2021-2025+
The Peterbilt 535 and Peterbilt 536 are part of Peterbilt’s new-generation medium-duty lineup, launched in 2021. They are built on the same redesigned platform and feature the 2.1-meter wide cab, similar to Peterbilt’s larger highway trucks and the Kenworth T180/T280.
- Peterbilt 535: Designed for non-CDL Class 5 applications (GVWR under 26,000 lbs).
- Peterbilt 536: Built for CDL-required Class 6 jobs (GVWR up to 33,000 lbs).
Both trucks offer a modern, aerodynamic design with improved visibility, ergonomics, and driver comfort—ideal for fleet operations and vocational work that values uptime, comfort, and safety.
| Model | Typical Applications |
|---|---|
| 535 | Pickup & delivery, light-duty flatbed, utility, small box or reefer |
| 536 | Regional delivery, medium-duty dump, tow & rollback, municipal utility |
Cab Type: 2.1-Meter Wide Cab
- Same cab shell used in Peterbilt 567 and Kenworth T280.
- Offers more interior space, wider seats, and highway-style dash ergonomics.
- Available in vocational trim or premium interior, depending on spec.
Aftermarket Seat Compatibility
Because the 535 and 536 use the 2.1m wide cab, they do require a seat adaptor plate for most aftermarket seating. The bolt pattern differs from the traditional 4.68" x 12" vocational standard and aligns more closely with the 6" x 12" wide-body layout used in other 2.1m-cab Peterbilt and Kenworth models.
Popular aftermarket options:
- National Admiral or Commodore – requires 2.1m adaptor plate for HP suspension
- Knoedler Air Chief – requires 2.1m adaptor plate
- Gramag Smart MR – available with specific adaptor for 2.1m cabs
Installation Notes
- Confirm 2.1m cab by VIN, door label, or spec sheet.
- Use seat-specific adaptors to match bolt pattern and elevation.
- For electric/heated seats, check for power supply availability in-cab.
- Allow room for seat travel; some wide suspension bases may restrict movement against the door or console.
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National Admiral (choose your options)
National Seating
Your Price: 1,974.40CAD - 3,259.76CADThe Admiral is the top of the line seat from National for comfort behind the wheel. As a step up from the Commodore, the Admiral includes both swivel and heat as well as adjustable damper. This seat packs a lot of value for the price...40049/40079Your Price: 1,974.40CAD - 3,259.76CAD -
National Captain Seat (choose your options)
National Seating
Your Price: 1,028.01CAD - 1,303.35CADNational Captain Seat (50766 low, 50765 mid, 50764 high) is the low cost fleet seat of choice. The Captain series is built using National Seating's top selling truck seat platform which is known for its ergonomic comfort and low cost of ownership...5076(4,5,6).xxxYour Price: 1,028.01CAD - 1,303.35CAD -
National Commodore Seat (choose your options)
National Seating
Your Price: 1,678.31CAD - 2,078.17CADNational Commodore Seat (40050) is the long haul seat of choice. The Commodore truck seat helps ensure you get maximum uptime by helping to reduce the pain and strain which leads to increased downtime. The Commodore is the first in the National...40050Your Price: 1,678.31CAD - 2,078.17CAD