Featured Products
Fast-moving inventory
Popular Products
High-demand heavy-duty parts customers reorder most often, surfaced to help buyers move faster.
Shop Categories
- Brakes
- Bus Parts
- Cab, Body & Mirrors
- Clutch
- Driveline
- Electrical & Lighting
- Engine & Aftertreatment
- Exhaust & Emissions
- Filters & Filtration
- Frame & Chassis
- Front Axle
- Fuel Tanks & Fuel System
- Gifts for Truckers
- Maintenance
- Miscellaneous
- New Arrivals
- Power Generation
- Rear Axle
- Recalls & Field Fixes
- Steering
- Suspension
- Trailer Parts
- Transmission
- Undercarriage
- Wheel End, Wheels & Tires
Shop Brands
View all Brands- Navistar International Navistar International
- Meritor Meritor
- FleetGuard Filters FleetGuard Filters
- Monroe Monroe
- Fleetrite Fleetrite
- Baldwin Filters Baldwin Filters
- Eaton Eaton
- Bendix Bendix
- National Seating National Seating
- Dana Spicer Dana Spicer
- Goodyear Tires Goodyear Tires
- Grote Grote
- Atro Engineered Systems Atro Engineered Systems
- Hendrickson Suspension Hendrickson Suspension
- TruckLite TruckLite
Prime Fleet Parts Accounts
Serious About Uptime? So Are We.
Create your account today and get access to better pricing, faster reorders, and priority support.
Why buyers come back
Keep Your Fleet Moving
Find the right heavy-duty truck parts faster, order with confidence, and get back on the road with less downtime.
Quick lookup
Find Your Part Fast
Get to the right part quickly so your trucks aren’t sitting longer than they should.
- Search by part number, brand, or category
- Focused heavy-duty inventory
- Built to reduce downtime
Shop with confidence
Built for Uptime
Everything we carry is selected to keep working trucks, fleets, and equipment on the road.
- Core heavy-duty replacement parts
- Categories that match real-world repairs
- Less searching, more fixing
Real support
Expert Parts Support
Get help from specialized parts professionals before you order—so you get it right the first time.
- Mon–Fri: 7:00 AM – 12:00 AM EST (12:00–05:00 UTC)
- Saturday: 8:00 AM – 4:00 PM EST (13:00–21:00 UTC)
- Real experts, not just order takers
Repeat purchasing
Fleet Buyers Save Time Here
Reorder common parts faster, keep purchasing organized, and make it easier to stay ahead of repairs quicker.
- Quick access to repeat purchases
- Order history in one place
- Built for planned maintenance
Prime Fleet Parts Commitment
Heavy-Duty Truck Parts Built Around Uptime
Prime Fleet Parts helps fleets, repair shops, owner-operators, and heavy-duty truck professionals find the parts they need faster. With access to a massive inventory of commercial truck parts, strong vendor relationships, and dedicated parts specialists, we work every day to keep trucks moving and downtime under control.
Massive Parts Inventory
In-stock access to thousands of heavy-duty truck parts across major categories.
From filters and brake components to drivetrain and electrical parts, we maintain a deep catalog built for fast fulfillment and reduced downtime.
OEM & Vendor Relationships
Direct sourcing through trusted OEM and aftermarket vendor channels.
Strong relationships help us secure consistent availability and competitive pricing across Cummins, Eaton, Fleetguard, Baldwin, and more.
Bulk Buying to Pass Savings On
Volume purchasing strategies designed to lower your cost per part.
We buy smart and in bulk so fleets and shops can benefit from better pricing without sacrificing quality or availability.
Inventory Specialists Who Know Uptime
Real parts experts focused on uptime-critical components.
Our team helps identify the right part the first time and supports sourcing when something isn’t easy to find.
Why Prime Fleet Parts
More Than a Parts Website — A Sourcing Partner
Parts Confidence
Find the Right Heavy-Duty Part Faster
Search our growing catalog of heavy-duty truck parts, commercial vehicle parts, and fleet maintenance items with support available when you need help.
- Part number, brand, and category search
- Support for hard-to-find items
- Focused on reducing downtime
Fleet Savings
Better Pricing Through Better Sourcing
Through vendor relationships, OEM access, and bulk purchasing efforts, we work to bring customers competitive pricing on the parts they rely on.
- Volume purchasing focus
- OEM and vendor sourcing channels
- Built for shops, fleets, and repeat buyers
Customer Support
If It’s Not Listed, Ask Us
Not every available part is always listed online. If you cannot find what you need, our U.S.-based parts professionals can help source it.
- Help sourcing unlisted parts
- Support from U.S.-based specialists
- Focused on getting it right the first time
Message from Our Leadership Team
Prime Fleet Parts was created with a simple purpose - to make it faster, easier and more reliable for customers across the world to get the heavy duty truck parts they need. While Prime Fleet Parts is a new name, the experience behind it is not. It is powered by an organization with more than 125 years of experience serving customers. For generations, our company has been built on more than selling parts. We have been built on solving problems, taking care of people and earning trust one customer at a time. As the world becomes more digital, we are expanding the way we serve our customers. Our website is designed to be fast, easy to use and competitively priced but what truly sets Prime Fleet Parts apart is what happens behind the screen. Every order is supported by a team of experienced parts professionals who understand heavy duty trucks, understand customer urgency and understand that getting the right part matters. With more than $16 million in parts inventory on our shelves and backing by OEM warehouses across the United States we are ready to move quickly — but our greatest strength is still our people. At Prime Fleet Parts, our goal is not just to complete a transaction. Our goal is to create a positive memory with every customer, every order, every time. Whether you know exactly what you need or need help finding the right solution our team is here to support you with the knowledge, care and commitment that have defined our company for more than a century.
Prime Fleet Parts: fast, easy, competitive — and backed by people who care.