Place of Origin:
China
Brand Name:
CAT
Model Number:
248-5376
This S310C080 turbocharger assembly is the coolant-cooled unit that serves the earlier of the two CAT 330C machine generations built around the C9 six-cylinder engine. It is quoted under 248-5376 with 248-5246 as the principal figure, and the rebuilt equivalents carry the 10R-2355 and 10R-2232 prefixes. Because the later machine of the same class moved to a different charger family, the generation must be confirmed before dispatch.
| Product Name | Turbocharger Assembly |
|---|---|
| Charger Frame | S310C080 |
| Quoted Number | 248-5376 |
| Principal Number | 248-5246 |
| Reman Numbers | 10R-2355 and 10R-2232 |
| Older Cross Figures | 178484, 174755, 171847, 191-5094, 10R-0368 |
| Engine | The six-cylinder C9 of the C series |
| Machine Fitment | 330C, 330C L, 330C FM and 330C MH |
| Cooling | Centre housing water cooled, with oil feed as well |
| Boost Control | Wastegate with a preset arm |
| Packing | Foam cradle, coolant ports plugged, arm braced |
| Same Badge, Later Machine | The next generation of the same machine kept the engine name and moved to a different charger family with its own number block, so a search on the model alone returns the wrong article more often than the right one. |
|---|---|
| Two Figures, One Group | The quoted figure and the principal figure sit inside the same block and both appear on the same parts page, so a quotation has to state which one is being sold. |
| Water In The Housing | This assembly carries coolant through its centre section, and an oil-only unit from a neighbouring application will fit the flange and then run hot under load. |
| Prefix Meaning | Figures beginning with the two-character prefix are rebuilt articles carrying a core charge, not new production, and the price difference between them is a deposit rather than a discount. |
| Later Engine Family | The engine that followed this one in the same machine class has its own charger with a different outlet angle, and the two are constantly confused because the displacement figures look alike on paper. |
Air trapped in the housing after fitting cooks the bearing within hours. The bleed point is on the highest hose rather than on the charger itself.
The oil feed union hides a screen that fills with carbon. A unit installed without cleaning it fails before the first oil change.
Shortening the wastegate arm to recover lost boost conceals a blocked aftercooler, and the overspeed that follows takes the compressor wheel with it.
A leaking manifold gasket upstream drops boost and coats the housing in soot, which reads as a failed charger on a bench test.
Wastegate actuator, cartridge, turbine housing, exhaust gaskets, coolant hose set, oil feed pipe, drain pipe and air inlet hose.
Q1: Why does this fit one generation only?
Because the machine was redesigned around a different charger when its engine was updated, and the mounting points moved with it.
Q2: Is the housing really water cooled?
Yes, and the coolant hoses must be reconnected and bled, not capped off.
Q3: What do the two-character prefixes mean?
A rebuilt article with a returnable core.
Q4: Which figure should I quote?
The one cast or stamped on the old housing.
Q5: Can a later machine use this unit?
Only with its own manifold and plumbing, which defeats the purpose.
Q6: Does the actuator come fitted?
Yes, set on a jig, and it should not be moved by hand.
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