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Seats Base Adapters & Covers

We offer a wide range of premium semi-truck seating options from industry leaders like Bostrom, Seats Inc., and Knoedler. Elevate your driving experience with our luxurious choices, including air ride, legacy, and aftermarket truck seats, all designed for maximum comfort during long hauls. Whether you drive a Peterbilt, Kenworth, Freightliner, or any major make, we have a variety of seats to choose from.
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  • Air Lumbar Bag Bolster For National Truck Seat

    Air Lumbar Bag Bolster For National Truck Seat

    NATIONAL SEATING

    $21.01
    Air Lumbar Bag Bolster* High Quality Air Lumbar Bag* Bolster* For National Seat* Sold Individually* Warranty On Air Lumbar Bag Against Defects In Workmanship & Material From Date Of Purchase*** High...
    22979801
    SKU:
    22979801
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $21.01
    Qty in Cart: 0
    Price:
    $21.01
    Subtotal:
  • On Sale
    Limited Quantity Available
    Blue Ultra Leather Truck Seat Armrest, Driver Side

    Blue Ultra Leather Truck Seat Armrest, Driver Side

    BOSTROM TRUCK SEATS

    Now: $25.81
    Was: $100.99
    Blue Ultra Leather Truck Seat Armrest, Driver Side* High Quality Armrest* Ultra Leather* Blue* Driver Side * Sold Individually* Warranty On Armrests Against Defects In Workmanship & Material From...
    1234042904
    SKU:
    1234042904
    Truck Class:
    Heavy Duty
    Color:
    Blue
    Material Options:
    Ultra Leather
    Product Type:
    Seats
    Make:
    Universal Items
    Position:
    Driver Side
    Ready To Ship:
    Yes
    Now: $25.81
    Was: $100.99
    Qty in Cart: 0
    Price:
    Now: $25.81
    Was: $100.99
    Subtotal:
  • Bostrom 915 Seat Cushion Foam Replacement

    Bostrom 915 Seat Cushion Foam Replacement

    BOSTROM TRUCK SEATS

    $75.99
    Bostrom Seat Cushion Foam Only* High Quality Seat Cushion * 915* Foam* Sold Individually* Warranty On Seat Cushions Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    6201089001
    SKU:
    6201089001
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Material Options:
    Foam
    Make:
    Universal Items
    $75.99
    Qty in Cart: 0
    Price:
    $75.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Bostrom Seat Isolator Spring Kit

    Bostrom Seat Isolator Spring Kit

    BOSTROM TRUCK SEATS

    Now: $7.28
    Was: $29.15
    Bostrom Replacement Isolator Spring Kit* High Quality Spring Kit Isolator* 1/4 Inch Thick* Urethane* Sold Individually* Warranty On Spring Kits Against Defects In Workmanship & Material From Date Of...
    6222133001
    SKU:
    6222133001
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Ready To Ship:
    Yes
    Make:
    Universal Items
    Now: $7.28
    Was: $29.15
    Qty in Cart: 0
    Price:
    Now: $7.28
    Was: $29.15
    Subtotal:
  • On Sale
    Bostrom Seat Tilt Kit For Wide Ride Truck Seat

    Bostrom Seat Tilt Kit For Wide Ride Truck Seat

    BOSTROM TRUCK SEATS

    Now: $15.41
    Was: $48.25
    Bostrom Replacement Seat Tilt KitThe Replacement Tilt Rod and Handle Assembly is designed for all Bostrom Wide Ride seats. This kit offers a simple solution for replacing any worn-out or damaged tilt...
    6222071001
    SKU:
    6222071001
    Product Type:
    Seats
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Now: $15.41
    Was: $48.25
    Qty in Cart: 0
    Price:
    Now: $15.41
    Was: $48.25
    Subtotal:
  • On Sale
    Limited Quantity Available
    Bostrom Seat Dual Air Lumbar Bladder Replacement

    Bostrom Seat Dual Air Lumbar Bladder Replacement

    BOSTROM TRUCK SEATS

    Now: $14.00
    Was: $56.99
    Bostrom Replacement Dual Air Lumbar Bag* High Quality Air Lumbar Bladder* Replacement Part For Bostrom Wide Ride, Liberty II & T-Series Seat* Dual Air* Provides Additional Lumbar Support* Sold...
    6222141001
    SKU:
    6222141001
    Product Type:
    Seats
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $14.00
    Was: $56.99
    Qty in Cart: 0
    Price:
    Now: $14.00
    Was: $56.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Stainless Steel Spring Latch with Holdback

