              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) FebruaryMarch 15, 2005


                     NAVISTAR FINANCIAL 2004-B OWNER TRUST
             (Exact name of Registrant as specified in its charter)


                                    Delaware
                 (State or other jurisdiction of incorporation)



            333-67112-06                               51-0337491
      (Commission File Number)            (I.R.S. Employer Identification No.)




 2850 West Golf Road Rolling Meadows, Illinois             60008
   (Address of principal executive offices)             (Zip Code)



         Registrant's telephone number including area code 847-734-4000


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                    INFORMATION TO BE INCLUDED IN THE REPORT


Item 8.01.  Other Events.


            On FebruaryMarch 15, 2005, the Registrant made available the
            Monthly Servicer Certificate for the Period of JanuaryFebruary 2005
            for the NAVISTAR FINANCIAL 2004-B OWNER TRUST,  which  is
            attached as Exhibit 20 hereto.


Item 9.01   Financial Statements and Exhibits.


         (c)      See attached Exhibit 20.


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                                   SIGNATURE


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                      NAVISTAR FINANCIAL 2004-B OWNER TRUST
             (Exact name of Registrant as specified in its charter)



Date:  FebruaryMarch 2528, 2005                                       By:/s/ PAUL E. MARTIN
-----------------------                          --------------------------
                                                 Paul E. Martin
                                                 Vice President & Controller


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                                  EXHIBIT INDEX

Exhibit No.    Description

   20          Navistar Financial 2004-B Owner Trust
               Monthly Servicer Certificate #34, dated FebruaryMarch 15, 2005


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                                   EXHIBIT 20

                                     Navistar Financial 2004 - B Owner Trust
                                              For the Month of JanuaryFebruary 2005
                                       Distribution Date of FebruaryMarch 15, 2005
                                                  Servicer Certificate  #34

Original Pool Amount                                                                                       $398,463,516.43
Subsequent Receivables (transferred 11/17/04)                                     $148,829,668.80
Subsequent Receivables (transferred 12/17/04)                                     $151,771,733.07
Subsequent Receivables (transferred 01/18/05)                                       $50,934,291.61
Beginning Pool Balance                                                                                   $703686,308843,965337.2772
Beginning Pool Factor                                                                                                 0.93321049157921

Principal and Interest Collections:
     Principal Collected (Incl. Servicer Advance Repay)                   $1618,299442,245209.8139
     Interest Collected                                                                                     $43,099990,026547.5966
     Mandatory Prepayments                                                                                             $7900.0900
Additional Deposits:

     Repurchase Amounts                                                                                                     $0.00

     Liquidation Proceeds / Recoveries                                                                  $17,7600.2300
Total Additional Deposits                                                                                            $17,7600.2300

Repos / Chargeoffs                                                                                                   $166190,381472.7499
Aggregate Number of Notes Charged Off                                        14                                       21

Total Available Funds                                                                                       $2022,416432,032757.6305

Ending Pool Balance                                                                                         $686668,843210,337655.7234
Ending Pool Factor                                                                                                       0.91579218909485

Servicing Fee                                                                                                             $586572,090369.8045
     memo: Servicer will allocate $1,500.00 of
           Servicing Fee as Administration Fee

Repayment of Servicer Advances                                                                                       $0.00
--------------------------------------------------------------------------------

Memo Item - Reserve Account:
     Prior Month Balance                                                                                      $1920,085605,345300.8613
Sub Sale 3                                                        $1,018,685.83
     Invest. Income                                                                                                        $3237,861876.5901
     Excess Serv.                                                      Service                                              $1,670488,688388.0056
     Transfer (to) Collections Acct.                                                                                  $0.00
                                                                                                                             -----------------
Beginning Balance                                                                                               $2122,807131,581564.2870
--------------------------------------------------------------------------------

Reserve Account:
     Beginning Balance  (see Memo Item)                                                   $2122,807131,581564.2870
     Target Percentage                                                                                                       3.00%
     Target Balance                                                                                           $20,605046,300319.1366
     Specified Yield Supplement Amount                                                                       $0.00
     Specified Yield Supplement Amount                                                                       $0.00
     Specified Reserve Account Balance                                                     $20,605046,300319.1366
     Minimum Balance                                                                                         $14,999,984.20
     (Release) / Deposit                                                                                 ($12,202085,281245.1504)
     Ending Balance                                                                                           $20,605046,300319.1366
--------------------------------------------------------------------------------
Current Weighted Average APR:                                                                                       7.065049%
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Current Weighted Average Remaining Term (months):                         49                        48.2966
--------------------------------------------------------------------------------
Delinquencies                                                                                                                     Dollars    Notes
                             Installments: 1 - 30 days             2            3,631307,934546.5201    23,757501
                                           31 - 60 days              513             564,799270.5698      492571
                                           60+  days                  55                 74,600995.7785       4662

