Collection: Truck & Commercial Parts

Commercial Truck Parts for Semis, Fleets and Work Trucks

A truck that's parked instead of working isn't earning anything. Easy Life Auto Parts stocks commercial truck parts for semi-trucks, medium-duty trucks and work pickups - lighting, body hardware, fuel system components and the bed accessories that keep a work truck organized and on schedule. We ship worldwide, and we're always adding more fitments across the major heavy-truck brands, so check back or ask if something specific isn't listed yet.

What's Covered in This Category

Semi-Truck and Heavy-Duty Components

Headlight assemblies, mirror covers, mud flap hangers and fuel system parts for Class 6 through Class 8 trucks from brands like Kenworth, Peterbilt, Freightliner, Volvo and International.

Work-Truck and Pickup Gear

Bed tool boxes, tonneau covers and bed-side storage for pickups and fleet trucks that need to haul and secure equipment, not just drive.

Fuel and Drivetrain Parts for Commercial Chassis

Fuel transfer pumps and related hardware sized for the diesel engines common in medium and heavy-duty trucks that run long hours with little downtime tolerance.

Signs You Need Commercial Truck Parts

• A cracked or fogged headlight housing on a semi that's failing inspection or just not throwing enough light
• Mud flap hangers bent or snapped from backing into a dock or curb
• Mirror housings cracked from a tight turn or flying road debris
• A work truck bed with no secure way to lock up tools between job sites
• Fuel delivery problems on an older medium-duty diesel chassis

How to Choose the Right Commercial Part

For semi-truck lighting and body parts, start with the part number on the old housing rather than just the truck's model and year - the same model often ran halogen and LED versions across its production run, and they're not interchangeable without rewiring. For fuel system and drivetrain parts, match the engine and chassis code, since a given truck model can carry more than one engine option over its lifespan. For bed storage and tonneau covers, measure your actual bed length rather than assuming based on the truck's trim name, since short, standard and long bed configurations all need different sizing.

Buying Guide: Matching Parts to Your Truck

Your situation	Look at	What matters most
Semi headlight cracked or dim	Headlight assembly	Halogen vs LED, exact part number
Mud flaps keep snapping off	Spring-loaded hangers	Bolt spacing, flex rating
Need lockable bed storage	Aluminum tool box	Bed dimensions, lock quality
Weather protection for an open bed	Tonneau cover	Bed length, mounting style
Older diesel chassis losing fuel pressure	Fuel transfer pump	Engine code match

Installation and Usage Tips

Semi headlight assemblies often involve disconnecting a multi-pin harness behind the housing - note the orientation before you unplug it, since some connectors look reversible but aren't. Spring-loaded mud flap hangers flex on impact instead of snapping, which is the whole point, so don't over-tighten the mounting bolts to the point where they can't move. Tool boxes and tonneau covers both benefit from a bead of sealant at the mounting points to keep water out of the bed rails over time. For fleet and owner-operator trucks, keeping a small stock of the parts that fail most often - mud flap hangers, bulbs, common fuses - cuts downtime more than almost anything else you can do.

Frequently Asked Questions

Do you handle fleet or multi-unit orders?

Yes. Contact us through our contact page with your part numbers and quantities and we'll get you a straight answer.

Are semi-truck headlights plug-and-play?

Most are, but always confirm your current housing is halogen or LED before ordering, since swapping types usually means rewiring you don't want to deal with roadside.

Will a tonneau cover fit any pickup bed?

No. Match your exact bed length and cab style - short, standard and long beds are not interchangeable, even within the same model.

Do you ship commercial truck parts internationally?

Yes, we ship worldwide. See our shipping page for timelines.

What if my truck or trailer isn't listed yet?

We're regularly expanding fitments. Use our request a part page and we'll see what we can find.

Why Buy Commercial Truck Parts From Easy Life Auto Parts

Downtime costs real money for fleets and owner-operators alike, so we focus on getting the right part number to you the first time. Orders ship worldwide with tracking through our track order page, and our warranty and returns pages explain exactly how we handle anything that needs to go back.