    Stainless Steel Spring Latch with Holdback

    BOSTROM TRUCK SEATS

    Now: $0.35
    Was: $2.44
    Bostrom Truck Seat Replacement Part - Spring Latch* High Quality Spring Latch* Stainless Steel* Sold Individually* Warranty On Spring Latches Against Defects In Workmanship & Material From Date Of...
    6112301001
    SKU:
    6112301001
    Product Type:
    Seats
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $0.35
    Was: $2.44
    Qty in Cart: 0
    Price:
    Now: $0.35
    Was: $2.44
    Subtotal:
  • Bostrom ProRide LoPro Truck Seat, Hi-Back - Gray Cloth

    Bostrom ProRide LoPro Truck Seat, Hi-Back - Gray Cloth

    BOSTROM TRUCK SEATS

    $1,013.99
    Pro Ride LoPro Suspension Drape Hi-Back Rest Titan Cloth Seat* High Quality Seat* Gray* Sold Individually* Warranty On Seats Against Defects In Workmanship & Material From Date Of Purchase*** High...
    9220011K86
    SKU:
    9220011K86
    Color:
    Gray
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Make:
    Universal Items
    $1,013.99
    Qty in Cart: 0
    Price:
    $1,013.99
    Subtotal:
  • I-Shift Bracket For Truck Seat Base Adapter For Volvo

    I-Shift Bracket For Truck Seat Base Adapter For Volvo

    SEATS INC

    $62.99
    Volvo I-Shift Bracket For Truck Seat Base Adapter* High Quality Shift Bracket* For Seats Inc Seat Base Adapters * Sold Individually* Warranty On Shift Brackets Against Defects In Workmanship &...
    183060PS
    SKU:
    183060PS
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Make:
    Volvo
    Ready To Ship:
    Yes
    $62.99
    Qty in Cart: 0
    Price:
    $62.99
    Subtotal:
  • Seat Base Adapter Plate For Low Profile Suspension Truck Seats By Seat Inc. For Freightliner

    Seat Base Adapter Plate For Low Profile Suspension Truck Seats By Seat Inc. For Freightliner

    SEATS INC

    $67.99
    Freightliner Seat Plate Adapter Replacing Suspension Seat* High Quality Seat Base Adapter Plate* Sold Individually* Warranty On Seat Base Adapter Plates Against Defects In Workmanship & Material From...
    178092PS
    SKU:
    178092PS
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Make:
    Freightliner
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • Robert James 18 Piece Snap Kit For Seat Base Covers

    Robert James 18 Piece Snap Kit For Seat Base Covers

    ROBERT JAMES ENTERPRISES

    $22.94
    18 Piece Snap Kit For Seat Base Covers By Robert James* High Quality Snap Kit* 18 Piece * For Seat Base Covers From Robert James* Sold Individually * Warranty On Snap Kits Against Defects In...
    09-19505
    SKU:
    09-19505
    Product Type:
    Seats
    Material Options:
    Vinyl
    $22.94
    Qty in Cart: 0
    Price:
    $22.94
    Subtotal:
  • Air-Fit Stretching Massager Mat

    Air-Fit Stretching Massager Mat

    LAXON

    $299.00
    Air-Fit Stretching Massager with Heat W/ 22 Powerful Air Cells, Relaxation, 7 Massage Modes 5 IntensitiesRelax with the stretching massage mat featuring 7 unique modes. Target hip, back, and neck...
    09-192000179
    SKU:
    09-192000179
    Product Type:
    Seats
    $299.00
    Qty in Cart: 0
    Price:
    $299.00
    Subtotal:
  • Airhawk Office / Car Seat Cushion W/ Mesh Cover

    Airhawk Office / Car Seat Cushion W/ Mesh Cover

    AIRHAWK

    $117.99
    Airhawk Ergonomically Office / Car Seat Cushion W/ Mesh CoverTransform any chair, whether at home or in your vehicle, with the Airhawk Office Chair Cushion. Using patented Air Cell Technology, it...
    09-192000173
    SKU:
    09-192000173
    Product Type:
    Seats
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • Airhawk Truck Seat Cushion W/ Mesh Cover

    Airhawk Truck Seat Cushion W/ Mesh Cover

    AIRHAWK

    $137.99
    Airhawk Ergonomically Truck Seat Cushion W/ Mesh CoverThe Airhawk Truck Seat Cushion System with Cover is designed to help make long drives more comfortable by providing support and promoting better...
    09-192000174
    SKU:
    09-192000174
    Product Type:
    Seats
    $137.99
    Qty in Cart: 0
    Price:
    $137.99
    Subtotal:
  • Vendetta Black PC Billet Seat Base Adapter - Drilled For Air Fitting For Kenworth

    Vendetta Black PC Billet Seat Base Adapter - Drilled For Air Fitting For Kenworth

