Power Generation Engine Parts
Yuchai and SDEC spares for gensets and project power units
Related Products
Gasket and overhaul kits
Yuchai Engine Overhaul Kit
Overhaul kits for Yuchai engines used in loaders, trucks, small mining equipment and gensets. Yuchai part numbers are tied to the specific calibration, not to the series name: YC6A covers dozens of builds such as YC6A260-T302 and YC6A240-T300, and compression ratio, pistons and head gasket thickness can differ between them. There is no single kit that covers YC4D, YC6B, YC6J and YC6A together — a four-cylinder YC4D shares nothing with a six-cylinder YC6A. Send the complete engine nameplate code and the engine serial number and we build the kit for that engine.
Fuel injector and fuel pump
Yuchai Fuel Injector
Fuel injector matching for Yuchai diesel engines, quoted by engine nameplate and injector part number. Yuchai injectors follow the calibration, not the series: YC6A alone covers dozens of builds such as YC6A260-T302 and YC6A240-T300, and injector flow rating differs between them although the engine looks the same from outside. The four-cylinder YC4E and the six-cylinder YC6L share nothing here. We ask for the number stamped on an injector already fitted as well as the engine nameplate, because on a machine that has been repaired before, what is in the engine is often not what left the factory, and matching the running set matters more than matching the original specification. Injectors are supplied as a set for a reason: one new injector against five worn ones leaves the engine running unevenly and the new one doing more work than it should.
Turbocharger
Yuchai Turbocharger
Turbocharger supply for Yuchai engines working in construction equipment and generator sets. The turbo is matched to the power rating rather than the engine series — one YC6J family covers several ratings and each is turned with a different compressor and turbine trim. This listing also spans the 10.338 L six-cylinder YC6MK and much smaller four-cylinder YC4D units, which have nothing in common. What identifies a turbo reliably is the plate on the turbo housing itself, so send a photograph of that alongside the engine plate. Before ordering, one thing is worth checking: repeat turbo failures are almost always an oil supply or air filtration problem rather than a bad turbo, and a second new unit will fail the same way if the cause is still there.
Water pump and oil pump
Yuchai Water Pump
Cooling water pumps for Yuchai engines in construction, mining support and genset applications. This listing covers four different engines, from the four-cylinder YC4D up to the YC6108G, and the pump differs by series and usually by build within a series. Pulley diameter and groove count follow what the machine has to drive, so two engines carrying the same model code can take different pumps. Send the engine nameplate, the number cast into the old pump body, and a photograph that shows the pulley. Say also whether you want a bare pump or one with the pulley already pressed on — pressing a pulley in the field without the right tooling is the usual way a new pump gets damaged before it ever runs.
Starter and alternator
Yuchai Starter Motor
Starter motors for Yuchai engines, checked by voltage, mounting type and engine model. Four things decide the part and the engine model is only one of them: system voltage (12 V on the smaller four-cylinder builds, 24 V on most six-cylinder and genset applications), the number of mounting bolts and their spacing, the tooth count on the pinion, and whether the unit is reduction geared or direct drive. Count the pinion teeth and the mounting bolts on the old unit before ordering; those two numbers settle most enquiries on their own. One diagnostic point: if the engine turns over slowly rather than not at all, check the batteries and the earth strap first. A large share of the starters we are asked to replace are working correctly.
Water pump and oil pump
SDEC Generator Water Pump
Water pump sourcing across the SDEC generator engine range. These are four separate engine platforms, not one part: the SC4H is a four-cylinder 4.3 L unit while the SC13G is a six-cylinder 12.88 L unit, so the water pump differs by series and in most cases by rating within a series. We source for all of them, but each quote is built against one specific engine — send the full nameplate code (for example SC9D220D2, not just SC9D) and the engine serial number.
Piston, liner and ring kits
SDEC Piston Liner Kit
Piston, liner and ring kits for SDEC engine overhaul and genset maintenance. The expensive mistake on these kits is ordering across liner types. The SC7H runs dry liners, which are pressed into the block; the SC8D and SC9D run wet liners that seal directly against coolant. A wet-liner kit therefore includes the lower liner O-rings and the top flange seal and a dry-liner kit does not, so the two are not interchangeable whatever the bore. Bore on its own is not enough either: the SC8D and SC9D share a 114 mm bore but run 135 mm and 144 mm strokes, so their pistons differ in compression height even where the liner looks identical. Send the full nameplate code, the engine serial number, and tell us whether the block has been rebored, since oversize pistons carry their own part numbers.
Fuel injector and fuel pump
SDEC Fuel Pump
Fuel pump quote support for SDEC diesel engines in genset and industrial equipment use. Injection pumps follow the calibration rather than the series: one SC9D covers many power ratings and each rating has its own pump part number and fuelling map, which is why a quote needs the full nameplate code (SC9D310D2, not SC9D). Two further things decide the part — whether the engine is mechanically governed or electronically controlled, and the emission stage it was built to. If the engine plate is unreadable, photograph the plate on the pump itself. The pump carries its own number, and on a used machine that is often the only reliable identification left.
Starter and alternator
SDEC Alternator
Alternator and charging system parts for SDEC-powered gensets and construction machines. Four things identify an alternator and the engine series is only a starting point: system voltage (24 V across most of this range, though 12 V appears on smaller industrial builds), rated output in amps, the mounting foot and bracket pattern, and the pulley. Single-groove, multi-groove and poly-V drives all turn up on the same engine family depending on what else the machine has to drive. Counting the pulley grooves and photographing the mounting feet identifies the unit faster than any model number. Worth ruling out first: a charging complaint is as often a slipping belt, a corroded earth strap or a failed regulator as it is a scrap alternator.
Cooling system parts
SDEC Oil Cooler
Oil cooler and gasket parts for SDEC diesel engines operating in hot oilfield and construction environments. This listing spans four separate engine platforms — the 6.44 L SC7H, the 8.82 L SC9D, the 10.5 L SC11CB and the 12.88 L SC13G — and core size scales with the engine, so nothing crosses between series. Most enquiries that reach us as oil cooler turn out to need the housing gasket set and O-rings rather than a complete assembly; those are the parts that fail and they cost a fraction of a core. The distinction that matters is where the oil is going: an external weep is usually gaskets, while oil found in the coolant or coolant in the oil means the core itself has failed. Tell us which you are seeing.