For heavy hauling, the 245-4324 cylinder head delivers peak ACERT boost. Fits C15 15.2L engines in Peterbilt 379 trucks. Workshop and fleet supply
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The Ruich Value 245-4324 is a reinforced high-nickel iron cylinder head specifically engineered for Caterpillar C15 ACERT dual-turbo engines. It addresses compression loss and thermal cracking in Peterbilt 379 and Kenworth W900 long-haul fleets. Workshop and fleet supply ready.
The Caterpillar C15 ACERT 15.2L engine is a pillar of the North American logistics industry, powering heavy-duty workhorses like the Peterbilt 379 and Kenworth W900. At the critical top-end of this twin-turbocharged platform, the Caterpillar C15 ACERT cylinder head (OEM 245-4324) must withstand immense cylinder pressures and rapid thermal cycling. Ruich Value supplies this precision-engineered C15 dual turbo head to uphold Caterpillar’s rigid QDR (Quality, Durability, and Reliability) standards. Manufactured from high-density, alloyed gray iron, our heads restore the factory-spec 18.0:1 compression ratio essential for the high-horsepower demands of MXS and NXS engine serial prefixes.
A chronic failure point for many highway fleets is the ACERT vs 6NZ difference mismatch during engine overhauls. Attempting to install a single-turbo head on an ACERT block leads to immediate valvetrain and lubrication failure. Furthermore, consistent thermal cracking under high boost often originates in the bridge areas between valve seats. Our replacement 245-4324 heads feature reinforced deck surfaces and optimized coolant passages to solve these structural vulnerabilities. This 24-valve SOHC head ensures maximum thermal resilience even in performance-tuned 625HP truck configurations.
Engine rebuilders and commercial logistics managers operating in the wholesale Caterpillar head market require absolute dimensional accuracy. Every 245-4324 assembly, cross-referencing to 10R-8884 and 20R-5232, is 100% water jacket pressure tested and vacuum checked for seal integrity. Whether you are maintaining a Kenworth W900 cylinder head or overhauling a vocational 385C excavator, our factory-direct inventory ensures your 15.2L engine returns to service with the peak torque and fuel economy required for profitable long-haul operations.
| Parameter | Technical Value |
|---|---|
| Primary OEM Number | 245-4324 / 2454324 |
| Engine Compatibility | CAT C15 ACERT (BXS, MXS, NXS, SDP) |
| Valve Train Configuration | SOHC (Single Overhead Cam) |
| Valve Count | 24 Valves (4 per Cylinder) |
| Bore x Stroke | 137.2 mm x 171.4 mm |
| Compression Ratio | 18.0:1 (ACERT Specific) |
| Material Grade | High-Nickel Alloy Gray Iron |
| Cross-Reference | 10R-8884, 20R-5232, 223-9250 |
Our heavy-duty cylinder head catalog extensively covers the high-horsepower Caterpillar ACERT and C-series lineage. Explore our complete Caterpillar Categories for matching camshafts, ACERT twin-turbochargers, and master engine overhaul kits.
| Model | Part No. | Type | Remark |
|---|---|---|---|
| 3304PC | 8N1188 | PC | Pre-Combustion. Fits 3304 PC only. |
| 3304DI | 1N4304 | DI | Direct Injection. Fits 3304 DI only. |
| 3306PC | 8N1187 | PC | Pre-Combustion. Fits 3306 PC only. |
| 3306DI | 8N6796 | DI | Direct Injection. Corrected from 8N1187. |
| 3406PC | 110-5097 | PC | Pre-Combustion. For early 3406 engines. |
| 3406DI | 110-5096 | DI | Rectangle Port. Fits 3406B / Early C15. |
| 3406C | 110-5096 | DI | Round Port. Fits late 3406C. |
| 3406E | 176-9918 | DI | Specific for 3406E. Check casting number. |
| 3408A | 7N0858 | PC | Pre-Combustion. Fits 3408 w/ Glow Plugs. |
| 3408B | 7W2225 | DI | Direct Injection. Fits 3408B. |
| 3412A | 7N0848 | PC | Pre-Combustion. Fits 3412 w/ Glow Plugs. |
| 3412B | 7W2243 | DI | Direct Injection. Fits 3412B. |
| C7 | 219-5843 | DI | Common Rail Fuel System. |
| C9 | 332-3619 | DI | Fits C9. Casting # 3117226. |
| C12 | 132-3252 | DI | Marine & Truck applications. |
| C13 | 345-3752 | DI | Acert Technology. |
| 3406E / Late C15 | 110-5096 | DI | Fits 3406E & Early C15 (6NZ). Single Turbo. |
| C15 Acert | 245-4324 | DI | Fits C15 Acert (Twin Turbo) & C18. |
| C18 | 223-7263 | DI | Single Overhead Cam. Fits C18 & late C15. |
| 3116 | 140-7373 | DI | Mechanical Unit Injector (MUI). |
| D342 (D8K) | 8N6000 | PC | Application: D8K Bulldozer. |
| D342 (D8H) | 8N6004 | PC | Application: D8H Bulldozer. |
| 3208 | 6I2378 | DI | Naturally Aspirated (NA). |
| Make | Machine / Truck Model | Year Range | Engine Prefix | Application |
|---|---|---|---|---|
| Peterbilt | 379 / 389 / 386 | 2004–2007 | MXS / NXS / BXS | Heavy Haulage |
| Kenworth | W900L / T800 / T660 | 2004–2007 | MXS / NXS / SDP | Long-Haul Truck |
| Freightliner | Classic XL / Century Class | 2004–2007 | BXS / MXS | Logistics Truck |
| Caterpillar | 385C / 390D Excavators | 2005–2014 | C15 ACERT | Earthmoving |
The 245-4324 is a 24-valve SOHC head built exclusively for the ACERT dual-turbo series. It is not compatible with the earlier single-turbo 6NZ or 3406E heads, which utilize different oil passage orientations. Always verify your engine serial number prefix (e.g., MXS, NXS, BXS) to ensure you are receiving the correct dual-turbo architecture to avoid catastrophic fitment errors.
Correct liner projection height (typically 0.003″ to 0.006″) is mandatory to ensure the fire-ring on the head gasket is properly crushed by the 245-4324 deck surface. Failure to verify this with a depth micrometer will result in premature combustion seal leaks and repeated gasket failure. We recommend using a new Caterpillar-spec spacer plate for every ACERT top-end overhaul.
The C15 ACERT utilizes Torque-to-Yield (TTY) fasteners. The sequence requires an initial torque of 170 Nm (125 ft·lb), followed by a 120-degree angular turn. You must use brand-new head bolts, as they stretch permanently during the initial installation and cannot provide the clamping force required to maintain the seal under high-boost ACERT combustion pressures.
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