<PAGE>
Exhibit 20.5
Page 1 of 3
Navistar Financial 1999 - A Owner Trust
For the Month of September 2000
Distribution Date of October 16, 2000
Servicer Certificate #17
<TABLE>
<S> <C>
Original Pool Amount $714,764,750.47
Subsequent Receivables (transferred 6/3/99) $0.00
Beginning Pool Balance $434,307,599.46
Beginning Pool Factor 0.6076231
Principal and Interest Collections:
Principal Collected (Incl. Servicer Advance Repay) $13,883,209.87
Interest Collected $2,982,720.26
Additional Deposits:
Repurchase Amounts $0.00
Liquidation Proceeds / Recoveries $634,138.83
Total Additional Deposits $634,138.83
Repos / Chargeoffs $907,881.51
Aggregate Number of Notes Charged Off 169
Total Available Funds $17,500,068.96
Ending Pool Balance $419,516,508.08
Ending Pool Factor 0.5869295
Servicing Fee $361,923.00
Repayment of Servicer Advances $0.00
Reserve Account:
Beginning Balance (see Memo Item) $23,122,616.42
Target Percentage 5.25%
Target Balance $22,024,616.67
Minimum Balance $14,295,295.01
(Release) / Deposit ($1,097,999.75)
Ending Balance $22,024,616.67
Current Weighted Average APR: 8.435%
Current Weighted Average Remaining Term (months): 35.59
<CAPTION>
Delinquencies Dollars Notes
<S> <C> <C> <C>
Installments: 1 - 30 days $2,850,159.07 2,483
31 - 60 days $879,582.41 616
60+ days $289,597.58 189
Total: $4,019,339.06 2,495
Balances: 60+ days $7,712,959.55 189
Memo Item - Reserve Account
Prior Month $22,801,148.97
+ Invest. Income $131,556.99
+ Excess Serv. $189,910.46
+ Transfer (to) / from Collections Account $0.00
Beginning Balance $23,122,616.42
</TABLE>
<PAGE>
Exhibit 20.5
Page 2 of 3
Navistar Financial 1999 - A Owner Trust
For the Month of September 2000
<TABLE>
<CAPTION>
NOTES
TOTAL CLASS A - 1 CLASS A - 2 CLASS A - 3 CLASS A - 4 CLASS B NOTES
<S> <C> <C> <C> <C> <C> <C>
$714,764,750.47 $147,000,000.00 $197,000,000.00 $200,000,000.00 $145,745,000.00 $25,019,750.47
Original Pool Amount
Distributions:
Distribution Percentages 0.00% 96.50% 0.00% 0.00% 3.50%
Coupon 5.0025% 5.5500% 5.9500% 6.1300% 6.2200%
Beginning Pool Balance $434,307,599.46
Ending Pool Balance $419,516,508.08
Collected Principal $13,883,209.87
Collected Interest $2,982,720.26
Charge - Offs $907,881.51
Liquidation Proceeds/Recoveries $634,138.83
Servicing $361,923.00
Cash Transfer from Reserve Account $0.00
Total Collections Available
for Debt Service $17,138,145.96
Beginning Balance $434,307,599.47 $0.00 $68,213,849.28 $200,000,000.00 $145,745,000.00 $20,348,750.19
Interest Due $2,157,144.12 $0.00 $315,489.05 $991,666.67 $744,514.04 $105,474.36
Interest Paid $2,157,144.12 $0.00 $315,489.05 $991,666.67 $744,514.04 $105,474.36
Principal Due $14,791,091.38 $0.00 $14,273,403.18 $0.00 $0.00 $517,688.20
Principal Paid $14,791,091.38 $0.00 $14,273,403.18 $0.00 $0.00 $517,688.20
Ending Balance $419,516,508.09 $0.00 $53,940,446.10 $200,000,000.00 $145,745,000.00 $19,831,061.99
Note / Certificate Pool Factor 0.0000 0.2738 1.0000 1.0000 0.7926
(Ending Balance / Original Pool Amount)
Total Distributions $16,948,235.50 $0.00 $14,588,892.23 $991,666.67 $744,514.04 $623,162.56
Interest Shortfall $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
Total Shortfall $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
(required from Reserve)
Excess Servicing $189,910.46
(see Memo Item - Reserve Account)
Beginning Reserve Acct Balance $23,122,616.42
(Release) / Draw ($1,097,999.75)
Ending Reserve Acct Balance $22,024,616.67
</TABLE>
<PAGE>
Exhibit 20.5
Page 3 of 3
Navistar Financial 1999 - A Owner Trust
For the Month of September 2000
Trigger Events:
A) Loss Trigger
B) Delinquency Trigger
C) Noteholders Percent Trigger
<TABLE>
<CAPTION>
5 4 3 2 1
May-00 Jun-00 Jul-00 Aug-00 Sep-00
<S> <C> <C> <C> <C> <C>
Beginning Pool Balance $502,327,257.81 $484,389,584.90 $466,968,567.50 $451,619,634.81 $434,307,599.46
A) Loss Trigger:
Principal of Contracts
Charged Off $950,683.77 $707,604.90 $769,977.20 $1,348,447.58 $907,881.51
Recoveries $707,246.95 $690,800.91 $936,067.84 $1,150,961.70 $634,138.83
Total Charged Off (Months 5, 4, 3) $2,428,265.87
Total Recoveries (Months 3, 2, 1) $2,721,168.37
Net Loss / (Recoveries) for 3 Mos ($292,902.50)(a)
Total Balance (Months 5, 4, 3) $1,453,685,410.21 (b)
Loss Ratio Annualized [(a/b) * (12)] -0.2418%
Trigger: Is Ratio > 1.5% No
Jul-00 Aug-00 Sep-00
B) Delinquency Trigger: $6,615,852.91 $6,437,975.96 $7,712,959.55
Balance delinquency 60+ days 1.41677% 1.42553% 1.77592%
As % of Beginning Pool Balance 1.26862% 1.39704% 1.53941%
Three Month Average
Trigger: Is Average > 2.0% No
C) Noteholders Percent Trigger: 3.08138%
Ending Reserve Account Balance
not less than 1% of Initial Aggregate
Receivables Balance
Trigger: Is Minimum < 1.0% No
</TABLE>
Navistar Financial Corporation
by: /s/ R. W. Cain
R. W. Cain
Vice President and Treasurer