                                    Total:                                                 3,201946,334812.8584    23,781502
                                 Balances: 60+  days               1              2,478346,167430.4392       4662


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Navistar Financial 2004 - B Owner Trust
For the Month of JanuaryFebruary 2005
                                                                                                                                         NOTES                                                                 CLASS B        CLASS C
                                                         TOTAL        CLASS A - 1         CLASS A - 2         CLASS A - 3     CLASS A - 4               NOTES          NOTES
                                             $750,000,000.00 $113,000,000.00 $240,000,000.00 $183,000,000.00 $169,000,000.00 $26,250,000.00 $18,750,000.00
Original Pool Amount

Distributions:
         Distribution Percentages  1                                100.00%           0.00%           0.00%           0.00%          0.00%                   0.00%
   
      Coupon                                                                          2.2000%         2.7200%         3.1300%         3.5300%        3.3900%               3.9300%

Beginning Pool Bal         $703686,308843,965337.2772
Ending Pool Balance       $686668,843210,337655.7234

Collected Principal         $1618,299442,245209.8139
Collected Interest             $43,099990,026547.5966
Charge - Offs                           $166190,381472.7499
Liquidation Proceeds
         Proceeds/Recoveries                     $17,7600.2300

Servicing &
         Administration Fee        $586572,090369.8045
Investment Earnings
         from Pre-Funding Acct         $73,8660.2500
Cash Transfer from
         Negative Carry Acct.                 $0.00
Cash Transfer from
         Pre-Funding Acct.          $7900.0900
Cash Transfer from
         Reserve Account                          $0.00
Total Collections Avail
         for Debt Svc              $1921,904860,598387.1760

Beginning Balance           $703686,309843,755337.3672  $6649,309843,755337.3672 $240,000,000.00 $183,000,000.00 $169,000,000.00 $26,250,000.00 $18,750,000.00

Interest Due 2                     $1,767739,492316.53     66      $11385,463287.3649     $544,000.00     $477,325.00     $497,141.67     $74,156.25     $61,406.25
Interest Paid                       $1,767739,492316.53     66      $11385,463287.3649     $544,000.00     $477,325.00     $497,141.67     $74,156.25     $61,406.25
Principal Due                     $1618,465632,627682.5538  $1618,465632,627682.5538           $0.00           $0.00           $0.00          $0.00          $0.00
Mandatory Prepayments
         Class A-1 only                          $7900.09         00           $7900.0900
Principal Paid                   $1618,466632,417682.6438  $1618,466632,417682.6438           $0.00           $0.00           $0.00          $0.00          $0.00


Ending Balance                 $686668,843210,337655.7234  $4931,843210,337655.7234 $240,000,000.00 $183,000,000.00 $169,000,000.00 $26,250,000.00 $18,750,000.00
Note/Certificate Pool Factor
       (Ending Balance/Original Pool Amt)                   0.44109152762005       1.0000000       1.0000000       1.0000000      1.0000000      1.0000000

Total Distributions         $1820,233371,910999.1704  $1618,579717,881969.0087     $544,000.00     $477,325.00     $497,141.67     $74,156.25     $61,406.25


Interest Shortfall                             $0.00           $0.00           $0.00           $0.00           $0.00          $0.00          $0.00
Principal Shortfall                           $0.00           $0.00           $0.00           $0.00           $0.00          $0.00          $0.00
               Total Shortfall                    $0.00           $0.00           $0.00           $0.00           $0.00          $0.00          $0.00
Excess Servicing
     (see Memo Item-
                   Reserve Acct      $1,670488,688388.0056

Beginning Reserve
     Acct Balance             $2122,807131,581564.2870
(Release)/Draw                   ($12,202085,281245.1504)
Ending Reserve
     Acct Balance             $20,605046,300319.1366

