Shop Heavy-Duty Diesel Engine Parts
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3804700 | Cummins N14 Tappet Kit, New
$39.13HHP#: P022238View product -
3804700 | Cummins Tappet Kit – Stc
$3.67HHP#: P021023View product -
3804725 | Cummins Gasket Set – Upper
$223.28HHP#: P022241View product -
3804747 | Piston Kit with Pin Kit for Cummins QSK, New
$355.91HHP#: P270636View product -
3804885 | Cummins Piston Kit, W/Pin, K
$245.67HHP#: P021516View product -
3804885 | KIT – PISTON – W/PIN
$477.24HHP#: P022244View product -
3804930 | Cummins ISB/QSB Standard Piston Ring Set
$32.39HHP#: P234415View product -
3804980 | Cummins ISB Standard Piston Kit
$130.21HHP#: P233699View product -
3806180 | Cummins Pump, Water C Series Short Nose
$131.06HHP#: P206324View product -
3806201 | Cummins Ring Set, ISB, 0.50Mm
$82.17HHP#: P206325View product -
3811995 | Cummins Rod – Connecting K19
$1,214.29HHP#: P022254View product -
3812092 | Cummins Plug – Expansion 3/16″ 6B
$0.63HHP#: P022256View product
Showing 3649–3660 of 32833 results
If you are unable to find what you are looking for, please call us as we have hundreds of thousands of products available and we cannot show them all on the website.
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!









