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  <xsd:element id="nav_CommitmentsForCapitalExpendituresInProgress" name="CommitmentsForCapitalExpendituresInProgress" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="nav_CommonAndPreferredStockMember" name="CommonAndPreferredStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nav_DebtInstrumentPercentageOfBorrowingsDenominatedInCountriesCurrency" name="DebtInstrumentPercentageOfBorrowingsDenominatedInCountriesCurrency" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element id="nav_DebtInstrumentRedemptionPricePrincipalAmountRedeemed" name="DebtInstrumentRedemptionPricePrincipalAmountRedeemed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="nav_EmergingMarketsEquityMember" name="EmergingMarketsEquityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nav_EquityMethodInvestmentSummarizedFinancialInformationCostOfSalesExpensesAndIncomeTaxExpense" name="EquityMethodInvestmentSummarizedFinancialInformationCostOfSalesExpensesAndIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="nav_FairValueChangeInUnrealizedGainsOnAssetsAndLiabilitiesStillHeld1" name="FairValueChangeInUnrealizedGainsOnAssetsAndLiabilitiesStillHeld1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element id="nav_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIssuances" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIssuances" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nav_FieldCampaignToAddressIssuesInProductsSoldMember" name="FieldCampaignToAddressIssuesInProductsSoldMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinanceReceivableNonAccrualStatusMember" name="FinanceReceivableNonAccrualStatusMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nav_FinanceReceivablesFairValueDisclosure" name="FinanceReceivablesFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="nav_FinanceReceivablesRetailAccountsCollateralForBorrowedSecurities" name="FinanceReceivablesRetailAccountsCollateralForBorrowedSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="nav_FinanceRevenuesDerivedFromReceivablesTableTextBlock" name="FinanceRevenuesDerivedFromReceivablesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="nav_FinanceRevenuesFromOnBalanceSheetReceivables" name="FinanceRevenuesFromOnBalanceSheetReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinanceRevenuesTable" name="FinanceRevenuesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinancedLeaseObligationsMember" name="FinancedLeaseObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinancialServicesOperationsMember" name="FinancialServicesOperationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinancingArrangementsAndCapitalLeaseObligationsMember" name="FinancingArrangementsAndCapitalLeaseObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FinancingArrangementsMember" name="FinancingArrangementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nav_FinancingReceivablesRecordedInvestment30To90DaysPastDue" name="FinancingReceivablesRecordedInvestment30To90DaysPastDue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="nav_ForeignCurrencyContractsAbstract" name="ForeignCurrencyContractsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FourPointFiveZeroSeniorSubordinatedConvertibleNotesMember" name="FourPointFiveZeroSeniorSubordinatedConvertibleNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_FourPointSevenFiveSeniorSubordinatedConvertibleNotesMemberMember" name="FourPointSevenFiveSeniorSubordinatedConvertibleNotesMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumberOfCommonStockDelivered" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumberOfCommonStockDelivered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nav_VariableInterestEntityPrimaryBeneficiarySecuritizationsTreatedAsBorrowingsMember" name="VariableInterestEntityPrimaryBeneficiarySecuritizationsTreatedAsBorrowingsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nav_WarrantyAxis" name="WarrantyAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WarrantyContractsSoldInCurrentYearMember" name="WarrantyContractsSoldInCurrentYearMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WarrantyDomain" name="WarrantyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WarrantyLiabilityPriorPeriodAdjustmentMember" name="WarrantyLiabilityPriorPeriodAdjustmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nav_WarrantyRecoveries" name="WarrantyRecoveries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WarrenvilleMember" name="WarrenvilleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WholesalePortfolioMember" name="WholesalePortfolioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nav_WorkhorseCustomChassisMember" name="WorkhorseCustomChassisMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>