Shop Heavy-Duty Diesel Engine Parts
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International/Navistar DT466E Upper Gasket Set, New (1889245C96 )
$417.65HHP#: P029552View product -

Cummins ISM, M11, L10 Cam Follower, New (3417645 )
$213.72CPL/ESN Prefix: 2037, 2729, 8557
HHP#: P259239View product -

Detroit Diesel Series 60 14L Inframe Engine Rebuild Kit, New (23530665QCA)
$3,670.72HHP#: P028567View product -
Caterpillar C12 Water Pump, New (0R0705)
$331.87HHP#: P003796View product -
Cummins ISX, X15 Water Pump Kit, New (6305090RX)
$627.06HHP#: P346143View product -
Caterpillar C15, 3406E, C16 Connecting Rod Bearing, New (2243246)
$30.67CPL/ESN Prefix: BXS, MXS, NXS, SDP
HHP#: P005290View product -
Cummins QSX Dual Cam Inframe Engine Rebuild Kit, New (4376173)
$3,859.53HHP#: P349040View product -
International/Navistar DT466E Fuel Injector, Remanufactured (1480430019)
$264.82HHP#: P108068RView product -
Detroit Diesel Series 60 12.7L In-Frame Engine Rebuild Kit, New (23533204)
$3,168.76HHP#: P028598View product -
International/Navistar DT466 Oil Pump, Remanufactured (1832092C92)
$1,511.95HHP#: P108090RView product -
International/Navistar DT466, DT466E Oil Pump, New (1822326C93)
$596.37HHP#: P236240View product -
Caterpillar C15, 3406E Bare Crankshaft Assembly, New (0R9906)
$3,598.36CPL/ESN Prefix: MBN
HHP#: P003309View product
Showing 529–540 of 32824 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!