Semi-Truck Lighting in Detail

Headlight assemblies on heavy trucks take a beating from road debris, vibration and years of highway miles, and the housings themselves can fog, crack or simply fade enough to drop light output below a safe level. Halogen assemblies remain common on older trucks and are generally the cheaper option, while LED assemblies have become standard on newer models for better output and longer life. Many trucks can be upgraded from halogen to LED, but it usually requires the correct harness or ballast, so check compatibility notes rather than assuming a drop-in swap. Marker lights, turn signals and fog lights round out the exterior lighting most fleets keep spares of, since a truck with a lighting violation can get pulled off the road at an inspection.

Mirrors, Mud Flaps and Body Hardware

Mirror housings and covers take regular hits from tight turns, low branches and other trucks in close quarters at a dock or fuel stop. Chrome and painted covers are mostly cosmetic but also protect the mirror arm underneath from corrosion. Mud flap hangers are a small part that fails constantly in real-world use - spring-loaded designs flex rather than snap when backing into a curb, which is why they've become the standard over rigid brackets. Reflective strips on flaps and hangers also help with nighttime visibility for anyone following too closely.

Work Truck Bed Storage

Aluminum diamond-plate tool boxes are the standard for secure, weatherproof storage in a truck bed, RV, or trailer, and a side-handle, lockable design keeps tools secure between job sites without taking up the whole bed. Bed-side swing cases tuck into the wheel well area and free up the rest of the bed for cargo, which matters for anyone hauling materials alongside their tools. Soft roll-up tonneau covers protect cargo from weather while still allowing full bed access when rolled back, and they're generally easier to install and remove than hard covers if you need the bed open occasionally for larger loads.

Fuel System Parts for Commercial Chassis

Medium-duty diesel trucks rely on the same core fuel delivery principles as light-duty diesels - a transfer or lift pump feeding filtered fuel to the injection system - but they run longer hours and higher mileage, so these parts see more cumulative wear. A failing transfer pump on an older medium-duty chassis typically shows up as stalling, hard starting or fuel pressure codes. Because these trucks often stay in service for a very long time, parts availability and correct engine-code matching matter even more than on a typical consumer vehicle.

Heavy Truck Brands and Common Needs

Kenworth and Peterbilt

Both run a mix of halogen and LED headlight generations depending on model year, plus plenty of shared body hardware across their lineups. Confirm the exact part number on the housing before ordering.

Freightliner

A hugely common fleet chassis with a long production run, meaning headlight and body part fitment can vary meaningfully between model years even within the same cab style. See our Freightliner headlights collection.

Volvo and International

Both brands run distinct mirror and body hardware generations, and International's medium-duty chassis in particular has stayed in service for decades, so older fuel system parts remain in steady demand.

Comparing Commercial Truck Part Types

Part	Main job	Common material	Fails from
Headlight assembly	Visibility, inspection compliance	Polycarbonate housing	UV fogging, cracked lens, moisture
Mud flap hanger	Flap mounting, debris control	Spring steel	Impact from curbs, docks
Mirror cover	Protects mirror arm, cosmetic	Chrome-plated plastic or steel	Impact, corrosion
Aluminum tool box	Secure bed storage	Diamond-plate aluminum	Lock wear, lid seal failure
Tonneau cover	Cargo weather protection	Vinyl or hard composite	UV degradation, torn seams
Fuel transfer pump	Moves fuel from tank to engine	Steel / composite housing	Wear, contamination, age

More Questions About Commercial Truck Parts

How do I know if I need halogen or LED for a semi headlight?

Check your current housing's bulb type directly, or the part number stamped on it. Model year is a decent starting clue but not a guarantee, since trucks get updated mid-run.

Why do mud flap hangers fail so often?

They take direct impacts backing into docks, curbs and uneven lots on a near-daily basis for a working truck. Spring-loaded designs hold up far longer than rigid ones, but even those wear out eventually.

Can I lock a bed tool box permanently to the truck?

Most are designed to be bolted or strapped down securely while still being removable if you ever switch trucks or trailers. Check the mounting hardware included with your specific box.

Do fuel transfer pumps need regular replacement?

