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Classic Heavy-Duty Inventory

Affordable Used Diamond Parts Online

Restore your industrial workhorse with genuine used Diamond truck parts. From Diamond Reo engines to vintage Diamond T cab components, we provide high-quality OEM parts with fast shipping to New Jersey and across the US.

Tested Quality

Every Diamond part is rigorously inspected for structural integrity.

Fast Delivery

Rapid shipping for all used Diamond and Diamond Reo parts.

High quality used Diamond truck parts inventory

Why Buy Used Diamond Truck Parts from Us?

Maintaining a heavy-duty legend like Diamond Reo or Diamond T can be difficult when searching for original components. Our used Diamond parts offer the perfect balance of commercial-grade reliability and cost-savings. We source our inventory from carefully selected heritage vehicles, ensuring you get the rugged performance the brand is known for.

Whether you are a professional fleet mechanic in NJ or a restorer of classic American trucks, our catalog of used Diamond parts covers everything you need to keep your vehicle in service.

  • OEM Reliability: Authentic Diamond components—no low-quality aftermarket substitutes.
  • VIN Matching: We guarantee fitment using your vehicle's unique VIN or serial number.
  • Eco-Friendly: Buying used heavy-duty parts helps reduce environmental waste and preserves history.

Used Parts for All Diamond Models

We carry a specialized stock of used parts for Diamond T, Diamond Reo, and vocational truck models.

Diamond Reo Royale

Cab Assemblies, Radiators, and Steering Gears.

Diamond T Classics

Vintage Grilles, Hoods, and Dashboard Components.

C-Series / Giant

Heavy-Duty Axles, Transfer Cases, and Brake Drums.

Powertrain

Cummins/Detroit Diesel Engines and Fuller Transmissions.

Fastest Delivery for Diamond Parts in NJ

Based in Clifton, New Jersey, Falcon Car Parts is your premier destination for used Diamond parts in NJ. We provide same-day or next-day shipping options to Newark, Jersey City, Paterson, and Elizabeth. Skip the long lead times for rare truck parts and get your rig back on the road today.

Searching for "Diamond parts near me"? We are your local experts with a national reach.

NJ Local Support

Serving the Tri-State area with heavy truck expertise!

Our Multi-Point Inspection Process

Every single used Diamond truck part that leaves our warehouse undergoes a strict quality check:

  • 1. Visual Inspection: Checking for frame cracks, corrosion, or metal fatigue.
  • 2. Operational Testing: Mechanical and electrical components are bench-tested.
  • 3. Cleaning & Refurbishing: Parts are cleaned to ensure they are ready for industrial use.
  • 4. Condition Verification: We prioritize parts from low-hour donor vehicles.
  • 5. Secure Freight Packing: Heavy-duty crating ensures safe arrival of large parts.
  • 6. Final Certification: A diesel specialist signs off on the part's quality.

The Diamond Heavy-Duty Fitment Guarantee

Diamond trucks were engineered for the toughest jobs in America. We don't just sell parts; we provide the exact match for Diamond’s robust engineering.

Diesel Specialist

Our used Diamond engines are checked for cylinder compression and oil pressure integrity.

Chassis Durability

Expert testing for frame-mounted components and heavy-duty suspension racks.

Industrial Electronics

Certified used starters, alternators, and classic dashboard instrumentation.

VIN-Locked Support

We provide necessary guidance for VIN-locked modules and keyless entry components.

Diamond Truck Focus

We specialize in sourcing parts for the following Diamond generations:

  • Diamond Reo Royale
  • Diamond T (1911-1967)
  • Raider / Apollo Series
  • C-114 / C-116 Models
  • Vocational & Mixers

Diamond Parts FAQ

Used Diamond truck parts are often the only way to get original heavy-duty components that match the factory specifications for these classic brands. They are significantly more affordable and provide the industrial-grade fitment required for vocational trucks.

Yes! While we are leaders in the NJ market, we ship our high-quality used Diamond and Diamond Reo parts to all 50 states using trusted freight carriers specialized in handling large automotive and truck components.

We pride ourselves on accuracy. If you provide your VIN or serial number during the quote process, we guarantee fitment. If there is an error on our end, we offer a hassle-free return policy.

Absolutely. All heavy-duty engines, including Cummins and Detroit units from Diamond trucks, undergo oil pressure verification and structural inspections before they are certified for sale.

Yes. Falcon Car Parts provides a standard warranty on all major mechanical components, including used transmissions and axle sets, ensuring your industrial vehicle is protected.