Cater pillar C9 Diesel Engine Camshaft | OEM 242-0674 242-0673 242-0670 | Diesel Engine Camshaft
Rebuild or overhaul your excavator, mining equipment, or heavy industrial machinery with this high-quality camshaft for the Cater pillar C9 diesel engine. The camshaft is a critical component that controls valve timing and lift, directly affecting engine performance, fuel efficiency, and power output. Manufactured to meet or exceed original OEM specifications, this camshaft ensures precise valve actuation, reduced friction, and long-term durability in the most demanding applications. Direct replacement for multiple OEM numbers including 242-0674, 242-0673, 242-0670, and related variants. Fits a wide range of Cater pillar-powered excavators and construction equipment – verify your engine model and serial number for compatibility.
| Parameter | Details |
|---|---|
| Engine Model | Cater pillar C9, C-9, C9 ACERT, C9.3 |
| Part Name | Camshaft (Complete Assembly) |
| OEM Part Numbers | 242-0674, 242-0673, 242-0670, 242-0671, 242-0672 |
| Engine Type | 6-Cylinder Inline Diesel |
| Displacement | 8.8 L |
| Number of Cam Lobes | 12 (6 intake, 6 exhaust) |
| Material | 4140 Alloy Steel / Hardened Alloy Cast Iron |
| Cam Lobe Hardness | 61-63 HRC (induction hardened) |
| Journal Diameter | 65.2 mm (-0.09, -0.07) tolerance |
| Journal Hardness | 61-63 HRC |
| Exhaust Cam Lobe Total Height | 55.30 mm |
| Intake Cam Lobe Total Height | 53.25 mm |
| Exhaust Cam Base Circle Diameter | 46.4 ±0.05 mm |
| Intake Cam Base Circle Diameter | 46.4 ±0.05 mm |
| Cam End Diameter | 65.10 mm |
| Surface Treatment | Nitrided / Induction Hardened |
| Condition | Brand New |
| Warranty | 6 Months |
| Equipment Type | Applicable Models |
|---|---|
| Excavators | Cater pillar 330D, 330D L, 330D LN, 330D MH (with C9 engine) |
| Excavators | Cater pillar 336D, 336D L, 336D LN, 336D2, 336D2 L |
| Excavators | Cater pillar 340D L, 340D2 L |
| Excavators | Cater pillar 345C, 345C L, 345D, 345D L |
| Excavators | Cater pillar 349D, 349D L |
| Excavators | Cater pillar 365B, 365B II, 365B L |
| Excavators | Cater pillar 385B, 385C, 385C L, 385C FS |
| Excavators | Cater pillar 5090B |
| Motor Graders | Cater pillar 140M, 140M 2, 160M, 160M 2 |
| Other Applications | Industrial engines and petroleum packages powered by C9 diesel engines |
✅ Critical Component for Valve Timing Control
The camshaft controls the opening and closing of valves, regulating the intake of air and fuel and the expulsion of exhaust gases for combustion. Precise valve timing is essential for optimal engine performance, fuel efficiency, and power output in heavy-duty excavator applications.
✅ Premium Alloy Steel Construction
Manufactured from high-strength 4140 alloy steel with nitrided surface treatment for exceptional wear resistance. The material ensures long-term durability under extreme combustion pressures and temperatures in demanding mining and construction environments.
✅ Induction-Hardened Cam Lobes
Cam lobes are induction-hardened to 61-63 HRC, providing superior resistance to wear and pitting even under continuous heavy-load operation. This hardness rating exceeds standard industry requirements for diesel engine camshafts.
✅ Precision-Ground Profiles
Each camshaft is CNC ground to exact OEM specifications with tolerance within ±0.003mm. Precision lobe profiles ensure accurate valve lift and duration, optimizing combustion efficiency and power delivery.
✅ Factory-Spec Journal Finishes
Bearing journals are precision-ground to exact tolerances, ensuring proper oil clearance and reduced friction. Proper journal finish promotes oil film retention for extended camshaft and bearing life.
✅ Rigorous Quality Testing
Every camshaft undergoes 100% inspection via CMM (Coordinate Measuring Machine) and magnetic particle detection to verify dimensional accuracy and detect any surface or subsurface defects. Batch testing ensures consistent quality across all units.
✅ Extended Service Life
Engineered to provide extended service life compared to standard aftermarket alternatives. The combination of premium materials and precision manufacturing ensures reliable performance through multiple overhaul intervals.
✅ OEM-Equivalent Performance
Manufactured to meet or exceed original Cater pillar specifications, ensuring perfect compatibility with C9 engine components including timing gears, bearings, and valve train assemblies. Matches original performance specifications for reliable operation.
100% Inspected – Every camshaft undergoes dimensional inspection and hardness testing before shipment. Magnetic particle detection ensures no hidden defects.
OEM Standard – Manufactured to meet or exceed original Cater pillar specifications in ISO 9001 certified facilities.
Warranty – 6-month warranty against manufacturing defects.
Global Shipping – Fast DHL, FedEx, UPS shipping available from multiple warehouses.
Expert Support – Need help identifying the correct camshaft for your engine? Send us your engine serial number or old part number.
The camshaft is a precision component that requires careful installation. When installing a new camshaft on a Cater pillar C9 engine, follow these critical guidelines:
Always verify correct timing marks alignment – improper timing can cause valve-to-piston contact and severe engine damage.
Lubricate cam lobes and journals with assembly lube or clean engine oil before installation.
Always replace associated bearings and timing gears during camshaft replacement.
Use OEM-recommended lubricants during assembly.
Follow factory torque specifications and tightening sequences for bearing cap bolts.
Required tools include engine timing kit and torque wrench.
Rotate engine manually after installation to ensure no binding occurs.
Professional installation is recommended due to the precision required for proper alignment and timing.
Warning: Never operate the engine without verifying proper valve timing after camshaft replacement. Incorrect timing can result in catastrophic engine failure.