    VENDETTA

    $397.99
    Vendetta Black PC Billet Seat Base AdapterThe aftermarket seat base adapter is a great solution for adding more legroom when switching to an aftermarket seat. It aligns with the OEM drill pattern...
    02-1920003
    SKU:
    02-1920003
    Product Type:
    Seats
    Ready To Ship:
    Yes
    $397.99
    Qty in Cart: 0
    Price:
    $397.99
    Subtotal:
  • Bostrom Wide Ride II Serta Upper Seat W/O Suspension Base - Tan Ultraleather

    Bostrom Wide Ride II Serta Upper Seat W/O Suspension Base - Tan Ultraleather

    BOSTROM TRUCK SEATS

    $1,004.99
    Tan Ultraleather Bostrom Wide Ride II Serta Upper Seat* High Quality Seat* Ultraleather* Tan* Upper Seat * Features:  - Bottom Cushion With Fore/AFT Movement   - With Armrest* Without Suspension...
    6204809905
    SKU:
    6204809905
    Product Type:
    Seats
    Truck Class:
    Heavy Duty
    Material Options:
    Foam
    Make:
    Universal Items
    $1,004.99
    Qty in Cart: 0
    Price:
    $1,004.99
    Subtotal:
  • Bostrom Seat PR10 III Hi Back LoPro Seat W/ Dual Arms, Air Lumbar Support - Black Ultraleather

    Bostrom Seat PR10 III Hi Back LoPro Seat W/ Dual Arms, Air Lumbar Support - Black Ultraleather

    BOSTROM TRUCK SEATS

    $1,435.99
    Black Ultra-Leather LoPro 910 Truck Seat W/ Dual 16 Inch Armrests and Hi-Back Design* High Quality Seat* Ultra-Leather* Black* Hi Back* Features:  - 16 Inch Dual Armrest   - With 6 Inch Ride Zone  -...
    9220029900
    SKU:
    9220029900
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Material Options:
    Ultra Leather
    Make:
    Universal Items
    $1,435.99
    Qty in Cart: 0
    Price:
    $1,435.99
    Subtotal:
  • Clip Kit For Tilt Rod & Cushion Extension Rods For Bostrom Pro Ride & Patriot SD Seats

    Clip Kit For Tilt Rod & Cushion Extension Rods For Bostrom Pro Ride & Patriot SD Seats

    BOSTROM TRUCK SEATS

    $18.21
    Bostrom Pro Ride & Patriot SD Seat Clip KitCheck out our clip kit for Bostrom Pro Ride and Patriot SD seats. It comes with lower and upper clips for the bottom cushion tilt rod, plus clips for the...
    6222269001
    SKU:
    6222269001
    Truck Class:
    Heavy Duty
    Product Type:
    Seats
    Material Options:
    Steel
    Make:
    Universal Items
    $18.21
    Qty in Cart: 0
    Price:
    $18.21
    Subtotal:
  • Seat Frame For Bostrom 910 Series Midback Seats With Air Lumbar

    Seat Frame For Bostrom 910 Series Midback Seats With Air Lumbar

    BOSTROM TRUCK SEATS

    $377.99
    Replacement Bostrom 910 Series Midback Seat Frame* High Quality Seat Frame* Frame Only * Fits Seats That Are Mid Back With Air Lumbar* Sold Individually * Warranty On Seat Frames Against Defects In...
    6201023001
    SKU:
    6201023001
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Seats
    Make:
    Universal Items
    $377.99
    Qty in Cart: 0
    Price:
    $377.99
    Subtotal:
  • Bostrom ProRide Lo Pro Mid Back Seat - Blue Ultraleather

    Bostrom ProRide Lo Pro Mid Back Seat - Blue Ultraleather

    BOSTROM TRUCK SEATS

    $1,215.99
    Blue Ultraleather Bostrom ProRide Lo Pro Mid Back Seat* High Quality Seat* Ultraleather* Blue* Mid Back * Features Include:  - 4 Inch Ride Zone  - Drape Suspension Cover* No Armrest * Sold...
    9230010904
    SKU:
    9230010904
    Truck Class:
    Heavy Duty
    Material Options:
    Ultra Leather
    Product Type:
    Seats
    Make:
    Universal Items
    $1,215.99
    Qty in Cart: 0
    Price:
    $1,215.99
    Subtotal:
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Adding your products to cart

Here's the truth: investing those hard-earned dollars into aftermarket seating can fundamentally transform your driving experience. You can reduce your fatigue and get better lumbar support. That’s why we offer some of the best semi truck seats and accessories in the industry—built for comfort, durability, and long-haul performance. Whether you drive a Peterbilt, Kenworth, Freightliner, or another rig, you’ll find options that match your truck’s specs and your personal style.