1) (a) 100% to the Class A-1 Notes until the Class A-1 Notes are paid in full.  (b) 94.00% of any amount remaining after the
   application of funds in clause (a) to the remaining Class A Notes sequentially until the Class A Notes are paid in full.  
   (c) 58.33%
 of any amount remaining after the application of funds in clauses (a) and  (b) to the Class B Notes until the Class B 
   Notes are paid
 in full.  (d) Any amount remaining after the application of funds in clauses (a), (b) and (c) to the Class C Notes 
   until the Class C
 Notes are paid in full.
2) Class A-1  Interest based on Actual Number of Days.  Interest on other classes based on a 30 day month.  Interest   for first
   settlement based off 28 days, from 11/17/04 to, but excluding, 12/15/04.

(* x represents previously paid interest to other classes.)
(* y represents previously paid interest and principal on other classes.)
=======================================================
Memo Item - Advances:
   Servicer Advances - Current Month             $496790,579843.4510
   Total Outstanding Servicer Advances     $23,447238,324167.3040
=======================================================


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Navistar Financial 2004 - B Owner Trust
For the Month of JanuaryFebruary 2005

Trigger Events:
AEventsA)  Loss Trigger
              B)  Delinquency Trigger
              C)  Noteholders Percent Trigger

                                                                                5                               4                                3                2              2                1                0
                                       Aug-04                                               Sep-04                  Oct-04                         Nov-04                   Dec-04           Jan-05           Feb-05

Remaining Gross Balance                  N/A            N/A            N/A               $441,897,747.66   $590,821,805.36   $740,229,491.93 $778,695,303.30

A)   Loss Trigger:
Principal of Contracts Charged Off       N/A            N/A            N/A             $42,639.97           $176,479.01           $166,381.74     $190,472.99

Recoveries                               N/A            N/A            N/A                                   $0.00                   $500.84             $17,760.23           $0.00

Total Charged Off (Months 5, 4, 3)       N\/A
Total Recoveries (Months 3, 2, 1)           $50018,261.8407
                                    ---------------
Net Loss / (Recoveries) for 3 Mos                  N\/A (a)

Total Balance (Months 5, 4, 3)              $0441,897,747.0066(b)

Loss Ratio Annualized  [(a/b) * (12)]    N\A         0.0000%

Trigger:  Is Ratio > 1.5%                                     No
                                                                                     Nov-04                                                                                                Dec-04                    Jan-05           Feb-05
B)   Delinquency Trigger:                                                                                                                   $460,732.07    $1,696,521.00      $1,478,167.43    $2,346,430.92
     Balance delinquency 60+ days                                                                                                          0.1042628715%                 0.2871519969%                0.1996930133%
     As % of Beginning Pool Balance                                                                                                             N/A             N/A                   0.19703%         0.26272%
     Three Month Average

     Trigger:  Is Average > 2.0%                       No

C)   Noteholders Percent Trigger:              2.7474%6728
     Ending Reserve Account Balance
     not less than 1% of Initial Aggregate
     Receivables Balance

Trigger:  Is Minimum < 1.0%                                No


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Navistar Financial 2004 - B Owner Trust
For the Period 1/18/05 through 2/15/05

Pre-Funding Account:

       Beginning Balance 1/18/05                                 $50,935,081.70
       Plus: Investment Earnings                                     $73,866.25
       Less: 1/18/05 Transfer to Seller                          $50,934,291.61
       Less: Investment Earnings to Collection Account               $73,866.25
                                                                 --------------
       Ending Balance 2/15/05                                           $790.09

       Less: 2/14/05 transfer to Collections Account                    $790.09
       (Mandatory pre-payment to Class A-1)
       Ending Balance 2/15/05                                             $0.00


Negative Carry Account:

       Beginning Balance 1/18/05                                    $280,597.68
       Plus: Investment Earnings                                      $3,257.31
       Less: 2/14/05 Negative Carry Amount to Collections Account         $0.00
       Less: Investment Earnings Distributed to Seller                $3,257.31
                                                                 --------------
       Subtotal                                                     $280,597.68
       Less: Required Negative Carry Account Balance                      $0.00
                                                                 --------------
       Subtotal: Excess over the Required Negative Carry Acct Bal   $280,597.68
       Less:  Excess released to Seller on 2/15/05                  $280,597.68

       Ending Account Balance 2/15/05                                     $0.00


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Filing Compare · Navistar Financial 2004-B Owner Trust
