Kyotechs' service content covers the common turbocharger problems — oil starvation, contaminated oil, foreign-object damage and worn bearings — because a replacement turbo fitted to an engine with dirty oil feed lines fails the same way twice. The documented listings below are the supply side. A turbo is identified by its tag number and the engine it bolts to; housings that look alike can carry different wheels and actuators.
Documented listingsDocumented Turbocharger Listings
| Part number | Part | Engine / compatible with | Machine models |
|---|---|---|---|
| 10R8733 | Turbocharger GTA3782BRS | Caterpillar C13 engine | Engine application |
| 2056741 / 205-6741 | Turbocharger | Caterpillar | 320C, 320D |
| 6745-81-8080 | Turbocharger, 6D114 engine (Alibaba store listing) | Komatsu | Engine application |
| 49U77-02530 | Turbocharger (Alibaba store listing) | Komatsu | PC138US-10 |
A further documented store listing covers a turbocharger for the Hitachi ZX350. Before fitting any replacement, the feed and return lines, the air filter path and the cause of the original failure need attention — the engine-side checks are the same ones the engine repair solution runs during diagnosis.
- The tag number from the old turbo, engine model and machine model.
- How the old one failed — oil in the intake, shaft play, whistle, smoke — and whether the oil feed line was checked.
- Whether gaskets and lines are needed with the unit, so the set is quoted together.
Delivery and preparation times are confirmed for your order in the enquiry reply, in writing and before payment: the reply states the times, the packing and the shipping method that apply to your exact part number. Times are confirmed per order rather than published as a general figure, because they follow the listing, the quantity and the destination.
Frequently Asked Questions
Why did my turbo fail, and will a new one fail too?
Most turbo failures are oil-related: starved, dirty or coked oil destroys bearings. A replacement fitted without finding the oil-side cause is at risk. Describe the failure and the checks done — the reply will flag what else to inspect.
Is the turbo matched by the machine or the engine?
By the engine and the turbo's own tag number. The same machine model can carry different engines; the tag number settles it.
Do the parts carry a warranty?
Warranty terms are confirmed in writing for each order before payment. Kyotechs' own FAQ states that most parts are backed by a warranty against manufacturing defects; ask for the term that applies to your listing when you enquire.
Fitting a Replacement Turbo So It Lasts
A turbocharger's life is decided by its oil supply, so fitting a replacement is an oil-system job: renew the feed line or prove it flows freely, prime the new unit with clean oil before start, change the engine oil and filter, and check the air path for debris from the old failure — fragments of a broken wheel travel. Let the engine idle after first start rather than loading it immediately. These steps come from the same failure analysis Kyotechs publishes in its service content, and they are the difference between a turbo that fails in a month and one that outlasts the engine. Include the old unit's failure mode in the enquiry; it shapes what else the reply recommends checking.
Boost checks complete the picture: if the replacement turbo is fitted to an engine whose real fault was low fuel delivery or a restricted air filter, boost will still disappoint. Before the first start, confirm the air filter and intake path are clean and leak-free, and after the first runs, check for oil at the compressor outlet — early leakage there means the oil drain is restricted, a fitting fault rather than a turbo fault, and one that destroys the new unit if left.