Not on a fixed schedule, but they wear with mileage and age like any mechanical pump. Watch for hard starting, stalling or fuel pressure codes as early warning signs.

Fleet and Owner-Operator Considerations

Downtime is the real cost in commercial trucking, not just the price of the part. Keeping a small stock of frequently failing items - bulbs, mud flap hangers, common fasteners - at a yard or in the truck itself means a quick roadside or dock fix instead of a delayed run. For fleets running multiple units of the same make and model, standardizing on one supplier for recurring parts like headlights and mud flap hardware simplifies ordering and keeps spares consistent across the fleet.

For background on how heavy trucks are classified and configured, the semi-trailer truck article on Wikipedia is a useful general reference.

Pairing Commercial Parts With the Rest of the Truck

Commercial trucks share a lot of underlying mechanical needs with heavy-duty diesel pickups. Our diesel truck parts collection covers engine-side components, while car body parts covers broader body hardware beyond what's listed here. If your work truck also tows, our towing accessories collection rounds out hitches and trailer lighting.

Understanding DOT and Inspection-Related Parts

Heavy trucks operating commercially are subject to regular safety inspections, and lighting is one of the most common reasons a truck gets flagged. A cracked lens, a dim or inoperative headlight, or a missing reflective strip on a mud flap can all result in a violation that takes a truck out of service until it's fixed. Keeping lighting and reflective hardware in good condition isn't just about visibility - it's about avoiding an unplanned stop that costs a day of work and a trip to a shop that may not have your exact part on hand. Carrying basic spares for the parts most likely to fail is cheap insurance against that kind of delay.

Matching Part Numbers Across Model Years

Heavy trucks tend to stay in production with the same basic cab and chassis design for many years, sometimes over a decade, which means a part number can span a wide range of model years - but it also means small mid-cycle updates can quietly break that compatibility for a specific component. Always cross-reference the number stamped on your current part, not just the truck's listed model year, especially for lighting and mirror hardware where connector types and mounting points can change without an obvious visual difference.

Weatherproofing and Corrosion

Commercial trucks spend far more hours on the road, often through all four seasons and sometimes with exposure to road salt, than the average personal vehicle. Mirror hardware, light housings and bed storage all benefit from checking seals and gaskets periodically, since a small water leak that would be a minor annoyance on a car can corrode a connector or ruin stored tools and cargo on a work truck. Aluminum tool boxes resist corrosion well on their own, but the seals around the lid and mounting points are usually the first thing to wear out and let water in.

Choosing Between OE and Aftermarket for Commercial Parts

For safety-critical items like lighting, OE-equivalent parts that match the original spec are usually the safer default, since they're built to pass the same inspection standards as what came on the truck. For body hardware like mirror covers, mud flap hangers and bed storage, quality aftermarket options often perform just as well and can be considerably more affordable, especially when ordering in the quantities a fleet typically needs.

Quick Glossary

• Class 6-8 truck: federal weight classification covering medium to heavy-duty commercial trucks, including semis.
• Cab-over vs conventional: two basic semi-truck layouts, with the engine either under or ahead of the cab.
• GVWR: Gross Vehicle Weight Rating, the maximum safe loaded weight of the truck.
• Bed rail: the top edge of a pickup bed where tool boxes and tonneau covers typically mount.

Planning a Fleet Parts Order

If you're ordering for more than one truck, gather part numbers from each unit rather than assuming they're identical, even within what looks like the same fleet purchase batch. Trucks bought a year or two apart, or built mid-cycle, can carry different lighting or hardware generations. Sending us a list of VINs or part numbers through our contact page lets us confirm everything matches before a larger order goes out, which saves a lot of back-and-forth compared to ordering piece by piece and sorting out mismatches afterward.

A Note on Lead Times

Commercial and heavy-truck parts sometimes carry longer lead times than common passenger-car items, simply because the pool of trucks running any given configuration is smaller. If you're planning scheduled maintenance rather than an emergency repair, ordering ahead of when you actually need the part avoids an unplanned truck sitting idle while you wait on a shipment. Our shipping page has general timelines, and our FAQ page covers common ordering questions for larger or less common parts.