385
The Peterbilt 385 is a Class 8 aerodynamic vocational and highway truck, produced from 1996 to around 2007. It was positioned as a more compact and versatile alternative to the 379, with improved maneuverability and aerodynamics, making it a strong performer in both vocational and regional haul roles.
The Peterbilt 385 is commonly used for:
- Regional freight and distribution
- Bulk commodities and tanker
- Flatbed and construction materials
- Logging and agricultural transport
- Mixer, dump, and vocational body installs
With its shorter bumper-to-back-of-cab length and lighter frame, the 385 was ideal for applications that needed both durability and agility.
Cab Type
- Cab Style: Conventional narrow-body
- Cab Width: ~1.9 meters (75 inches)
- Configuration options included:
- Day cab
- Flat top sleeper
- Mid-roof sleeper
 
- Shares cab structure with the 375, 377, 378, and 379
Aftermarket Seat Compatibility
The Peterbilt 385 uses the standard vocational bolt pattern: 4.68" x 12"
This means most aftermarket seats will bolt in directly without an adaptor.
Installation Notes
- No adaptor needed for standard installs
- Verify vertical clearance in flat-top sleepers or day cabs before installing taller seat models
- Consider seat height vs. steering wheel tilt and legroom for driver ergonomics
- 
              GraMag Mid Back Black Genuine Leather with Heat and Vent Option Truck SeatGRAMAG Your Price: 2,524.11CAD - 3,111.44CADGraMag mid back semi truck seat in black Genuine Leather with black or grey stitching with air suspension for aftermarket seating for International, Freightliner, Kenworth, Volvo, Peterbilt semi trucks. On-Highway seat ideal for...AF-21103LEYour Price: 2,524.11CAD - 3,111.44CAD
- 
            On Sale  GraMag Mid Back SteadyRide MR (smart fluid) Black Leather Truck SeatGRAMAG Now: 5,506.90CADWas: 6,048.08CADGraMag Mid Back SteadyRide semi truck seat in black leather with black stitching will easily install in most all semi-truck cabs. The on-highway seat is ideal for long haul environments as it reduces whole-body-vibration up to 67%. ...AF-22013LENow: 5,506.90CADWas: 6,048.08CAD
- 
            On Sale  GraMag Mid Back SteadyRide MR (smart fluid) with Heat and Vent Truck SeatGRAMAG Your Price: 5,712.46CAD - 5,852.30CADGraMag Mid Back SteadyRide semi truck seat in black leather black stitching will easily install in most all semi-truck cabs. This seat includes Heating and Venting. The on-highway seat is ideal for long haul environments as it reduces...AF-22113LEYour Price: 5,712.46CAD - 5,852.30CAD
- 
            On Sale  GraMag SteadyRide MR (smart fluid) Black Cloth Truck SeatGRAMAG Now: 5,157.30CADWas: 5,670.51CADGraMag SteadyRide semi truck seat in black Cloth with your choice of (black, grey, tan) stitching will easily install in most all semi-truck cabs. The on-highway seat is ideal for long haul environments as it reduces whole-body-vibration...AF-12013CLNow: 5,157.30CADWas: 5,670.51CAD
- 
            On Sale  GraMag SteadyRide MR (smart fluid) Black Leather Truck SeatGRAMAG Now: 5,506.90CADWas: 6,048.08CADGraMag SteadyRide semi truck seat in black leather with your choice of (black, grey, tan) stitching will easily install in most all semi-truck cabs. The on-highway seat is ideal for long haul environments as it reduces...AF-12013LENow: 5,506.90CADWas: 6,048.08CAD
- 
            On Sale  GraMag SteadyRide MR (smart fluid) Black Leather with Heat and Vent Truck SeatGRAMAG Now: 5,712.46CADWas: 6,277.42CADGraMag SteadyRide semi truck seat in black leather with your choice of (black, grey, tan) stitching will easily install in most all semi-truck cabs. This seat includes Heating and Venting. The on-highway seat is ideal for long haul...AF-12113LENow: 5,712.46CADWas: 6,277.42CAD
- 
              Knoedler Air Chief Puffy Seat (choose your options)Knoedler Manufacturers Your Price: 2,318.55CAD - 2,559.07CADThe Knoedler Air Chief line offers a customizable seat to meet the individual needs of drivers rather than a one seat fits all solution. All seats come standard with the following features: Puffy Overstuffed Channeled upholstery construction in...Air Chief with 730252-000Your Price: 2,318.55CAD - 2,559.07CAD
- 
              Knoedler Air Chief Seat (choose your options)Knoedler Manufacturers Your Price: 1,760.59CAD - 2,711.50CADThe Knoedler Air Chief line offers a customizable seat to meet the individual needs of drivers rather than a one seat fits all solution. All seats come standard with the following features: Upper and Lower Air Adjustable lumbar Color Definition ...Air ChiefYour Price: 1,760.59CAD - 2,711.50CAD
- 
              Knoedler Air Chief Tall Back Seat (choose your options)Knoedler Manufacturers Your Price: 1,819.32CAD - 2,711.50CADIntroducing the new Tall Back seat from Knoedler Manufacturers. The Tall Back seat is part of the Air Chief line. The main difference is a switch from the mid back with headrest design to the full/tall back style. All options available...Air Chief Tall BackYour Price: 1,819.32CAD - 2,711.50CAD
- 
              Knoedler Harrier (choose your options)Knoedler Manufacturers Your Price: 1,518.66CADThe Knoedler Harrier is an x-type air suspension seat with optional isolator lock out. The Harrier has been recently expanded to include a mid back, high back (Standard) and Tall Back Option, with optional arms, bellow cover and wide seat. ...9410Your Price: 1,518.66CAD
- 
              National Admiral (choose your options)National Seating Your Price: 1,995.52CAD - 3,294.63CADThe 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: 1,995.52CAD - 3,294.63CAD
- 
              National Admiral CT (choose your options)National Seating Your Price: 2,757.83CAD - 3,077.85CADThe Admiral CT is the top of the line seat from National for comfort behind the wheel and includes Comfort Tek air circulation through out the seat. As a step up from the Admiral, the Admiral CT includes swivel and heat as well as cooling. Combine...40149/40179Your Price: 2,757.83CAD - 3,077.85CAD
