SDEC SC9D Engine Parts
Quote after compatibility confirmation by machine model, engine model and part number.
Sourcing Parts for SDEC SC9D
The pages below cover common wear and maintenance parts for SDEC SC9D. Every quote is confirmed against the machine nameplate, engine model and OEM part number to avoid mismatched shipments.
To get a quote, send the SC9D nameplate photo, OEM part numbers, quantity and destination port.
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.
SDEC SC9D Specifications and Selection Notes
| Displacement | 8.82 L |
|---|---|
| Configuration | Inline 6-cylinder |
| Bore × stroke | 114 × 144 mm |
| Compression ratio | 16.5:1 or 18:1 depending on rating |
| Valves per cylinder | Two |
| Cylinder liners | Wet liners |
| Aspiration | Turbocharged with air-to-air intercooling across the whole series |
| Firing order | 1-5-3-6-2-4 |
| Machine power range | 115–206 kW |
| Genset prime power | 208–228 kW at 1500 rpm (200 kW / 250 kVA sets) |
| Emission stage | China III |
How SC9D Differs From the Rest of the Range
- The only SDEC series here that is turbocharged and intercooled across every rating — there is no naturally aspirated SC9D.
- Shares its 114 mm bore with the SC8D but runs a longer 144 mm stroke — liner bore and piston diameter match, while stroke-related parts do not. Both are wet-liner two-valve engines, unlike the dry-liner four-valve SC4H and SC7H.
- The only series here with derivative branches — SC9DT (natural gas, 148–206 kW) and SC9DF (high-output ratings). These are separate model families on the same platform, so quote them by the exact nameplate code.
- By far the most widely fitted SDEC series in Chinese truck cranes: confirmed across eight XCMG crane models from 25 t to 70 t.
Reading power from the model code
SDEC model numbers encode metric horsepower: multiply by 0.7355 for kW. On machine ratings the number is maximum power (SC7H220 → 162 kW); on D2 genset ratings it is standby power (SC9D310D2 → 310 PS / 228 kW standby). A trailing .1 or .2 marks the same power at a lower rated speed, which raises peak torque — an SC7H150 gives 660 N·m at 2200 rpm while an SC7H150.2 gives 700 N·m at 1800 rpm.
Machines Confirmed With SC9D Power
- XCMG QY25K5A truck crane (25 t) — SC9DF290Q4
- XCMG QY25K5C / QY25K5C_1 truck crane (25 t) — SC9DF300.1Q5
- XCMG QY35K5 truck crane — SC9DK320Q3
- XCMG QY40KC truck crane (40 t) — SC9DF340Q5
- XCMG QY50B.5II truck crane (50 t) — SC9DF340Q3
- XCMG QY70K-I truck crane (45 t) — SC9DF375Q3
- LiuGong ZL50CN-LNG wheel loader (5 t) — SC9DT220G2, the natural-gas branch
Series-level figures compiled from Chinese equipment databases and genset manufacturer data sheets, cross-checked against bore/stroke geometry. Each series covers many power ratings — always confirm against the engine nameplate before ordering.
Commonly Replaced Parts on SDEC SC9D
For SDEC SC9D diesel engines in construction machines, trucks and generator sets, these part groups are quoted most often. Confirm the engine nameplate before ordering.
- Overhaul kits: pistons, liners, rings, bearings and full gasket sets
- Fuel system: injectors, injection pump and common rail parts
- Turbocharger and intake system parts
- Water pump, thermostat and cooling system parts
- Oil pump and lubrication system parts
- Starter motor and alternator by voltage and mounting type
- Cylinder head, valves and valve train parts
- Filter sets: oil, fuel, air and water separator elements
This list covers typical wear items for this machine category. Availability for a specific part is always confirmed against the OEM part number.
SC9D Sourcing FAQ
Do you supply spare parts for SDEC SC9D?
Yes. Quote-ready SC9D parts currently include SDEC Generator Water Pump, SDEC Piston Liner Kit, SDEC Fuel Pump and more. Other parts can be confirmed with an OEM part number.
How do I confirm part compatibility for SC9D?
Send the SC9D nameplate photo, engine model and OEM part number. We confirm compatibility before quoting to avoid mismatched shipments.
How are SC9D parts shipped?
Parts ship with export packing by sea or air depending on weight, volume and lead time, with destination port costs confirmed in the quote.
What are the most commonly replaced parts on SDEC SC9D?
Frequent replacements on this diesel engine include overhaul kits, fuel system, turbocharger and intake system parts, water pump, thermostat and cooling system parts, oil pump and lubrication system parts and more, always confirmed against the OEM part number.