United Pacific 20585: Peterbilt 378/379 front fender guards
United Pacific 20585 is a pair of highly polished 304 stainless steel front fender guards for the listed Peterbilt 378 and 379 applications. This design mounts to the existing front fender support bracket, so inspect that bracket and compare the mounting shape before ordering.
Fitment and equipment checks
Listed for 1988–1999 Peterbilt 378 and 1988–2007 Peterbilt 379. Confirm the existing front fender support bracket and guard contour, especially on a truck with changed fenders or brackets.
Specifications and package contents
- Part number: 20585
- Material: Highly polished 304 stainless steel
- Position: Peterbilt 378/379 front fender guards
- Mounting: Existing front fender support bracket
- Package quantity: Pair of guards or trim pieces
- Warranty: 6-month warranty listed by BTS
Installation notes
Inspect the existing front fender support brackets before fitting the guards. Compare the mounting points and clearances before tightening hardware. A worn, corroded or damaged support bracket needs separate attention; do not use decorative guards as a structural repair.
What is included
Two 20585 front fender guards. The existing support brackets are reused; confirm any required fasteners before installation.
Questions about United Pacific 20585
What does 20585 mount to?
The manufacturer specifies the existing front fender support bracket. Compare its shape, condition and mounting points before ordering.
Which Peterbilt years are listed?
The listed applications are 1988–1999 Peterbilt 378 and 1988–2007 Peterbilt 379. Check altered brackets or fenders separately.
Does the package include both front guards?
Yes. The manufacturer package specification lists two highly polished 304 stainless pieces.
Are new fender support brackets included?
The guards are designed to mount to the existing bracket. Replacement brackets and any required fasteners should be confirmed separately.
Is this the same as the headlight-mount guard?
No. United Pacific 20584 is a separately identified guard with a headlight-mount feature. Compare the required mounting design before choosing.











