United Pacific 29023: Peterbilt 579 back upper-step trim
United Pacific 29023 is the pair of 430 stainless steel trim pieces for the back upper step on listed Peterbilt 579 trucks. The manufacturer specifies supplied mounting hardware and 3M double-sided tape. Choose the part by step position as well as truck model.
Fitment and equipment checks
Listed for 2013–2021 Peterbilt 579. Match the back upper-step contour, surrounding panels and attachment points. A front, back-upper or back-lower trim piece is a separate shape.
Specifications and package contents
- Part number: 29023
- Material: 430 stainless steel
- Position: Peterbilt 579 back upper-step trim
- Mounting: Supplied hardware and 3M double-sided tape
- Package quantity: Pair
- Warranty: 6-month warranty listed by BTS
Installation notes
Trial-position the trim at its named step location and check the contour before exposing tape or fastening hardware. The supplied tape guide calls for a clean, thoroughly dry surface and a body-surface temperature of at least 60°F. Keep contaminants off the adhesive and apply firm pressure after aligning the pieces. Use both the specified hardware and tape rather than treating the trim as a tape-only part.
What is included
One pair of 29023 back upper-step trim pieces with supplied hardware and 3M tape. Other step positions and complete step assemblies are separate.
Questions about United Pacific 29023
Which step position does 29023 cover?
This is the back upper-step trim for the listed 2013–2021 Peterbilt 579 application. Match that position on the actual truck.
Does one order include every step-trim position?
No. Part 29024 covers the front step, 29023 the back upper step and 29022 the back lower step. Each product is sold separately as a pair.
Can I install it with tape alone?
United Pacific specifies both supplied hardware and 3M double-sided tape. Confirm the attachment points and follow the supplied mounting arrangement.
Is this a complete replacement step?
No. It is stainless trim for the existing step. Inspect and repair the step and structural supports separately.
What should I check before attaching the trim?
Trial-fit the contour and verify the mounting points. Clean and thoroughly dry the bonding surface before exposing tape; confirm any changed fairing or step arrangement with BTS.
