April 30, 2012
Page
4