<PAGE>
Filed under Rule 424 (b) (3)
File No. 333-01623
SUPPLEMENT NO. 42 TO PROSPECTUS DATED MARCH 15, 1996
(AS SUPPLEMENTED MARCH 15, 1996)
PACCAR FINANCIAL CORP.
MEDIUM-TERM NOTES, SERIES H
DUE FROM 9 MONTHS TO 10 YEARS FROM DATE OF ISSUE
INTEREST PAYABLE EACH MARCH 15 AND SEPTEMBER 15 AND AT MATURITY
<TABLE>
<CAPTION>
INTEREST RATE
RANGE OF MATURITIES PER ANNUM
- ------------------- ---------
<S> <C>
More than 32 months to 36 months.............. 5.840%
More than 39 months to 43 months.............. 5.910%
</TABLE>
Dated: August 13, 1998
Form of Note (check one): Book Entry [X]
Certificated [ ]
In some instances, one or more of the Agents have purchased the Notes as
principal and may resell the Notes at prices to be determined by such Agents at
the time of resale.
