Not every engine request we get is for a passenger car — fleet operators running Hyundai buses and heavy trucks need engines too, and the D6HA/D6HC covers some of the largest platforms Hyundai builds.
Engine Overview
The D6HA/D6HC is a 10.0L–12.0L CRDi diesel from the H-Engine family, fitted in the Universe bus and Trago/Xcient heavy trucks. This is a different scale of engine entirely from our passenger car lineup, built for continuous heavy-duty operation rather than daily commuting.
Why It's in Demand
Bus and heavy truck operators can't afford extended downtime the way an individual car owner can — a fleet vehicle sitting idle costs revenue every day, which makes a tested, ready-to-install used engine especially valuable in this category compared to a lengthy overhaul.
What to Check Before Buying a Used Unit
- Compression and leak-down test results across all cylinders
- Turbocharger condition, given the sustained high-load operation these engines see
- Injector and high-pressure fuel pump condition
- Documented operating hours or mileage from the donor vehicle, where available
We test and document all of this before a heavy-duty engine ships — the same process we use for our passenger vehicle engines, detailed in our used engine grading guide.
Middle East & Latin America Fit
Long-haul trucking and intercity bus routes are common across both regions, and Hyundai heavy trucks and buses see steady use on these routes — a category worth stocking separately from passenger vehicle engines given the different customer base and order size.
Looking for a D6HA/D6HC heavy-duty engine? Contact HNS KOREA for current stock, test results, and pricing.
Related parts catalogs
Browse our catalogs by category and model: engine parts, transmission parts, chassis parts, body parts, trim parts, or find your vehicle in the Hyundai & Kia model list, KGM, Renault Korea and GM Korea catalogs.