we have the right parts for all your Equipment needs

Get your parts quickly and easily with Custom Truck One Source. Our knowledgeable technicians provide top-notch customer service, and our $50MM parts inventory is ready to go across North America. Shop for parts instantly on our website with our Quick Search or Bulk Upload your parts spreadsheet for large orders. Not sure of your part number? Use our search features to search by equipment model. Call our friendly staff for assistance finding the parts you need. No order is too small or too large for us! Use the search bar below to search for a part name or part number, or simply click SEARCH to view all parts.


Browse parts and accessories for commercial trucks from Custom Truck One Source. We carry Load King truck parts for numerous types of commercial vehicles. You can build an order to request information on each type of part you need. Request a quote for parts and accessories for utility trucks and equipment today.

Dependable Parts for Commercial Trucks

The trucks in your fleet keep your business moving, so outfit them with replacement parts from Custom Truck One Source. We carry utility truck parts from our in-house manufacturing division, Load King.

The Load King team specializes in manufacturing stock and custom parts for trucks, trailers, cranes and other utility vehicles. Each part exhibits Load King’s extreme attention to detail and knack for innovation, which results in durable products for precise applications.

At Custom Truck One Source, we offer Load King parts for various types of commercial trucks, including bucket trucks, dump trucks, water trucks, service trucks, roofing conveyors and vacuum trucks. Whether your business is in utilities, rail, telecommunications, forestry or another industry, you can find the parts you need for your equipment through Custom Truck One Source. Use Load King parts to repair or maintain vehicles like Terex boom trucks, crossover cranes, Load King Stinger and Load King Lightning PTO.

Shop Parts and Accessories for Utility Trucks and Equipment

Custom Truck One Source carries Load King parts to ensure the highest levels of quality in all standard and custom components. We offer parts that make up numerous critical systems within your commercial fleet, including the following:


Shift gears confidently using Load King clutch discs, bearings, filters, harnesses and other transmission components.


Revamp your truck’s handling with Load King suspension components like coils, sway bars, ball joints and shocks.


Protect your drivers and vehicles with new brakes capable of stopping vehicles loaded to their maximum capacity.


Improve starting efficiency or find the part that gets the engine turning again.


Protect the environment while maximizing fuel efficiency with replacement emissions components.

Electrical Components

Replace your vehicle’s critical electrical equipment, such as the alternator, battery, sensors and lights.

Engines and Engine Components

Find powerful, efficient engines for your specific machinery, plus replacement parts that enhance engine performance.


Purchase equipment that optimizes your workshop and truck organization strategy.

Tires and Wheels

Fit your vehicles with new wheels and tires for a smooth ride on any terrain the job requires.

Tracks and Rollers

Repair your truck’s sliding doors with tracks, rollers and related components.

Trailer Parts

Find parts to maintain and repair flatbed trailers, gooseneck trailers, lowboy trailers and any other trailer type you own.

Truck Crane Parts

Shop for replacement parts for truck cranes like the Load King Stinger. We offer parts for the upper and lower structures, plus optional equipment that boosts efficiency and organization.

Water Truck Parts

Maintain your water truck fleet with replacement spray bars, assembly pumps, tank drains and more.

Wheel End Parts

Fill the garage with hubcaps, bearings, nuts, spacers and other essential wheel end components.

Body Parts

Maintain each vehicle’s exterior with new parts for the body, including doors, windows, body panels and installation equipment.

Load King Commercial Truck Parts

When you have work to do, every vehicle, trailer and piece of equipment at your disposal needs to perform at its best. Achieving high-level performance starts with the parts that allow your gear to function.

Load King, the Custom Truck One Source parts manufacturer, develops parts that preserve and enhance vehicle and equipment performance. Since 1956, Load King has pushed boundaries, leveraging innovative designs and manufacturing methods in the pursuit of excellence.

Load King’s dedication to innovative and diligent manufacturing results in reliable parts for heavy equipment such as commercial trucks, trailers and cranes. Fleet managers across industries trust Load King parts to maintain their assets. Work with Custom Truck One Source to order standard parts or customize a component to meet your specifications.

One Source for Commercial Truck Parts

Custom Truck One Source is an industry leader offering dependable parts for commercial trucks. Businesses nationwide order commercial truck parts through us because they trust us to provide the following:

  • Selection: Custom Truck One Source has an extensive selection of parts for multiple types of commercial trucks. Find what you need for each vehicle in your fleet.
  • Quality: We carry parts from the expert manufacturers at Load King. Each part offers premier durability at a competitive price.
  • Convenience: Our online ordering system makes finding and ordering what you need easy. You can pick up the parts at a Custom Truck One Source location near you or have us deliver them.
  • Transparency: We provide a comprehensive quote for your parts order before confirming your purchase.
  • Communication: We update you on your order’s status until it arrives at your facility or you pick it up from us.
  • Service: Our customer service representatives are available to discuss our inventory and help you find the right product, whether it’s a standard part or a custom build.
  • Support: We maintain and repair commercial trucks, so work with us when you need assistance installing or replacing parts.

Online Ordering in the United States and Canada

As your one-stop for commercial truck parts in the contiguous United States and Canada, Custom Truck One Source offers a smooth online ordering process with convenient pickup options. Browse our site to find the parts your vehicle needs. Add each part you need to your request, then submit it for a comprehensive quote. We’ll fulfill your order at the nearest Custom Truck One Source location, where you can pick it up or have us deliver it.

Request Information on Commercial Truck Parts

Load King parts from Custom Truck One Source will prepare your fleet for hours of rugged use. We offer a wide range of custom parts and accessories for commercial trucks, trailers and cranes. Custom Truck One Source also provides convenient ways for you to receive your parts and accessories within your schedule. Browse our selection online, then request information on the parts and accessories you need to receive a quote.

For more on our selection of commercial truck parts, please contact us online today.