<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2005-08-08</periodOfReport>

    <dateOfOriginalSubmission>2005-08-08</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001310663</issuerCik>
        <issuerName>K&amp;F Industries Holdings, Inc.</issuerName>
        <issuerTradingSymbol>KFI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307563</rptOwnerCik>
            <rptOwnerName>AURORA EQUITY PARTNERS III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307566</rptOwnerCik>
            <rptOwnerName>AURORA OVERSEAS EQUITY PARTNERS III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307558</rptOwnerCik>
            <rptOwnerName>AURORA CAPITAL PARTNERS III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307530</rptOwnerCik>
            <rptOwnerName>AURORA OVERSEAS CAPITAL PARTNERS III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307550</rptOwnerCik>
            <rptOwnerName>AURORA ADVISORS III LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307532</rptOwnerCik>
            <rptOwnerName>AURORA OVERSEAS ADVISORS III LDC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001335257</rptOwnerCik>
            <rptOwnerName>K&amp;F Equity Partners LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001335349</rptOwnerCik>
            <rptOwnerName>Mapes John T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AURORA CAPITAL GROUP</rptOwnerStreet1>
            <rptOwnerStreet2>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001256531</rptOwnerCik>
            <rptOwnerName>PARSKY GERALD L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AURORA CAPITAL GROUP</rptOwnerStreet1>
            <rptOwnerStreet2>10877 WILSHIRE BLVD. STE 2100</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001256523</rptOwnerCik>
            <rptOwnerName>CROWELL RICHARD R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AURORA CAPITAL GROUP</rptOwnerStreet1>
            <rptOwnerStreet2>10877 WILSHIRE BLVD. STE. 2100</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10581081</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Junior/Series A Redeemable Exchangeable Preferred</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9746.2</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Consists of 7,256,613 shares held by Aurora Equity Partners III, L.P., 95,627 shares held by Aurora Overseas Equity Partners III, L.P., 2,949,541 shares held by Aurora Equity Partners II, L.P., 39,235 shares held by Aurora Overseas Equity Partners II, L.P. and 240,065 shares held by K&amp;F Equity Partners, L.P.</footnote>
        <footnote id="F2">Consists of 6,673.3 shares held by Aurora Equity Partners III, L.P., 98.7 shares held by Aurora Overseas Equity Partners III, L.P., 2,716.7 shares held by Aurora Equity Partners II, L.P., 36.1 shares held by Aurora Overseas Equity Partners II, L.P. and 221.4 shares held by K&amp;F Equity Partners, L.P.</footnote>
    </footnotes>

    <remarks>Please see the corresponding Form 4 filed by Aurora Equity Partners III, L.P., Aurora Overseas Equity Partners II, L.P., Aurora Capital Partners II, L.P., Aurora Overseas Capital Partners II, L.P., Aurora Advisors II LLC and Aurora Overseas Advisors II LDC concurrently on the date hereof.  These entities and persons are joint filers with respect to ownership of securities of K&amp;F Industries Holdings, Inc. reported herein together with the entities and persons filing jointly hereto.</remarks>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Equity Partners III, LP</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Overseas Equity Partners III, LP</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Capital Partners III, LP</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Overseas Capital Partners III, LP</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Advisors III, LLC</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Aurora Overseas Advisors III, LDC</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for K&amp;F Equity Partners, LP</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for John T. Mapes</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Gerald L. Parsky</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ronald H. Kisner, as Attorney-in-Fact for Richard R. Crowell</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
