Shop Heavy-Duty Diesel Engine Parts
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3798390SP | Cummins 6.7L Shroud Plate, New
$92.31HHP#: P273568View product -

380-2062 | Caterpillar Piston & Ring Kit, C 6.6 0.50 Mm
$141.32HHP#: P256289View product -
380-2063 | Caterpillar Piston & Ring Kit, C6.6 0.50 Mm
$158.28HHP#: P256290View product -
380-2065 | Caterpillar Ring Set, Piston C4.4T/Ta & C6.6, 0.50 Mm
$46.26HHP#: P256291View product -
3800140 | Cummins Kit, Piston Pin, L10
$25.65HHP#: P021655View product -
3800256 | Cummins Kit, Piston Pin, L10, M11
$20.01HHP#: P021657View product -
3800319 | Cummins Cylinder Kit, ISC
$163.35HHP#: P021661View product -
3800319 | Cummins Kit, Cyl Thick Wall QSC 8.3 Short Liner
$340.55HHP#: P258553View product -
3800348 | Cummins Gasket, Bottom Set 6C
$197.02HHP#: P206237View product -
3800637 | Cummins Valve Kit – Exhaust M11
$19.17CPL/ESN Prefix: 2350, 2371, 2607, 2608, 2728, 2729, 8556
HHP#: P020961View product -
3800638 | Cummins Valve Kit – Intake M11
$11.85CPL/ESN Prefix: 1414, 1558, 1855, 1856, 1866, 1868, 1870
HHP#: P020794View product -
3800727X | Cummins Gasket Set – Upper K
$307.20HHP#: P021684View product
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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!












