K100 Cab Over
Kenworth K100 — Classic Cabover, Timeless Utility
The Kenworth K100 is an iconic Class 8 cab-over-engine (COE) truck, known for its space-efficient design and distinctive styling. Once a staple of fleet operations and long-haul routes, the K100 remains a favorite among collectors, restorers, and specialty haulers.
Key Specs:
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Class 8 Cabover (COE)
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Known for tight turning radius and maximized trailer length
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Popular in long-haul, urban freight, and fleet use
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Variants include flat top, sleeper, and Aerodyne sleeper cab
Aftermarket Seating for the Kenworth K100
Upgrading the seat in a Kenworth K100 can dramatically improve comfort—especially given the stiffer ride and limited cabin space of traditional COE trucks.
Fitment Considerations:
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The K100 typically uses low- to mid-profile seats due to its limited headroom and cab height.
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Standard bolt patterns were used in most K100 models, but variations exist, especially in custom or rebuilt cabs.
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Floor contours and seat base height should be carefully measured—older cabover floors may require shims or custom risers to accommodate modern suspension seats.
Recommended Features for K100 Seat Upgrades:
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Low-profile suspension system
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Compact or short backrest design
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Narrow seat width options to fit the confined cab layout
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Air lumbar and adjustable dampening to reduce fatigue
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Swivel base (if cab allows) for improved entry/exit
Important Note:
Some K100 restorations may involve updated floors, interior kits, or seat brackets. Always measure and compare the mounting footprint and clearance before purchasing a new seat.
Need help finding the right fit? Seat Specialists offers seating solutions from the top manufacturers and can help match your K100 with a modern seat tailored to your cab’s needs.
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GraMag Mid Back Black Genuine Leather with Heat and Vent Option Truck Seat
GRAMAG
Your Price: 2,546.49CAD - 3,139.03CADGraMag 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: 2,546.49CAD - 3,139.03CAD -
On Sale
GraMag Mid Back SteadyRide MR (smart fluid) Black Leather Truck Seat
GRAMAG
Now: 5,555.73CADWas: 6,101.71CADGraMag 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: 5,555.73CADWas: 6,101.71CAD -
On Sale
GraMag Mid Back SteadyRide MR (smart fluid) with Heat and Vent Truck Seat
GRAMAG
Your Price: 5,763.12CAD - 5,904.20CADGraMag 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: 5,763.12CAD - 5,904.20CAD -
On Sale
GraMag SteadyRide MR (smart fluid) Black Cloth Truck Seat
GRAMAG
Now: 5,203.03CADWas: 5,720.79CADGraMag 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: 5,203.03CADWas: 5,720.79CAD -
On Sale
GraMag SteadyRide MR (smart fluid) Black Leather Truck Seat
GRAMAG
Now: 5,555.73CADWas: 6,101.71CADGraMag 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: 5,555.73CADWas: 6,101.71CAD -
On Sale
GraMag SteadyRide MR (smart fluid) Black Leather with Heat and Vent Truck Seat
GRAMAG
Now: 5,763.12CADWas: 6,333.08CADGraMag SteadyRide semi truck seat in black leather with your choice of (black, grey, tan) stitching will easily install in most all semi-truck cabs. This seat includes Heating and Venting. The on-highway seat is ideal for long haul...AF-12113LENow: 5,763.12CADWas: 6,333.08CAD -
Knoedler Air Chief Puffy Seat (choose your options)
Knoedler Manufacturers
Your Price: 2,339.11CAD - 2,581.76CADThe 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: 2,339.11CAD - 2,581.76CAD -
Knoedler Air Chief Seat (choose your options)
Knoedler Manufacturers
Your Price: 1,776.20CAD - 2,735.54CADThe 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...Air ChiefYour Price: 1,776.20CAD - 2,735.54CAD -
Knoedler Air Chief Tall Back Seat (choose your options)
Knoedler Manufacturers
Your Price: 1,835.45CAD - 2,735.54CADIntroducing 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: 1,835.45CAD - 2,735.54CAD -
Knoedler Harrier (choose your options)
Knoedler Manufacturers
Your Price: 1,532.13CADThe 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: 1,532.13CAD -
National Admiral (choose your options)
National Seating
Your Price: 2,013.21CAD - 3,323.84CADThe 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: 2,013.21CAD - 3,323.84CAD -
National Admiral CT (choose your options)
National Seating
Your Price: 2,782.28CAD - 3,105.14CADThe 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: 2,782.28CAD - 3,105.14CAD