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Essential Semi Truck Spare Parts for DIY Repairs

Aug. 15 2025 Buying Guide By Empire Truck Sales, LLC

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Keeping your semi truck in top condition ensures your safety and the efficiency of your operations. Whether you're a seasoned driver or new to the trucking industry, it's crucial to have certain spare parts on hand for DIY repairs. These components can save you time and provide peace of mind on the road. Let’s explore some key spare parts every truck owner should consider keeping handy!

Air Brake System Components

The air brake system is vital for stopping power in trucks. Keeping spare air brake parts is essential:

  • Brake Chambers: Often change them as they wear out with daily use.
  • Air Lines and Fittings: Having extras can help swiftly address leaks that might affect braking performance.

Electrical System Essentials

Electrical issues can leave you stranded, so having the following spares is recommended:

  • Fuses and Bulbs: An assortment prevents downtime due to blown fuses or burnt-out lights.
  • Starter Relay: A backup starter relay is useful in case your primary fails, ensuring continued operation.

Fluids and Filters

Routine maintenance involves regular fluid check-ups and filter replacements:

  • Engine Oil and Coolant: Keep spare oil and coolant to maintain optimal engine temperature and performance.
  • Fuel Filters: Changing these regularly boosts fuel efficiency and protects the engine from impurities.

Tire Repair Kits

Flat tires are an inevitable part of trucking, so always keep:

  • Tire Repair Kit: Includes patches, sealant, and tools to fix minor punctures.
  • Spare Wheel: A ready-to-use spare tire saves significant time when replacing a damaged one.

Regularly checking these semi-truck parts can mitigate unexpected breakdowns. While having these essentials on board supports immediate fixes, it’s also wise to rely on expert assistance when needed. At Empire Truck Sales—we serve Mississippi, Louisiana, Florida, and Alabama—we’re here to ensure your rig stays road-ready with top-notch service expertise. Visit us today for all your trucking needs!