Luxury Big Rig Seating Options

From air ride seats to universal semi truck seats and custom seat bases, we’ve got your backside covered. Choose your style and setup: - High-back, mid-back, and low-profile seats for every body type and cab layout. - Air ride seats for long-haul comfort, smoother suspension, and adjustable positioning. - Heated and cooled seat options to beat the heat or fight off the chill on extreme routes. - Ergonomic designs to ease back discomfort and promote better posture.

The Top Features

Material Matters Pick from cloth, faux leather, or genuine leather depending on your budget and the kind of road life you live. All built to handle real miles—not showroom fluff. Stylish & Functional Covers Dress up your seat with sleek two-tone seat covers, stitched accents, and built-in back pockets for on-the-go storage. Custom Base Adapters Mount your seat the right way with base adapters built for Seats Inc. Legacy, Sears Atlas, Bostrom, and more. Available in billet aluminum, gloss black, chrome, and custom powder-coat finishes.

Comfortable Accessories

Small upgrades with big difference: - Armrest covers for all-day elbow comfort - Lumbar support cushions to save your spine - Seat organizers to keep your essentials right where you need them

Get the Perfect Commercial Truck Seat

Check out our complete aftermarket semi truck seating guide to learn how to choose the right seat for your setup. Almost every new seat is going to need an adapter, unless it's a standard base unit. Let's say you have a mid-range truck, like a Freightliner M2 model; typically, those don't have a flat floor but a bit of a hump in the middle. That means you'll need a specific adapter and commercial truck seat that has a low-profile midback so you don't hit the roof. Lucky for you, our product selection is vast!

Why Shop Our Semi Truck Seating?

- Wide compatibility with Peterbilt, Freightliner, Kenworth, Volvo, and more. - Universal fitment options for hard-to-match setups. - Direct replacement or upgrade-ready seats and hardware. - Everyday low prices without sacrificing quality. - Real support from truck parts experts who understand your cab setup.

Start Driving in Comfort

A high-quality seat isn’t a luxury—it’s a necessity. Upgrade your semi truck seat, mount it with confidence, and finish it off with stylish covers and accessories that last. Shop the best semi truck seats and seating accessories today—and take the pressure off your back for the long haul.

Frequently Asked Questions About Semi-Truck Seats, Base Adapters & Covers

Will these seats fit my specific truck model and year?

Most aftermarket semi-truck seats are designed with universal mounting patterns that fit standard truck bases from manufacturers like Peterbilt, Kenworth, Freightliner, Volvo, and Mack. However, some trucks require specific base adapters. Check your current seat's bolt pattern (typically measured center-to-center) and compare it to the seat specifications. Common patterns include 8" x 8" and 11" x 11". If you're unsure, measure your existing seat base or contact us with your truck's year, make, and model for verification.

How difficult is it to install a new seat or base adapter?

Installation typically takes 30-60 minutes per seat with basic hand tools. You'll need a socket set, wrenches, and possibly a drill for certain adapters. The process involves unbolting the old seat, potentially installing a base adapter if needed, and bolting in the new seat. Most seats come with installation instructions. Common challenges include accessing tight bolts and ensuring proper electrical connections for air-ride seats. Professional installation is recommended if you're uncomfortable working with air lines or electrical connections.

What's the difference between vinyl, cloth, and leather seat materials?

Vinyl seats are the most durable and easiest to clean, making them ideal for drivers who eat in their trucks or haul dirty loads. They resist stains and spills but can get hot in summer and cold in winter. Cloth seats breathe better and provide more comfort in extreme temperatures but require more maintenance and are harder to clean. Leather offers premium comfort and appearance but needs regular conditioning and costs more. Consider your climate, maintenance preferences, and how many hours you spend in the seat daily when choosing.

Do I need a suspension base or air-ride system for my seat?

If you drive more than 6 hours daily or frequently travel rough roads, a suspension or air-ride seat significantly reduces fatigue and back pain. Air-ride seats offer the best vibration dampening and adjustability but require an air supply connection. Mechanical suspension seats provide good comfort without needing air hookups. Static (non-suspension) seats work for local drivers or backup seats but aren't recommended for long-haul use. Consider your driving conditions and health needs when deciding.

Will aftermarket seat covers fit my existing seats properly?

Universal seat covers work for most standard semi-truck seats but may require some adjustment for a snug fit. Look for covers with elastic bands, drawstrings, or hook-and-loop fasteners for better fitment. Measure your seat's backrest height, width, and cushion dimensions before ordering. Custom-fit covers are available for popular seat models like Bostrom, National, and Sears seating. Avoid covers that interfere with seat adjustment controls or armrest movement. For air-ride seats, ensure covers don't block ventilation ports.


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