              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) DecemberJanuary 1518, 20042005


                     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


--------------------------------------------------------------------------------

                    INFORMATION TO BE INCLUDED IN THE REPORT


Item 8.01.  Other Events.


            On DecemberJanaury 1518, 20042005, the Registrant made available the
            Monthly Servicer Certificate for the Period of NovemberDecember 2004
            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:  DecemberJanuary 2227, 2004                                     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 #12, dated DecemberJanuary 1518, 20042005


================================================================================


                                   EXHIBIT 20

                    Navistar Financial 2004 - B Owner Trust
                         For the Month of NovemberDecember 2004
                     Distribution Date of DecemberJanuary 1518, 20042005
                                                     Servicer Certificate  #12

Original Pool Amount                                                                                     $398,463,516.43
Subsequent Receivables (transferred 11/17/04)                                   $148,829,668.80
Subsequent Receivables (transferred 0012/0017/0004)                                             $0151,771,733.0007
Subsequent Receivables (transferred 00/00/00)                                                       $0.00
Beginning Pool Balance                                                                                 $547670,293463,185666.2309
Beginning Pool Factor                                                1                                               0.00000009477405

Principal and Interest Collections:
     Principal Collected (Incl. Servicer Advance Repay)                 $2818,558361,612608.2469
     Interest Collected                                                                                   $54,544041,201762.3256
     Mandatory Prepayments                                                                                             $0.00
Additional Deposits:

     Repurchase Amounts                                                                                                   $0.00

     Liquidation Proceeds / Recoveries                                                                   $0500.0084
Total Additional Deposits                                                                                             $0500.0084

Repos / Chargeoffs                                                                                                  $42176,639479.9701
Aggregate Number of Notes Charged Off                                        1                                       7

Total Available Funds                                                                                     $3421,102954,813776.5682

Ending Pool Balance                                                                                       $518652,691374,933673.0266
Ending Pool Factor                                                                                                     0.94774059332104

Servicing Fee                                                                                                           $912558,155719.3172
memo:  Servicer will allocate $1,500.00 of Servicing
       Fee as Administration Fee

Repayment of Servicer Advances                                           
Note / Certificate Pool Factor                                    $0449,095.0027
-------------------------------------------------------------------------------
Memo Item - Reserve Account:
     Prior(Ending Month Balance                                          / Original Pool Amount)                   $714,969267,270654.3300
     TransPrior Base                                                  Month Balance                                                $0.00
     Sub Sale 2                                                 $3,976035,593434.3866
     Invest. Income                                                                                                  $415,267569.9274
     Excess Serv.                                                                                               $31,321782,790257.2920
     Transfer (to)                                                                                                             $0.00
                                                                                                             -------------------------------
     Collections Acct
     Beginning Balance                                                                                   $1419,271100,921915.9260
-------------------------------------------------------------------------------
Reserve Account:
     Beginning Balance  (see Memo Item)                                                 $1419,271100,921915.9260
     Target Percentage                                                                                                     3.00%
     Target Balance                                                                                         $1519,560571,757240.9921
     Specified Yield Supplement Amount                                                                     $0.00
     Specified Yield Supplement Amount                                                                     $0.00
     Specified Reserve Account Balance                                                   $1519,560571,757240.9921
     Minimum Balance                                                                                       $1013,945981,863298.7037
     (Release) / Deposit                                                                                      ($415,267569.9274)
     Ending Balance                                                                                         $1419,267085,654345.0086
-------------------------------------------------------------------------------
Current Weighted Average APR:                                                                                     7.059138%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
Current Weighted Average Remaining Term (months):                        51                       50.4823
-------------------------------------------------------------------------------
Delinquencies                                                                                                                   Dollars                 Notes
                                                                                                              -----------------  ---------------      -----------
     Installments:                                               1 - 30 days                          2,208323,938323.16     87            2,299409
                                                                                   31 - 60 days       218                     357,518315.86       22117              390
                                                                                   60+  days           37                         55,063955.92        1830               49

     Total:                                                                                                             2,464736,520594.94     34            2,299409

     Balances:                                                       60+  days          460                      1,732696,521.07        1800               49


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Navistar Financial 2004 - B Owner Trust
For the Month of NovemberDecember 2004

                                                                            NOTES                         CLASS B       CLASS C
                                                         TOTAL              CLASS A - 1      CLASS A - 2          CLASS A - 3         CLASS A - 4            CLASS B NOTES           CLASS C NOTES
Original Pool Amount   $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
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 Balance $547670,293463,185666.2309
Ending Pool Balance    $518652,691374,933673.0266

Collected Principal     $2817,558912,612513.2442
Collected Interest       $54,544041,201762.3256
Charge - Offs                             $42176,639479.9701
Liquidation
      Proceeds
    /Recoveries                         $0500.0084

Servicing &
         -Administration Fee    $912558,155719.3172
Investment Earnings
     from from
    Pre-Funding Acct.        $59304,873583.1354
Cash Transfer from
         Negative Carry Acct.           $409,6270.2300
Cash Transfer from
     Pre-Funding Acct.           $0.00
Cash Transfer from
     Reserve Account             $0.00
Total Collections Avail
     for Debt Service   Svc       $3321,660700,158640.6164

