Shop Heavy-Duty Diesel Engine Parts
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AR78310 | John Deere Piston, 3164/4219/6329 W/Pin
$90.91HHP#: P209827View product -
AR78361 | John Deere Disk, Clutch EMBrague
$5.56HHP#: P209828View product -
AR8069 | Cummins Liner Kit – V903
$98.85HHP#: P024019View product -

AR82355 | John Deere Ring Set, Piston 500 Series
$67.28HHP#: P209829View product -
AR83610 | John Deere Kit, Cyl 6466D
$265.55HHP#: P209830View product -
AR84089 | John Deere Kit, Cyl 6619
$416.64HHP#: P209831View product -
AR85541 | John Deere Tractor/Combine Fuel Injector Nozzle, Remanufactured
$123.00HHP#: P103541RView product -
AR85618 | John Deere Kit, Connector
$6.63HHP#: P209832View product -
AR8614 | Cummins Repair Kit – Air Compressor
$8.15HHP#: P024020View product -
AR87753 | John Deere Ring Set, Piston 6466D
$61.17HHP#: P209833View product -
AR87999 | John Deere Disk Kit/Jgo. Discos
$301.78HHP#: P209835View product -
AR89622 | John Deere Washer, Thrust Set Std
$29.42HHP#: P209838View product
Showing 6841–6852 of 33082 results
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Aftermarket Parts for Cummins, Caterpillar, Detroit Diesel and Many More
At Highway & Heavy Parts, we specialize in providing top-quality parts for big trucks and agricultural equipment, featuring industry-leading brands like Cummins, Caterpillar, and Detroit Diesel. Whether you’re looking for complete engine rebuild kits, fuel injectors, turbochargers, or gaskets, we have everything you need to keep your diesel engine running at peak performance.
Premium Diesel Engine Parts for Big Trucks & Agriculture
We know that downtime is costly. That’s why we offer high-quality, OEM-spec aftermarket parts designed to meet or exceed manufacturer standards. Our extensive inventory ensures you get the right part quickly, helping you stay on the road or in the field with confidence. A few of the major diesel manufacturers which we produce and distribute replacement parts for are Cummins, Caterpillar, and Detroit Diesel. Check out some of the aftermarket diesel parts we carry for these big trucks and agricultural equipment.
Cummins Diesel Engine Parts
From the reliable Cummins ISX to the hardworking 5.9L and 6.7L engines, we provide:
- Engine rebuild kits
- Fuel injectors & pumps
- Turbochargers
- Cylinder heads & gaskets
Caterpillar Diesel Engine Parts
Caterpillar engines power some of the toughest machines on the road and in agriculture. We stock parts for C15, 3406, 3126, and other popular CAT engines, including:
- Overhaul kits
- Turbochargers
- Cylinder heads
- Oil pumps & more
Detroit Diesel Engine Parts
Detroit Diesel engines are built for power and durability. Whether you have a Series 60, DD13, DD15, or DD16, we have the parts to keep it running strong:
- Engine rebuild kits
- Fuel injectors
- Camshafts & lifters
- Turbochargers
Why Choose Highway & Heavy Parts?
Quality You Can Trust – We source premium aftermarket and OEM-spec parts.
Fast & Reliable Shipping – Get your parts when you need them.
Expert Support – Our ASE-certified diesel technicians are here to help you find the right part.
Competitive Pricing – Get high-performance parts without breaking the bank.
Get back on the road or in the field with confidence! Browse our selection of Cummins, Caterpillar, and Detroit Diesel engine parts today. If you have any questions, contact our expert team for personalized support!











