United Truck Parts

4 State Trucks carries the best new semi truck parts for Peterbilt, Kenworth, Freightliner, International, and more.

Find top-quality Mack truck parts at 4 State Trucks. Upgrade your rig with OE replacements and aftermarket solutions to ensure peak performance and durability. From bumpers and engine parts to fenders, you'll discover everything needed to keep your truck in prime condition. Hit the road confidently with reliable replacement Mack Truck parts.

  • International truck interior parts like dash kits, door panels, and seating. - Commercial truck exterior accessories including aerodynamic bumpers with tow light cutouts, mirrors, fuel tank steps, and chrome stacks. We carry commercial semi truck parts that are road-tested and built to last.
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Shop durable and stylish semi truck wheels built for performance and reliability. Explore aluminum, steel, and spoke options plus must-have parts like hub pilot wheels, valve stem caps, and wheel studs—all at competitive prices.

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Fleet Equipment Magazine: PartsNow Launches AI Platform for Faster Heavy-Duty Truck Parts Sourcing

PartsNow AI truck parts search aims to help fleets identify and purchase parts using chat, voice, and image recognition tools.

Knoxville News Sentinel: PartsNow Introduces a New AI-Assisted Way to Search for Truck Parts

TalkRev launches PartsNow.ai, an Agentic Commerce Platform for heavy‑duty truck and trailer parts. This is a game changer in the industry and AI will help us reach more truck and trailer operators and ...

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Train anyone who will be using your chosen e-commerce solution so they can take full advantage of the tool. Supply chain issues have fleets scrambling to find needed parts. They have been forced to ...