Caterpillar cylinder heads are one of the most critical components in a diesel engine.
They control:
- Airflow into and out of the cylinder
- Combustion sealing
- Valve operation under extreme temperature and pressure
When replacement is required, selecting the correct cylinder head and supporting components is critical to maintaining engine performance and reliability.
Key Caterpillar Cylinder Head Options
Below are commonly used Caterpillar cylinder head configurations and components, along with current pricing and OEM comparisons.
C15 Stage 2 Loaded Cylinder Head
P200011 | 2635055
- Condition: New
- Configuration: Fully loaded
- Valve Upgrade: Inconel exhaust valves
Our Price: $3,724.40
Estimated OEM Price: $6,500 – $8,500
This configuration includes upgraded exhaust valves designed to handle higher thermal loads, making it suitable for engines operating under sustained load conditions.
Ultra Performance Loaded Cylinder Head
P200013 | 1835296
Compatible with: C15, C15 Acert, 3406E
- Condition: New
- Configuration: Performance-loaded cylinder head
Our Price: $4,494.98
Estimated OEM Price: $7,500 – $10,000
This cylinder head is designed for improved durability and performance across multiple Caterpillar platforms, including ACERT configurations.
C15 Spacer Plate
P010583 | 6I4421
- Condition: New
- Component Type: Spacer plate
Our Price: $440.86
Estimated OEM Price: $800 – $1,200
Spacer plates play a critical role in maintaining proper sealing between the cylinder head and block, especially under high combustion pressure.
3406B Cylinder Head
P200558 | N7W0006VS
- Condition: New
- Application: Caterpillar 3406B
Our Price: $3,294.95
Estimated OEM Price: $5,500 – $7,500
This cylinder head supports reliable performance in legacy Caterpillar platforms that are still widely used in heavy-duty applications.
Cost Comparison Overview
| Component | HHP Price | Estimated OEM Price | Savings |
|---|---|---|---|
| C15 Stage 2 Cylinder Head (P200011) | $3,724.40 | $6,500–$8,500 | Up to ~55% |
| Ultra Performance Head (P200013) | $4,494.98 | $7,500–$10,000 | Up to ~55%+ |
| C15 Spacer Plate (P010583) | $440.86 | $800–$1,200 | Up to ~60% |
| 3406B Cylinder Head (P200558) | $3,294.95 | $5,500–$7,500 | Up to ~50%+ |
Cylinder Head Design and Performance Considerations
Caterpillar cylinder heads operate under extreme conditions.
Key factors include:
Thermal Load
Cylinder heads are exposed to high combustion temperatures, particularly at the exhaust valves.
Upgraded materials such as Inconel improve resistance to:
- Heat fatigue
- Valve seat wear
- Long-term thermal stress
Combustion Sealing
The cylinder head must maintain a proper seal against the block.
This depends on:
- Surface flatness
- Proper spacer plate condition
- Head gasket integrity
Any loss of sealing can result in:
- Compression loss
- Coolant intrusion
- Reduced engine efficiency
Airflow and Valve Operation
Cylinder head design directly affects airflow through:
- Intake ports
- Exhaust ports
- Valve geometry
Proper airflow ensures:
- Efficient combustion
- Stable engine performance
- Reduced emissions-related issues
Fitment and Application Accuracy
Caterpillar engines require precise fitment verification.
Differences in:
- Engine Serial Number (ESN)
- Engine configuration
- ACERT vs non-ACERT setups
can all affect cylinder head compatibility. Selecting the correct part ensures:
- Proper installation
- Correct sealing
- Long-term reliability
Supporting Components Matter
Cylinder head replacement should always consider supporting components.
This includes:
- Spacer plates
- Head gaskets
- Fasteners
- Valve train components
Replacing these components together helps maintain:
- Proper alignment
- Sealing integrity
- Overall system performance
Final Takeaway
Caterpillar cylinder heads are critical to engine operation, affecting combustion, airflow, and durability.
Selecting the correct configuration, ensuring proper fitment, and using quality components all contribute to:
- Reliable performance
- Reduced wear
- Consistent engine operation
Call 844-304-7688 or visit highwayandheavyparts.com to get the right diesel engine parts for your application.
From diagnosis through delivery, we’re Highway and Heavy Parts.