Beginning Balance      $750721,000398,000747.00 79  $11384,000398,000747.0079 $240,000,000.00 $183,000,000.00 $169,000,000.00 $26,250,.000.00 $18,750,000.00

Interest Due 2           $1,737829,116391.1101     $193175,355361.5684     $507544,733000.3300     $445477,503325.3300     $463497,998141.8967     $6974,212156.5025     $5761,312406.5025
Interest Paid            $1,737829,116391.1101     $193175,355361.5684     $507544,733000.3300     $445477,503325.3300     $463497,998141.8967     $6974,212156.5025     $5761,312406.5025
Principal Due           $2818,601088,252992.2143  $2818,601088,252992.2143           $0.00           $0.00           $0.00          $0.00          $0.00
Mandatory Prepayments
    Class A-1 only               $0.00           $0.00
Principal Paid          $2818,601088,252992.2143  $2818,601088,252992.2143           $0.00           $0.00           $0.00          $0.00          $0.00


Ending Balance         $721703,398309,747755.7936  $8466,398309,747755.7936 $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 AmtAmount)                          0.74689165868120       1.0000000       1.0000000       1.0000000      1.0000000      1.0000000
 Total DistributionsDistribution     $3019,338918,368383.3244  $2818,794264,607354.7727     $507544,733000.3300     $445477,503325.3300     $463497,998141.89     67      $6974,212156.50     25    $5761,312406.5025

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 Bal  )   $31,321782,790257.2920
        Beginning
       Reserve Reserve
         Acct Bal        $1419,271100,921915.9260
        (Release) /Draw Ending    Draw      ($415,267569.9274)
       Reserve     Ending Reserve
         Acct Bal        $1419,267085,654345.0086

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          ($2449,399,840095.1227)
    Total Outstanding Servicer Advances     $21,399950,840744.1285
------------------------------------------------------


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Navistar Financial 2004 - B Owner Trust
For the Month of NovemberDecember 2004


Trigger Events:
A) Loss Trigger
B) Delinquency Trigger
C) Noteholders Percent Trigger
                                                                                     5                 4                             3             2            1               1                0
                                        Jun-04                                                 Jul-04                    Aug-04                   Sep-04        Oct-04                   Nov-04           Dec-04

Remaining Gross Balance                  N/A               N/A                         N/A           N/A          N/A         $441,897,747.66  $590,821,805.36

A) Loss Trigger:
Principal of Contracts Charged Off       N/A               N/A                         N/A           N/A          N/A                   $42,639.97      $176,479.01
Recoveries                               N/A               N/A                         N/A           N/A          N/A                             $0.00          $500.84

Total Charged Off (Months 5,4,3)         N/\A
Total Recoveries (Months 3,2,1)                     $0.00
                                                                       --------------
Net Loss/(Recoveries) for 3 Mos          N/\A       (a)

Total Balance (Months 5,4,3)                           $0.00 (b)

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

Trigger: Is Ratio > 1.5%                  No

                                                                                    Sep-04                                                                                               Oct-04                   Nov-04           Dec-04
B) Delinquency Trigger:
       Balance delinquency 60+ days                                                                                                                     N/A          N/A            $460,732.07
    $1,696,521.00
   As % of Beginning Pool Balance                                                                                                                 N/A          N/A                  0.10426%         0.28715%
       Three Month Average                                                                                                                                       N/A                     N/A                             N/A

Trigger: Is Average > 2.0%                No

C) Noteholders Percent Trigger:         2.7301%
       Ending Reserve Account Balance            2.6069%
       not less than 1% of Initial Aggregate
       Receivables Balance

Trigger: Is Minimum < 1.0%                                 No


------------------------------------------------------------------------------------------------------------------------------------


Navistar Financial 2004 - B Owner Trust


For the Period 12/0116/04 through 121/1518/0405


          Pre-Funding Account:

                   Beginning Balance 12/0116/04                                                                         $202,706,814.77
                   Plus: Investment Earnings                                                                                    $59304,873583.1354
                   Less: xx12/xx17/xx04 Transfer to Seller                                                                     $0151,771,733.0007
                   Less: Investment Earnings to Collection Account                                        $59304,873583.1354
                                                                                                                                     ------------------------
                   Ending Balance 121/1518/04                                            05                                     $20250,706935,814081.7770
                                                        ========================

        


  Negative Carry Account:

                   Beginning Balance 12/0116/04                                                                             $31,219526,792216.7092
                   Plus: Investment Earnings                                                                                         $8304,003.4749
                   Less: 121/14/0405 Negative Carry Amount to Collections Account                      $409,6270.2300
                   Less: Investment Earnings Distributed to Seller                                             $8304,003.4749
                                                                                                                                    -------------------------
                   Subtotal                                                                                                                 $21,810526,165216.4792
                   Less: Required Negative Carry Account Balance                                         $1280,526,216597.9268
                                                                                                                                    -------------------------
                   Subtotal:  Excess over the Required Negative 
                 Carry Account Balance                               $1,283245,948619.5524
                   Less:  Excess released to Seller on 121/1518/04                         05                 $1,283245,948619.5524

                   Ending  Account Balance 121/1518/04                                     05                               $1280,526,216597.9268
                                                       =========================

====================================================================================================================================
Filing Compare · Navistar Financial 2004-B Owner Trust
